How To Install 7G T-Belt Transmission on 4 Stroke Motorized Bicycle

[@earlgarcia9824]

Personally I wouldn't use thread lock on those Phillips head screws for cover just in case belt adjustment is needed out on the road as with these kit built bikes you'll probably need to adjust something sooner or later ,good to have a tool bag at the ready, love your videos always informative. 👍

[@smogged4794]

I believe there is a large flat washer that goes on before your clutch. Great video Hugh Thank you.

[@adrianroberts1469]

Thanks for the info, realized the person i bought it half built from forgot the woodruff key. made a new one with a screw, file, saw and vice😎

[@fishsquishguy1833]

Just visited your site and just had to say that you build some gorgeous machines! Im a car guy but have always loved the bare bones beauty of the early motorcycles and especially BTRs. I'm planning out a build for my son right now but after seeing your work I'm inspired to build something for myself as well. Thanks, Jim

[@DavidHolmgren-vg7yz]

Thanks for the great video... It does a good job of showing how the transmission works and is installed. Thank you very much.

[@ex-engineer6657]

A very light coat in and out of that o-lite bushing with ND (non detergent) 30w oil will make it last longer. As maintenance, when changing the motor oil also remove that bushing and clean it with 30w nd oil and a green Scotchbrite. It's a porous bronze bushing that carries oil.

[@adamcolbertmusic]

Good point, I was reading about that bushing, that automotive companies actually vacuum seal it in oil first to get oil into the pores. What I did is put it in a small container of motor oil and let it sit in the freezer over night. It's kind of like marinating something in the fridge.....cooling it makes the air in the pores shrink, which causes a (semi) vacuum effect that pulls the liquid into the pores. Of course, I let it come to outside temperature before reinstalling it. And before doing any of that, I cleaned it with acetone and a paper towel and let it dry. Fortunately, that piece is very quick and easy to access, so regular maintenance isn't even a hassle!

[@JB-be7yr]

It's a spanner hook wrench. Great build vid.

[@jerryb1234]

Thanks for that good look at the clutch, and the information on the shaft size/key-way, I'm sure nobody else wanted to see/hear about any of that anyway, it's just my dumb luck, I think I'll find some good clutch material, and start rebuilding my own damn clutches, too hell with ordering a new one, lol

[@lincolnmann9281]

hey, great video, I was wondering do you know where i could get one of those bronze shaft sleeves. mine has disintegrated

[@earlgarcia9824]

Any videos on 4G 100t/20t aftermarket chinese belt drive transmission Huasheng 49cc 142F tapered shaft ,maintenance and tips to prevent problems?

[@renowntwo]

Do you upgrade the spark plug? If so , which one do you recommend?

[@HughesMotorized]

Here you go: amzn.to/2M9I08p

[@zekenoscooter_8608]

Could you tell us please the upgraded spark plug? After 4 short months, Amazon has changed saying the page and this link doesn't work.

[@N9197U]

@@zekenoscooter_8608 it works again now if you're still interested.

[@davenjoni]

You're a good teacher!

[@NotorK0]

Can you make a video showing how to use this thing and how it works

[@JackPoet-eb4ur]

My transmission wheel nut is damaged. It is bent. I pull an aluminum trailer. I have to replace the nut that's got the chain sprocket only. Is this the fix for this? When I pedal the bike. I have been able to compression start. Is this part available to order? Thank you for any advice on this.

[@erix956]

Now they have 8G transmission. Do you know what the difference is?

[@stanleydenning]

Wouldn't be beneficial to lubricate the bronze bushing before assembly ?

[@HughesMotorized]

YUP... soak in oil

[@Halfzipp]

Great video. Where can one get one of these 7G kits? I didnt see it on your site. Thanks!

[@dominic79474]

how reliable is the transmission because I have a bike berry transmission and I have to change the flyweight every-week. I ride my motorized bike about 50 miles a day because I use it for work, but it is not reliable at all. Every week I have to order a flyweight. I put about 300 miles in the motor weekly. So do you think that transmission won't wear the pad in the flyweight as fast. Because the motor does not give me any problem at all. It is just the damm flyweight man. What do you recommend?

[@HughesMotorized]

+Josue Recio The sealed chain drive transmissions are not reliable at all. Best to use a motor kit w/ the T Belt transmission

[@BBCurve9300UserDJL]

@@HughesMotorized I totally agree with you about that cheap crappy sealed chain drive transmission is total garbage. Can you tell me where I could buy the t-belt transmission that you got here eh?

