DHM Big Bore Kit install on my Honda Grom (msx125) - 186cc of PURE POWER!

Hey! Thanks for watching & I hope you enjoyed. This video was a long one to edit but it was worth it!! This BBK from DHM is awesome & well worth the money considering it was around the price of some air cleaners for a Harley Davidson. Below I pasted the link to the all inclusive BBK kit as well as my MERCH link and all the other typical stuff in every video description. I do have to say I'm not a mechanic obviously lol, so some of the stuff I did might be wrong or there might be better ways to do it.....perform all bike work at your own risk!
DHM all inclusive BBK: www.dhmotoring.com/products/d...
GO GET YOUR RIDIN DAD MERCH - teespring.com/stores/ridindad
My Bikes
2020 Harley Davidson Low Rider S
-Low Rider Build Series Here
• Low Rider S Build
2020 Honda Grom
-Grom Build Series
• Grom Build
Disclaimer I'm in no way, shape, or form, a Mechanic....Perform any personal modifications/maintanence at your own risk.
My Current Motovlog Setup
-Gopro Hero8 Black www.amazon.com/GoPro-HERO8-Wa...
-Gopro Media mod www.amazon.com/GoPro-Media-Mo...
-Media Mod Light attachment www.amazon.com/GoPro-Light-Mo...
-Sony Omnidirectional Mic www.amazon.com/Sony-ECMCS3-Om...
-Sony ICD-UX570 Digital Voice Recorder www.amazon.com/Sony-ICD-UX570...
Editing Software
-Cyberlink PowerDirector 365 www.cyberlink.com/products/po...

[@SCFPV]

Part of the fun in owning a Grom, is trying to get the most power you can out of the little engine. I love it, and couldn't give less OAF what people think about it.

[@RidinDad]

Hell yeah man!

[@pschnur]

Just installed this same BBK into my 2020 Blue Monkey, and used the video as a step-by-step. Short story, it fired right up and runs great! Thanks Ridin Dad! I went 0.003 intake and exhaust, no valve clicking. Great vid, and very helpful - especially the zip tie trick on the cam chain.

[@RidinDad]

Hey that’s awesome man!!! Glad to help, that’s why I do what I do lol. Have fun with it man, it’s so much better than stock!

[@wadzilla3711]

My 2020 Grom is 4 days old and this in its future come fall. Great video.

[@RidinDad]

Do it!!!!! The groms the being stock lol

[@aeror115]

Happy new year buddy! Wish you a great start and all the best for 2021

[@RidinDad]

Thank you!!! Same to you 👊🏻

[@jrking178]

Keep up the good informative info, thank you. Waiting for the 2021.

[@RidinDad]

Thank you! Where ya at? In USA they just announced we will be getting the 2022 model

[@EddieFresh3]

I don't even own a grom, and I still watched the whole video. It's making me want one though!

[@RidinDad]

Ayyyy, I appreciate that!!!! Thank you👊🏻 I think they’re awesome little bikes. Super fun and easy to work on

[@marcusquitoriano218z]

Same lol

[@RidinDad]

Awesome!!! Thanks for watching man! 🤙🏼

[@popitscorner777]

@@RidinDad what is your top speed change to that you can hit comfortably without banging the Rev

[@RidinDad]

This kit is more torque than anything. I knew that getting it too. I hit around 60-63mph and nowhere close to redline with stock gearing

[@lolinarellano9783]

Just got it done today thanks bro 💯💯💯

[@RidinDad]

Happy to help man! Have fun with it!!

[@kyled4156]

Awesome video! Very well made and explained!👍

[@RidinDad]

Thank you!! 👊🏻

[@legsnapper8890]

First one if your vids i’ve seen. Rad intro

[@RidinDad]

I appreciate it man. Thank you! 👊🏻

[@leeedwards7721]

THANKS Bud, I;m getting my 1st GROM in a week and have been looking for Videos like this. I am trained Mechanic [UK] And just needed a video that explains how to do the Cam-Timing bit. It looks like a straight forward Kit. Kind Regards/Safe-Riding Wales [UK].

[@RidinDad]

Yeah for sure. If I can do it anyone can! lol. Thanks man 👊🏻 you too

[@davep8361]

I don't have a grom but interested, very well explained vid. Good job. Would've been nice to see you on it doing your '150 miles'. Hope you had a good christmas in these troubled times, as we did. All the best have a happy healthy new year to you and yours. Dave from England

[@RidinDad]

Hey, thank you man! I really appreciate that. I’ll be posting a lot more on the gram as well as some other stuff I have planned for the next year. Thank you for supporting the channel. Hope all is good for you and yours as well 👊🏻

[@travisv.4213]

You need a motorcycle lift. I want one for my garage too. Nice vid man. Merry Christmas and Happy New Year.

[@RidinDad]

Thank you man you too! And agreed lol. That would make everything so much easier with filming and for my knees and back lol

[@MrCirrux]

Saw the video and loved it very simple to install. I have a question since the install how many miles did you put on your grom and are there any issues you’ve seen?

[@RidinDad]

Thanks! I put probably 5-700 miles on since the install but I sold the bike quit a while ago so I'm not sure how many miles the new owner has on it now

[@HBJ5483]

A new BBK 🤣🤣🤣! Subscribed!!!

[@RidinDad]

🤙🏼😎!

[@harleydave2316]

Great Job!!! Best channel ever?? I'm pretty partial to my own but yours is definitely solid. Haha I laughed so hard when you said "why big bore kit... If you're a man..." ROFL!! Oh... from my own Harley big bore kit experience, piston clips are the devil!!!! UGH! :)

[@RidinDad]

Lolol thanks man. I appreciate you watching!!!

[@TheWigg]

fantastic video!

[@RidinDad]

Thanks!

[@Jenuin]

Just bought a 125cc 2022 Honda GROM because they did. Five speed. Now looking for a big bore kit and probably change some sprockets.

[@RidinDad]

Sweet man. Have fun!

[@jeffshope7345]

I love this dude hes great!

[@RidinDad]

Thanks man!! 🤙🏼

[@saulopena9840]

Really good job bro

[@RidinDad]

Appreciate that!!

[@andrewgordo1]

Just about to install the kit on my Monkey, great video thanks, question because of the oil cooler do i need to put more oil in than normal? thanks

[@RidinDad]

Thank man! And yes it will need more oil. I think I wound up using about 1.5 qts. Happy installing!

[@imnickcampos]

Followed this to install my kit, no problem at all! Although, they must have changed up their oil cooler kit a bit because mine came with a black bracket and did not mount to the bottom valve adjuster tappet, instead it mounted to the bottom head bolts and it tucked up there pretty nicely. I did have to turn the idle screw one turn because of the poor idle but my only issue now is tough starts, which i'm sure a lithium battery will take care of.

[@RidinDad]

That’s awesome!!!! I’m glad I helped man. Sounds like a better position fo the oil cooler for sure. And yeah you’re exactly right. A battery with Some higher cca’s will fix that problem completely

[@imnickcampos]

@@RidinDad For sure! Did you have clutch slip immediately with yours? Anything over 6k and mine just slips through the rev range. Looks like the tb clutch kit is next for me 😂

[@RidinDad]

Never had a chance to experience that. I planned ahead and prior to the bbk I installed a 6 disc clutch kit & 80% stiffer springs!! Videos on all that in the grom build series playlist too 🤙🏼

[@imnickcampos]

@@RidinDad oh nice! I'll have to check that out then, appreciate it. I was wrong to think the stock clutch would hold 😂

[@RidinDad]

Lol yeah man

[@aguywhogetsby3114]

Thanks for the video man. Very well put together and very informative.

[@RidinDad]

Thanks man. My pleasure!

[@ernestofleites8465]

Grum coming out nice bro

[@RidinDad]

Thanks man! Should be highway ready soon!!

[@user-wl8ft1nu6m]

Thank for the nice vid Dad! Unfortunately, in Greece we don't have Groms... But if we did, we all would have them over bored!

[@RidinDad]

That sucks man! Interesting you don’t have them there. Do you have the Honda Navi?

[@user-wl8ft1nu6m]

We only have astrea grand, super cub and cbr 125 from small Hondas. Not Navi. Maybe they wound be very expensive for the local (small) market

[@RidinDad]

@user-wl8ft1nu6m I gotchya man. The Supercubs are pretty cool!

[@TwoFeetDown92]

The wrist pin connects the piston to the rod, clips are called c clips.