[@HughesMotorized]

@@BBCurve9300UserDJL That one was a Gasbike kit... I use eBay kits now or Amazon

[@chrisstokley7687]

weird but true.. soak the bushing in oil.. omg/works.. #1 thing!!!!! take the kit chain and throw it away ! !!!! mine grew 2 inches first block /when jumped off- bent the transmision shaft! thick new chain/ awesome!!! still not bought the thicker idle + thicker gear... still works well :>)...150 miles .. chain grew 1/4 in.. lol .. luv it!

[@jacobalexander6281]

So this would give the motor bike a couple of gears to shift through right?

[@xthe_moonx]

whats better, the belt trans or the chain trans?

[@zoologicalmilitia2241]

Does that belt go on a certain direction? Looks like the grove point at an angle.

[@oldkokitsum4022]

Greetings, Have you ever seen a clutch shaft that goes through the frame to drive a jack shift kit for a 4 stroke??

[@jonneilsmyth9107]

im in the same boat hate 2stroke but love manual clutch idea with jackshaft love 4sroke hate the crap auto clutch...thats the cure something needs mass produced or machine made to link the 2 together but nobody has the brains to see its a all round winner in noise efficencey lower revs less stress and strain on 4stroke engines and clutches. im afraid its a diy atm sadly ps if you find before i do this cure get back regards

[@scottishwarrior3438]

It sucks they don't sell those kits anymore, I'd get one to replace my current 49cc setup.

[@ronaldcheatham7242]

Thanks bro.

[@ezl7052]

Real nice video on installation!

[@thxcuz]

I heard the 7g wasn't very good. It's cheaper than the 4G but the poor reviews kept me from buying it. What's your feelings about the 7g? Thanks for all your helpful videos

[@HughesMotorized]

+mark miller I like it. the bearing i the transmissions were crap on the 4 G

[@melee401]

@@HughesMotorized I have an ancient 4-G whatever. Don't like the idler sprocket, the new ones have the idler on the big trans end shaft bearing. Thinking about changing to this or the newer 4-G. Want a 5:1 ratio so I do not have to change out rear sprocket and an 11 tooth trans output sprocket

[@HughesMotorized]

@@melee401 Contact Duane at ThatsDax he might help you on finding what you need

[@melee401]

@@HughesMotorized Oh I have dealt with Duane, I seized one of his super 49s by obeying the damned dip stick intread of taking it all the way to the top. I ran one of his belt drive units for 500-600 miles or so before the bearing were all shot. Went back to the 4G, might do a newer 4G so I can get rid of the idler sprocket, we'll see. I'm not mad at Duane and not after a refund, no way the price point on his belt drives left room for the bearings I priced for it. It was a rough ride getting into 4 stroke motorized bikes. If I got anything from Duane it would be one of those spiffy KX 50 or whatever 2 stroke engines he has. 9 HP sounds about as radical as I am interested in. Gotta have a better clutch than the China Dolls.

[@Bobs-yer-uncle]

Do you know if anyone still sells this transmission kit thanks

[@fortenza]

HoustonMotorized Hey! Well done video! Where can I find that transmission kit? Thanks!

[@artswanson5301]

This is really nice. now where do you get this trans from????

[@HughesMotorized]

It's the old Gasbike 7G transmission. Now they sell the 8G

[@artswanson5301]

@@HughesMotorized 8G thats cool. You still didnt answer my question. Who sells them?

[@HughesMotorized]

@@artswanson5301 I did answer... Gasbike... however, here you go: www.gasbike.net/collections/4-stroke-bicycle-engines/products/knight-racer-8g

[@HughesMotorized]

@@artswanson5301 however Gasbike is out of stock. Here's a cheaper one in stock : amzn.to/2zXCYFS

[@artswanson5301]

@@HughesMotorized Oh sorry i didnt know gasbike was a sight.

[@robertsmith5323]

seems like you have that belt a little too tight. it appears that you have it so tight that you have to force it so spin. yo. I have a ton of exp. with cent. clutches, and they DONT like being tight!!! the bronze sleeve between the shaft and the bell will burn off whatever lube is on it in seconds,.. and then the sleeve itself will start raising holy hell in there. sometimes they break apart, sometimes they just get so soft from being glowing red hot they deform and fail. that bronze collar/sleeve needs to be lubed at the LEAST every other time you plan on using it----any clutch manufacturer will say the same. I found out about it because my friend wanted his minibike chain tight at all times and it wore down, melted, came apart, and seized and $30 bucks was toast in a week. manufacturers want that collar/sleeve lubed. usually they recommend daily lube. so ill be installing mine with the ability to get in there and lube it without too much undue heartache. a minibike you just lean over and hit it, this is a tad more involved but not a deal breaker. never, ever use more than two drops, and always use clean motor oil to do it NOT penetrating oil like wd40 or 3 in 1. rock on bro.

[@robertsmith5323]

+robert smith see how the bell is reliant on that sleeve to hold it at the proper flatness for lack of a better word,.. if that sleeve wears, the bell wont ride flat anymore, and the clutch doesnt grab like it should because its not flat to flat anymore. after that,.. complete failiure isnt far off. when I buy a clutch I always try to get one that they have an extra sleeve for, and I get at least one extra. even with religious lubing and perfect alignment, they are still the weak point and the first thing to wear out.---I used your video to build my first 2 stroke bike, and im using your vids on 4 bangers to build my next bike in a couple weeks. understandable, and thorough. well done, sir.

[@robertsmith5323]

+robert smith one final note on those clutches when used for a belt, they get hot. the shaft/sprocket area where the belt rides gets the hottest. I mean burn your finger hot. think about that thin, delicate rubber belt sitting stationary on that almost glowing hot belt sprocket. I can already smell the rubber burning from here. you want the coolest running clutch you can possibly have with a rubber belt. getting that thing hot and parking it is going to create a weak spot on that belt, maybe even burn it in half!!! bummer? you bet. think about ways to let that baby cool off before you hop off and walk away............you might be smelling burning rubber real fast and im not talking about the good burnt rubber. I been watching videos about 4 stroke builds on youtube for weeks, trying to pack as much info into my head as possible before I jump out the window, and I haven't heard a SOUL mention ANYTHING about clutch heat and what It can (and will) do to a 3/16 inch thick Chinese rubber belt. that seems VERY odd.

[@RowdyRide]

You think this type of trans or another like the 5g would be good for a long ride. like a 800 mile ride over several days?

[@erics9754]

Better tight as it stretches a bit over time.

[@HughesMotorized]

THER ya go. But ya you don't want it too tight

[@marcs4091]

That transmission looks like it also may bult up nicely with the Lifan 79.5cc 4 stroke. What do you all think? And you wouldn't need that bushing cuz the shaft is slightly longer.

[@HughesMotorized]

Never tried

[@terryjoe323la]

Hey it might be years later but this is still a nice video what is the part number of the transmission belt I'm looking for that

[@stevenball3845]

I am As Well. Did you ever find out the belt size?

[@stalion456]

Hi thank you for your videos where can i get one of thoose clucth kits please? and do you ship to Uk

[@HughesMotorized]

Sorry no shipping to the UK.. I suggest you try eBay

[@suprememasteroftheuniverse]

@@HughesMotorized How to change it to a torque converter?

[@kght222]

where can i find those clutches? i have had 4 of these engines but my 4th one uses a through shaft with a keyway like this and i don't know what to look for or even if amazon has them. my other gxh50 clones like this engine used a different crankshaft with a tapered clutch (the outside of the hole in the middle of the clutch is smaller than the inside). can someone please guide me to a clutch that would fit on the type of crankshaft shown in the video?

[@HughesMotorized]

Gasbike has the clutches for the straight shaft. www.gasbike.net/collections/4-stroke-parts/products/4-stroke-clutch-flyweight-for-5-8-straight-shaft-engines

[@kght222]

@@HughesMotorized thanks, now i know what to look for. found one.

[@larryshaver3568]

i just watched someone install a torque converter on an engine, is this similar?

[@HughesMotorized]

Not really. The job of this is to gear down the drive to provide useable power at lower speeds. Spin the clutch 5 revolutions and turn sprocket out 1 time. Otherwise you'd need to peddle bike 30mph before giving it gas or burn out the clutch

[@amealnet2495]

Would a non melting bearing grease help extend the life of the bushing flange?

[@HughesMotorized]

Soak it in Oil, however I've yet to see one fail

[@saki2789]

Please, would you kindly tell me the size of the crankshaft shaft of the engine in centimeters or millimeters.. I have a Honda Gx160 engine and it does not have the same crankshaft measurements to place the variator that is specified in the video. Thank you.

[@MBMJIFF7200]

whats the long bar sticking out of the clutch

[@HughesMotorized]

Trick question? No long bar anywhere

[@joeMW284]

You ever have trouble with vibration with this transmission? The large sprocket on mine wobbles a bit and constantly causes the bolt to back out, worsening the vibration even more. You ever have this problem? It's driving me crazy.