[@RidinDad]

Ok

[@franthevan65]

Been definitely thinking about grabbing one this summer im new to riding motorcycles always drove trucks and wanna transition due to stuff being so expensive.

[@RidinDad]

I hear ya man. Groms are some of the cheapest bikes you can get and they’re reliable and fun. Can’t go wrong unless you’re looking to highway commute with it

[@MikeBowsher]

YES I did stumble upon your Chanel and hit the subscribe and the bell Ridin Dad , hope to be a riding Dad again someday myself.

[@RidinDad]

Appreciate that! I’ll hope with you too man 👊🏻

[@JoeJ523]

I HAVE A 2020 HONDA GROM and I am seriously thinking about getting this kit. Everyone I talk to about it says that im going to need alot more parts to make it work right and be reliable is this true?????? Awesome tutorial by the way!!!!!!

[@RidinDad]

Thank you! So everybody’s opinion is a little different. This kid specifically has pretty much everything you would ever need. There are some additional parts very small like some valve parts that are just a little bit more durable that would be a long-term thing but other than that there’s really nothing that I can think of that you would need with this kit. It pretty much has everything in it as long as you select the correct drop-down items and adding it to your card. That’s the main reason I went with this kit. I only have about 200 miles on it so far so I can’t tell you longevity wise how it has been but I can tell you that I have not been gentle with the bike and it’s giving me absolutely zero issues. I would say to make sure you have a good aftermarket exhaust and a good air filter to allow your bike to breathe with this new big bore kit

[@joeygsta]

Hey mate have you had it on the dyno or do you have a rough idea how much HP increase it gives?

[@RidinDad]

No idea either one man. Hard to judge how much hp increase their is without a dyno and Right now I don’t want to spend hundreds to dyno it. This specific kit is more about torque than hp too so I’m sure the torque number is incredibly impressive

[@helmet098]

I love the intro song

[@RidinDad]

Thank yooouuu!!!

[@helmet098]

Tip: You can do the cam on the bench

[@RidinDad]

Yeah of course, but it was pretty easy as is & I wanted the head on first before I messed with the cam

[@josephsaucedo8691]

Looks like a lot of work and it's a little pricey 700$ compared to swapping the engine complete kit with a zs190 direct replacement 799$ your also able to sale the extra parts as well could possibly brake even if the honda engine is fresh. 👌👍✌️

[@RidinDad]

I really wasn’t interested in an engine swap. The dhm kit is incredibly well made and I think the price is fair for all you get

[@thatguy3836]

so was it worrht it? great vid, just wish u would have told us your top speeds and stuff. thanks though!

[@RidinDad]

Thank you! And yeah....very worth it. Next weeks video is my first impressions. It’s impossible to find my top speed with this. I haven’t been able to find my top speed with the belt either due to where I live and the fact that the top speed would be well over 100mph. I didn’t feel too speed was important with this because it doesn’t decrease top speed to a noticeable level and it’s not made to increase the top speed at all in this gearing.

[@InvidiousIgnoramus]

They call the kit "all inclusive", but if you're going to be installing an oil cooler I hope you got a high flow oil pump as well. I recall a lot of big bore guys having severe heating issues because they weren't actually getting oil flowing throw the cooler on the stock pump.

[@RidinDad]

I do have a high flow pump. Have a video on that too

[@gar7217]

Hey bud how much oil did you used for the 186 bbk ? I'm doing the same thing but I don't want to less

[@RidinDad]

So I kind of just played it by ear. I don’t remember exactly how much I used. Obviously more than the typical amount because of the included oil cooler. I think I just added a little bit extra and then checked the level and went from there. I honestly don’t remember too much

[@CamboJuJu]

Hey for those new to the bbk, if and when you upgrade your throttle body to something bigger ie, koso 34mm throttle body w/ intake manifold, expect to spend some money on getting your cylinder ported to match the throttle body. Just so you know - cause I didn’t.

[@RidinDad]

Ive seen plenty of people do a new cylinder and add a throttle body later on without porting the cylinder....why would you have to do that?

[@dimasuracalvinjake683]

Hey dude, you got any specs on the camshaft? Like what's the lift?

[@RidinDad]

I do not, I just know it’s the one that they recommend and obviously sell as part of this kid to work the best with it. Other than that I don’t know the lift or duration or lobe for anything sorry man

[@ranutherider]

I’m going to subscribe just for your 3 reasons!🤔 I fit all those criteria.

[@RidinDad]

There y go 😂

[@mattlarry2662]

Exactly I’m grabbing the kit

[@RidinDad]

Sweet!

[@Erikbarbaric]

Do big bore kits move the hole for your exhaust I want a bbk but I want my exhaust to mount in the same spots

[@RidinDad]

No. Same exhaust positions as stock. I used the same exhaust with no changes

[@dustinevans9269]

hey man where'd you get those wheels? and are they bigger than the stock 12 inch?

[@RidinDad]

They are the stock wheels and I had them powder coated

[@lewispoole7919]

Hi, very helpful video. Does this bbk only fit the Honda grom? I’m looking at buying the same kit. Did you feel that it made much difference?

[@RidinDad]

Lots of difference. Tons more torque. It’s made for the groms engine so I’m not sure what else you’re looking to put this on

[@donkeyhole2782]

I can't believe I watched this whole video and not one scene of you riding it after. Not even a short clip of it idling. That is worse than offending girls.

[@RidinDad]

Lol ok guy. My deepest apology

[@noellumex7555]

hello great vid, what mm is the piston in kit? I am looking for big bore kit for "older" Honda SL100 1971 and the 120 kits available do not fit older 100's ....I be happy with just piston and rings I have good machine shop access for cyl , case or piston mods needed to make it work thanks

[@RidinDad]

I truthfully don’t know since it came as an all inclusive kit. If you go to the dhm site that may explain more. I also don’t know if you can buy the piston by itself from them. eBay might be a good choice if you have a shop to do things for you

[@lwil6393]

Can you give us some sort of take on the increase in engine vibration. How noticeable is it?

[@RidinDad]

0 noticeable engine vibration for me

[@RidinDad]

Increase

[@mattmccauley5561]

People, top speed will still be the same as stock it will just get there faster. Only way to get more top speed is by changing the sprockets.

[@RidinDad]

True to an extent. Different kits and higher compression etc will enhance top speed but this one is way more for torque

[@TwistedThrottleyt]

Did you put the needle bearing back in the rod?

[@RidinDad]

I left the whole needle beating assembly intact

[@lorenzoflores7990]

Hows it riding since you've done the install? has their been any problems with reliability?

[@RidinDad]

0 problems at all. I’ve abused it too lol. It’s great!!

[@lorenzoflores7990]

Sweet! Have another question if you don’t mind me asking. I just installed mine today and I’m having a problem with the idle. At first, my bike had a super hard time starting up. I did get it to stay on after a few attempts, but at low idle, the bike sounds like it wants to shut off. When I blip the throttle, it will turn off if I do that too fast. I took the bike on a short ride and it felt great while riding but turned off on my when I slowed to a stop then tried to speed up. Any idea what might be causing this problem?

[@RidinDad]

How long was the ride? I would say take it on a longer calm ride if you can. Sounds like it’s going to fix itself. What air filter you using?

[@thebrierebears7648]

Can oil cooler face up? Rotate 180? I'm lowered and stretched

[@RidinDad]

I suppose it can. You can fix your bike too though lol

[@tigerscott9788]

Any up dates? Is it still going strong? And can we get another vid on the grom riding thanks

[@RidinDad]

Hey, I’ve sold the grom so I cannot make another grom video lol. I didn’t use it much where I currently live so I sold it and put the money in to building out my Harley

[@XDImDylan]

Quick question bro, Installed this same exactly kit. Started it up and ran, it does struggle abit to start though? Also, it some times stalls when i just rev it alittle.

[@RidinDad]

I’ve never had the stalling issue at all. My only guess would be if it’s still a somewhat new install that it possibly takes some time even though the ECU is re-flashed it might just take some time for it to break in and adjust to your specific bike since they do adjust a little bit. And as far as the start up, yes. It will be sort of hard to start up especially depending on where the piston is in the engine when you start. Because it’s a larger piston and a higher compression then start. So all that means is that your battery is not as strong as it ideally would be. You can fix that with an upgraded battery like a lithium ion With some hire cold cranking amps and then what the stock battery is and it should start up really fast

[@XDImDylan]

@@RidinDad Okay awesome, ill go purchase a new battery here soon! I appreciate the help. What was your break in method?