[@zekenoscooter_8608]

Yep. Snapped 1st tranny in half. Bought another ($130. $40 more for the original kit) . Second one is doing exact same thing you saying. Wobble. Back out the bolt. (Hey HS, how about some left hand threads on the pulley going counter clockwise, hmmm?). Hey Joe, if you ever read this, what'd you do about the little spacer/washer (looks like a top hat?)

[@joeMW284]

@@zekenoscooter_8608FYI- it ended up being the motor that was causing the vibration. Something was not right with that thing. However, the reason the 100t was wobbling was because the spacer that goes on the shaft behind it wasn't cut straight. I replaced it with a stack of washers and it's all good now. Been running for a couple years with no problem. Hasn't come loose or had any need to take it apart in a very long time.

[@Hoosirdaddy]

yea we see the vid but were to buy the kit

[@HughesMotorized]

Gasbike

[@llorens1027]

best video so far thanks

[@larryshaver3568]

I'd put a nylon washer under the screw that goes in the side

[@BrutusJones]

what about a quality chain tensioner? Any way to mount that on the engine?

[@TheMotoboyonline]

muito bom seu dicas imprescindíveis para motores 4 tempos tbelt

[@noeltheshemale]

is there such thing as a manual clutch for the 4 stroke bike engine? Or are they all centrifugal..

[@HughesMotorized]

+noeltheshemale I only know of centrifugal 4 strokers

[@noeltheshemale]

hows the initial engagement when you give it the gas? Having the centri. clutch on these engines is the only thing keeping me form checking one out.. your videos are very helpful

[@zoologicalmilitia2241]

Good video but mines different I bought from GasBikes for a 212 cc Predator can you do a video on that style transmission, please?

[@HughesMotorized]

+Zoological Militia I would never put a 212cc motor on just any bike. You will crack a frame for sure. best to only use and old school 40s to 70s beach cruiser or a Felt bike. I might do one

[@biohazard9638]

HoustonMotorized Would a steel frame cruiser 1 Electra be a good bike for the 212?

[@zekenoscooter_8608]

I know. 3 years old. But I had to. I had an original Electra before they were bought out by (I think it was) Kent. Big stretched pedals forward. Pretty mint too. So big I had to modify the mounting plate setup to be BIGGER! Mounted so low I had to run a 26t center sprocket. Bike came out beautiful. 6 months and I snapped the seat stays right behind the seat. Mind that this was an aluminum frame, but it was also only a 49cc 4 stroke. No. I would not put a 212 on your Electra. Steel or no steel. A consumer retail bicycle will break under those kind of forces. Say again: WILL BREAK. I'd suggest purpose built or, at the very least heavy modification. Can you attach pics to these comments? I'm a try. Look around, I'll try to get pics up somewhere.

[@dkpopatop6251]

So how do you remove the key from the clutch once its installed and you need to replace the clutch?

[@HughesMotorized]

check out my facebook group and post pics of clutch in question. The one on this video should easily come off once you remove the screw into the shaft = facebook.com/groups/hughesmotorized

[@scottbennett4329]

Where can I find that transmission so I can put on my motor......... I have a samger motor I got it off Amazon prime

[@scottphillips2420]

I already have the motor where I get the transmission at???

[@HughesMotorized]

Gasbike or Bikeberry

[@alanballard7466]

Nice video man very informant great job,

[@amealnet2495]

Where Can replacement belts be purchased ?

[@HughesMotorized]

Here you go: ebay.to/3bKTrML

[@motoristchamblizi8463]

Do those mounts fit Briggs engines?

[@HughesMotorized]

No... need to fab one to fit

[@amealnet2495]

How does this aftermarket belt transmission compare to stock kit transmission?

[@Bull3tBikes]

Ameal Net much quieter, than a chain drive, but get the 8g or the 4G

[@Bull3tBikes]

randy s the grubee 4G is a better setup than any chain drive out there, I have a 7G and a 4G

[@porchclint2821]

were do i get it

[@amealnet2495]

Can the belt be replaced when needed? If so where can they be purchased?

[@HughesMotorized]

You can get belt here: ebay.to/2lYZI0X

[@nostalgiaholic4874]

What if you don’t have the hook Tool to turn the offset

[@desireytaylorchannel4639]

Could this be mounted on a trike meridian?

[@HughesMotorized]

Yes but it's heavy and the wheel will flop over when parked

[@willamsepe4962]

Yes hello I need to know what this number I found that belt so I can put it on my bike it's a 7g t belt part number

[@earlgarcia9824]

Some of those engines have tapered shafts .