[@RidinDad]

Pretty much the same as stock new. Just easy on the throttle no WOT for about 100 miles and just made sure the engine was completely warmed up every time I started it and as little idling as possible.

[@Mr11mrdk]

All head work, cam installation, valve adjustment should be done on bench. Then install.

[@RidinDad]

Why? That’s just preference. We adjust the valves normally with everything in tact at typical intervals. So just because you prefer to do it on a bench doesn’t mean that it’s wrong to do it while on the bike. Doesn’t have any affect on the outcome at all

[@justinhighdesertkeeper9251]

Can you post the part number of the new Honda injector ?

[@RidinDad]

Cannot. Comes with the kit. All inclusive. Didn’t buy it separately . If you go on their site you may find it

[@CaulkSlinger]

“Kit is spelled with a ‘K’ not a ‘C’ anyway” lmfao that made me sub right there 🤣

[@RidinDad]

LOL thank you man. I appreciate the sub!

[@tiller0515]

Same shit got me

[@RidinDad]

Glad I can provide the funnies LOL

[@thewheeltroll1833]

Just curious what you did for break in. Did you run a bunch a heat cycles or just let it warm up and ride? Thanks!

[@RidinDad]

So dhm told me to do several heat cycles and ease in to it prior to abusing it and that’s what I did for the most part. Easy riding no redline for about 3/4 trips totaling 100-150 miles. When I hit 200 miles I’m going to do an oil change again

[@joshpaz1]

Just found your channel. Have you had any issues with the grom that you might attribute to the big bore install since you posted this video?

[@RidinDad]

Hey man, glad to have you. That Mike has been sold for a while here unfortunately so I can’t attest to any true long-term potential issues

[@joshpaz1]

@@RidinDad dang man. Was curious how they work long term, I've heard both good and bad

[@RidinDad]

I’ve not heard any bad from anyone I e talked to if it helps

[@joshpaz1]

@@RidinDad yeah man, thanks!

[@RidinDad]

👊🏻

[@Spacecruizer203]

cool channel and bike would this kit work on a 125cc loincin pocket bike motor x18 mini ninja style

[@RidinDad]

Thanks man. And honestly, I have no clue. It is intended for a Grom, so if that bike has the same engine, then probably, but if it’s one of those Chinese engines that is typical on those probably not. But you should reach out to DHM to be sure.

[@thomas_tx2a]

When did you change the oil after breaking?

[@RidinDad]

I sold it. But I would typically say like 500-1000 miles depending on how you ride

[@Gokywildcats11]

Did you do the bore kit yourself

[@RidinDad]

Are you kidding me? This video is literally me installing the kit,.,

[@VitacciRocketGY6150cc]

💪🏻

[@RidinDad]

👊🏻

[@CriminalRip]

And what is it, the top speed with that 186cc combination

[@RidinDad]

This specific big bore kit is more for torque and not her overall TopSpeed. When I had it I’ve got around the same top speed. Low to middle 160s

[@wavergarage9098]

hi bro from 🇫🇷 France,come and see the cam racing shaft adjustment,With the engine preparations that I do at home

[@RidinDad]

🤙🏼

[@Mechanic83]

what’s did u set the valve lash at ?

[@RidinDad]

Pretty sure I specified in the video. But I don’t remember off hand

[@jodifreedman4859]

How much oil did you use?

[@RidinDad]

So I kind of just played it by ear. I don’t remember exactly how much I used. Obviously more than the typical amount because of the included oil cooler. I think I just added a little bit extra and then checked the level and went from there. I honestly don’t remember too much

[@nateflannery3202]

Any update on the reliability? Really considering doing this to mine.

[@RidinDad]

Haven’t had the bike in a while.

[@FishinFuel]

Hi, im about to install my kit, what oil did you go with?

[@RidinDad]

Same weight oil as stock. I chose the motul brand

[@FishinFuel]

@@RidinDad my local store just had valvoline 10w40 motorcycle so i got that. To at least lube up with for assembly. Ill have to get btter oil to fill with when im ready to start

[@RidinDad]

I don’t remember off hand but as long as it’s the same weight and made for motorcycles it doesn’t matter which brand you get

[@Itsmecam]

Would this work for a 2023

[@RidinDad]

I don’t know. I don’t have one. I would reach out to dhm and find out

[@chiaedwin]

How much top speed can get after this ?

[@RidinDad]

This kit is more for torque than it is for horsepower if that makes sense. The top speed that I got on my bike from this set up was in the low 60’s.

[@grampsaggyballs]

Love your videos on the grom. I just got one that has the same bore kit as you do. What type of oil and what brand do you use? I've looked everywhere on what weight and viscosity I should put in. I know the manual says 10w-30 but figured with this kit it would be different.

[@RidinDad]

Appreciate the watching man! And no, use the exact same oil as you would on a normally stock gram. Use the exact same thing the manual says. And brand is just a personal preference. I used Motu, but you can use whatever brand you want as long as it’s the same as what it calls for. As far as the amount because it has the extra oil cooler, you’ll just have to add a little bit more, but just add a tad more and just keep checking it on the dipstick to see exactly where it’s at

[@Mechanic83]

did u install the decompression lobe from the stock cam ? do u ever get a sluggish start up ?

[@RidinDad]

No and no

[@RidinDad]

You etched everything I did

[@SCFPV]

I've got the S1 cam in mine, and before I replaced the OEM battery, I would get rough and sometimes no start without putting it in gear and rolling it off the compression stroke. After the new battery, no issues at all.

[@Laga98]

My name is also Chris, I also bought a Grom and I already own a Harley lol, great minds think alike

[@RidinDad]

Lol there ya go. We should start a riding club for only chris’

[@Laga98]

@@RidinDad Yes! to my demise though it appears the product you are showing in this video is currently sold out. I will have to wait until further notice

[@RidinDad]

That sucks. It’s very popular for sure!

[@SCFPV]

​@@RidinDadDamn, then I'll have to change my name, unless I could become an honorary Chris. 😊

[@martin2692]

que velocidad final obtiene amigo? merce la pena ? dura mucho?

[@RidinDad]

English

[@triggerhappy52786]

Or you could have just hit translate on the comment that youtube gives you. He asked what is your top speed? Is it worth it? How long does it last or reliability?

[@RidinDad]

Didn’t have that option when the comment was originally posted. Otherwise I would have. I explained the top speed in the video or the follow up video. I think it’s worth it. Yes. And should last a long time yes.

[@samtarariverasanchez59]

Is the grom still up and running with that bbk

[@RidinDad]

I have no idea lol. I sold it a while ago

[@samtarariverasanchez59]

@@RidinDad but how it rode any speed bumps

[@RidinDad]

It handled speed bumps fine. If you’re asking if it bottomed out easy I never had an issue

[@TheGamersRace]

@@RidinDad I think he's asking if there were any dead or flat spots in the power.

[@RidinDad]

I gotchya. Makes sense. And nope. Very linear power delivery. No gaps at all that were felt on the butt dyno

[@atrain882]

Damn dude it’s almost like me and you were like I was just at the Honda shop yesterday looking at a brand new leftover red Honda Grom lol Let me know how they ride how is it is it fun I didn’t test ride it yesterday I just sat on it

[@RidinDad]

Haha. Get one man!!!! I love it. Very fun little bike and super cheap and easy to tinker with

[@atrain882]

@@RidinDad thinking very hard about it I’ll let ya know when I do 🤘💯 mans toy then my old lady can ride too She can’t ride none of my Harley’s haha 5’4 height

[@RidinDad]

Yeah she would be able to have some fun with it!

[@Ethan.s..]

2022 Grom is about to come out, might be worth waiting for.

[@RidinDad]

I’m not a fan of the 22’s

[@gustavopolanco6925]

Top speed?

[@RidinDad]

This kit is more for TQ and not for Top speed unless adding on head work etc. My top speed with this was about mid 60's but the TQ was immense. Incredible acceleration compared to stock

[@hamsaslots7837]

Kits are all sold out 😢

[@RidinDad]

:( everything is nowadays sadly. They have good customer service. I say shoot them an email and see when it’ll come back ready to ship

[@michaelandrade1213]

What was thw top speed?

[@RidinDad]

Around the same. But this kit is not mostly for top speed, this kit mainly improves torque a ton.

[@explodingmonkey44]

What exhaust is that? What is your top speed?