[@williamsporing1500]

What is the benefit of this set up?

[@HughesMotorized]

Transmission drives the wheel. This vid is about a particular transmission

[@heisrisen6898]

where can i get this engine and kit whats the model#

[@elithomas4909]

hi is their anywhere I can get just the transmission I found kits with the transmission and motor and everything but nothing with just the transmission

[@tomtom4081]

Ebay

[@TulioGreenWizard]

what is the advantage of this 7G T-belt, is just simmilar to any transfer case you can use in 4 stroke engines with a centrifugal with a fixed reduction gear box... but uses pulley and belt instead of a chain? or does this variates like a small cvt or2 stroke mopeds transmission? Well, ir seems like first deduction anyway.

[@HughesMotorized]

The transmissions w/ the internal chains fail early and often is my experience

[@TulioGreenWizard]

so it simply does not variate at all, it is a fixed ratio. (?) the only thing that ''variates'' and is ''automatic'' is the centr clutch, the only advantage in using this transfer cases instead of simply direct drive at centrifugal is that would have this fixed ''low gear'' resulting in a better torque...i guess

[@HughesMotorized]

Correct. Clutch direct belt drive to chain

[@jonny6758]

will this belt drive work on the 142 f engines 49cc ??

[@HughesMotorized]

Yes, only for those w 5/8" straight shaft. NOT the tapered shaft ones. ThatsDax sells a belt drive tranny for tapered shaft

[@marcs4091]

I would go with the G8 transmission instead. For one reason only, the clutch is alot less temperamental, with the 142F.

[@angelamontoya1630]

Can you change the belt to chain

[@HughesMotorized]

You would have to machine a sprocket to fit on the clutch bell, weld it and mate it with the appropriate size sprocket to match the larger pulley. Cost more than the kit does I'd guess

[@martinbyrne6643]

Bolts not screws ‘ Allen cap bolts ‘ get your terminology right ‘ people are watching and they want to learn ‘ good video well presented and excellent quality

[@HughesMotorized]

NOPE.... Lots of varying opinions on that one. I used to work in the Assembly Engineering at an electronics manufacturer wayyyyyyy back the the day. You ever hear of an "Allen Cap Screw or a Socket Head Screw?" McMaster Carr has and they sell them. www.mcmaster.com/allen-cap-screws/socket-head-screws/ Here's the US Customs definition of a screw: 'A screw is an externally threaded fastener capable of being inserted into holes in assembled parts, of mating with a preformed internal thread or forming its own thread, and of being tightened or released by torquing the head.' A bolt: 'A bolt is an externally threaded fastener designed for insertion through the holes in assembled parts, and is normally intended to be tightened or released by torquing a nut.'

[@martinbyrne6643]

Hughes Motorized ‘ good technological answer ‘ and well researched ‘ we will leave it at that

[@HughesMotorized]

@@martinbyrne6643 However, smoked a lot of weed and consumed a lot of beer & tequila over the years and I do often have moments of doubt if I'm mixing it up. So, I'm good in the distinction for at least a day or two

[@pianodoesminecraft]

What do the g's stand for?

[@jburr36]

G = "God Damn these are expensive"

[@pianodoesminecraft]

+jburr36 heheh

[@jburr36]

I just ordered a 7G kit 15 minutes ago. I'm going to do a teardown and cleanup of my 4G engine in the next few weeks.

[@cjtechrepair4545]

have a unit with a bad bronze sleeve and wanting to do bearings, anyone know sizes that can be retrofitted?

[@zekenoscooter_8608]

G is Generation

[@davidpineiro7269]

Thank you for the video...

[@learliguzman9308]

Could you please tell me the measurement of the belt. I recently purchased one online 550 5M but it does not fit at all. Where may I one that does fit?

[@HughesMotorized]

gasbike sells them

[@stevenball3845]

What is the measurement of that belt??

[@richardprince5758]

Can you mount this Engine on a "Mountain Bike 26' without having to Spend 3 hrs. modifying the Mount ? thanks

[@mattysfishingadventures]

Nope sorry was hours of work to get one in my 29inch

[@Assasinnationtv]

No way

[@gerardjones7881]

now we know how to use a screwdriver, what about a demo in use.

[@michaelhigginbotham5952]

Will it fit on 80 monster

[@HughesMotorized]

No.. You can get one from Gasbike

[@copacabana421]

very nice ......

[@BrettWae]

That fucking mosquito.

[@arthurthomas6874]

How can l get one phone number

[@troyna77]

loctite can save your life.

[@theonecommenter]

Stop screaming lol