[@RidinDad]

I have a video just after this on my top speed setup with different gearing too. Don’t remember off hand as I haven’t had this bike for about a year now. As far as exhaust there’s also a whole video on that. There’s a playlist devoted solely to this grom build on my channel. The exhaust is a Vance and Hines hooligan

[@trevorf1838]

From what it looks like on your channel, you installed this kit and then sold the bike? What happened? Why'd you sell?

[@RidinDad]

I had the bike for a while after this kit bit was great. My work schedule changed and gave me much less time to ride. I couldn’t really ride both bikes like I wanted so I chose to sell the grom and do a lot of upgrades to the Harley. I do regret selling the grom though

[@Gallaxyz]

will these work on them clones?

[@RidinDad]

I have no clue. I don’t know much about the clones because I have no personal interest in them. I would assume not due to the slight differences in the motor setups. If your shoot dhm an email I’m sure they can give you a better answer

[@Gallaxyz]

@@RidinDad thanks alot for your help really insightful video keep it up

[@RidinDad]

My pleasure man, thank you!

[@andrewwilliamhorton789]

You forgot to loosen cam chain tensioner

[@RidinDad]

No I didn’t. I did it and I put a subtitle in saying not to forget to loosen it

[@andrewwilliamhorton789]

Why didn’t you TORQUE head bolts...another very important step

[@RidinDad]

Didn’t feel it was necessary on this specific bike

[@RidinDad]

I talk about that too

[@ProDigit80]

24:00 You'll probably need to add some extra oil for the cooler.

[@RidinDad]

Yeah

[@gamingryan5809]

How much oil do u run? How did u find out how much and do u use 10-30 motorcycle oil.

[@RidinDad]

Use the same oil you normally use in the grom. And I don’t remember the exact amount. A little more than normal. Just keep checking the dipstick to see the oil level. Gotta start the bike a little too to have the oil pushed in to everywhere

[@thebrierebears7648]

Not for fuel injector, use Vaseline on oring

[@RidinDad]

I prefer not to use fuel injectors or carbs. I just hold a lighter to the intake and hope for the best

[@SCFPV]

Wouldn't waste time here, read his replies to everyone. 🤷

[@armdrop101]

U blow the crank and rod outa it yet??

[@RidinDad]

No

[@armdrop101]

@@RidinDad feel like I have to rod my grom around all over. If it had some power I don't think I would be so hard on it.

[@RidinDad]

You can still be hard on it with a big bore kit for sure. There’s tons of guys running it insanely hard with no issues. But it is hard to beat the reliability of the stock configuration for sure

[@loganzehr4399]

What oil do you run now with the big bore kit?

[@RidinDad]

Same oil as the manual says to use with the stock engine.

[@loganzehr4399]

@@RidinDad ok thank you so much have a great day!

[@RidinDad]

You too man no problem

[@theslowride4948]

Grom nearly looks like a normal sized bike with you standing next to it Chris 😂

[@RidinDad]

Lolol I’m not very tall man. I do what I can!

[@martin2692]

top speed???

[@RidinDad]

I have a video a few past this one I go for a ride with it and different front sprockets too

[@Mechanic83]

how the dhm kit running now ?

[@RidinDad]

Sold the grom a while ago

[@Mechanic83]

@@RidinDad did u have any issues running this bbk ? i installed mine but has hard start issues and i have to give it some throttle to get it started when cold is that normal for this kit ?

[@RidinDad]

No issues at all for me. How long has it had those issues for?

[@Mechanic83]

@@RidinDad well i just bought the bike few days ago and previous owner install the kit , i just did the ecu and tps reset and all is good now 🙏😀

[@RidinDad]

That was gonna be my next suggestion. What are the chances it was never tuned or had the ecu replaced? Before mine was corrected it started very roughly

[@coreygraham1160]

Assuming you had to get a tuber after that

[@RidinDad]

What?? Is that a typo and you meant tuner? If you meant tuner, did you not watch or listen to the whole part of the video where I go over and then later on install what’s included in the kit,....the flashed ecu?

[@coreygraham1160]

@@RidinDad sorry, i had a rough day and fell asleep in a part of the vid for ab 5 min😅 sounds good

[@RidinDad]

LOL all good man, completely understandable !

[@zoltancsorba7499]

Király

[@RidinDad]

??

[@zoltancsorba7499]

@@RidinDad king👍

[@RidinDad]

Ayyy 🤙🏼

[@coreygraham1160]

Do you need a tuner after this?

[@RidinDad]

Did you watch all the video? The kit comes with a pre flashed ECU and/or a flash for your existing ECU if you send it in. I'm pretty sure I talked about the options but I for sure talked about the option i chose with the brand new ECU

[@coreygraham1160]

@@RidinDad yes just bought it

[@RidinDad]

👍🏻

[@mitch5114]

@@RidinDad BOOM ROASTED

[@301speed]

Wrist pin

[@RidinDad]

Huh

[@Myrussell67]

Holy crap that was painful to watch. I know it’s been two years. You need to invest in a set of sockets. Also every time you install new parts they should be cleaned. You should have removed the piston and cleaned the bore and piston. Then dip the piston in oil before putting it back in the bore. Oil the wrist pin ect. Do you own a torque wrench?

[@RidinDad]

I do own a torque wrench. I also own a ton of various sockets. Thank you for being so concerned about my tools though

[@snapdrag141]

Anyone else put their cam in the freezer first?

[@RidinDad]

It’s unnecessary really with this guy. It slides right in when everything lines up. No pushing necessary

[@BikesBeardsAndBrews]

that's not a Chevy LS1 engine swap.........I'm sooooooooooooooooooooo disappointed

[@RidinDad]

Lol I don’t have a welder which is definitely required

[@dennismau9103]

What is the point for few HP gains and maybe 80mph? You now have $4800 in your Grom. Just buy an MT03 for $4800 and you have 35 HP and 110mph plus, better handling, braking and a much safer bike.

[@RidinDad]

It’s about the fun of it. It’s fun working on bikes to some of us (me). And it’s a completely different feeling going 70/80 on a grom than on a full size mt03 or ninja 300 etc.

[@charlesdada6434]

At 220 pounds, a Grom is light enough for a single average man to pick up. At 373 pounds, the MT03 is beyond the lifting abilities of nearly everyone except elite athletes

[@RidinDad]

One of the many differences and pros for sure!

[@snapdrag141]

I admonish you sir.

[@Jq__176]

Whenever i see this the only thing to think is they’ve just never spent a little time on one once you do you understand

[@martymcmannis6581]

Sleeve? Wrist pin. Sleeve is on your shirt

[@RidinDad]

Thank you! What would I do with out you ??? I bet all your videos are amazing huh…

[@andrewwilliamhorton789]

Why didn’t you show RING placement on piston....VERY important step

[@RidinDad]

Because as I stated.......this dhm kit comes pre gapped

[@Rob.653]

@@RidinDad lol you have the patience of a monk.

[@RidinDad]

Lol gotta choose your battles

[@andrewwilliamhorton789]

@@RidinDad compare your video against Partszilla Grom engine rebuild....big difference in detail which that is what makes a great engine builder....now pick your battle....I rest my case on this matter

[@RidinDad]

Lol ok man. You commented about ring placement. On the kit I installed I explained that the rings were pre gapped & pre installed. Partzilla installed a completely different kit. I rest my case on this matter

[@geraldtakala1721]

Music sucks but nice work

[@RidinDad]

Copyright free 🤷🏽

[@pbshooter100]

@@RidinDad I agree with gerald I could have done without the music, no noise would have been just fine but in any case at least it wasn't k-pop or something like that lol. Great video btw, love that you took the time to show all the detail which is a big help. Just curious did you get the speed increases that you were hoping to get from this kit?

[@RidinDad]

Thank you and as far as the music goes it’s like a 1 to 10 ratio of people who don’t like it versus people who want me to keep it. So it’s not going anywhere. And yes. This kit specifically is more for torque than it is for a high speed especially with the stock throttlebody and valve head. If you increase to a four valve and a Bigger throttlebody you get a much bigger increase in speed anyway but I knew going into it it would be more for torque which is definitely helped a ton with

[@user-hy8hi7gr6n]

“Big Gore Kit”.. I accidentally bought the Al Gore Kit and it just came with an ad for bicycles. What a letdown

[@RidinDad]

Are you trying to make a joke ?

[@user-hy8hi7gr6n]

@@RidinDadYes🤨

[@RidinDad]

Ah lol