Driven clutch is on backwards, It's opening up when you take off, it's supposed to open at higher RPM's. The 30 and 40 series clutches can not be used together.The 30's series clutch uses a different belt than the 40's series. 30 series clutches are asymmetrical, one side of the inner clutch where the belt rides is almost flat and the opposite side is tapered. The clutches have to be installed with the the tapered and flat sides lined up with each other. The belt has a flat side and a tapered side and has to be installed in the correct direction. The 40 series clutches are symmetrical, both sides of chlutch halves have a taper so the clutches can be installed in either direction to line up your belt. The belt can be installed in either direction unless it is marked directional. The driven clutch spring will need to be replaced with a forward or reverse spring when reversing the direction of the driven clutch. Hope this helps someone out.
@username-mk8gf4 ай бұрын
That looks so OEM the way it fills out the frame.
@jamesbuckley9078 ай бұрын
I've got a Baja Warrior MB 200 that I Vtwin swapped about 2 years ago with almost 3K miles on it. I swapped out the carb to a 34mm round slide off of a Honda dirtbike after fabicating an intake manifold adapter (required cutting ithe center section out of the factory intake and replacing it with my fabricated adapter ). It dropped a valve (the stock valve spring retainers ar cheap stamp steel and at sustained RPM over 4K the valve and keepers can pull right through the retainers ) . Since I had to replace a valve I went ahead and pulled both heads, did a mild port and polish (I used to do headwork and run a flow bench for a living so I kinda felt like I had to) and then replaced the stock retainers with machined steel ones and swapped out the soft stock springs with some 25 lb springs to eliminate valve float that was occurring around 4500 RPM. The only drawback to the heavier springs is it gets a bit noisy, sounds like loose valve lash but its not (the stock cam has a specially ground profile with "Quietning Ramps" to allow nearly silent valve train but they are only effective with the very weak stock springs) I also removed the factory compression release mechanism entirely, because I was paranoid about it possibly coming apart during sustained high speed running. I'm running a cluth that I made using parts fom a Chinese ATV centrifugal clutch and parts from a regular 40 series centrifugal clutch, as the cheap 40 series centrifugal clutch would slip horribly if I used over 1/4 throttle below about 25 miles perhour. I was running a 14 tooth clutch driving a 24 tooth sprocket on a jackshaft, on the output side of the jackshaft a 12 tooth driving a 32 tooth rear wheel sprocket. This was good for 79 mph while still accelerating extremely hard. I've since replaced the 12 tooth to an 18 tooth to reduce RPM at a sustained 62-65 mph cruising speed. If you're interested you can see a 36 second video of me and my minibike on my KZbin channel, Buck Kowalski, which is my other KZbin account. Its a cool little video.
@williamblair27912 жыл бұрын
You have to make sure the belt in lined up perfectly or you will keep chewing the belts up ive had the same belt on mine for 4 months still looks good
@sspence65 Жыл бұрын
That and don't run a flat side belt on a taper.
@kristianstaton6696 Жыл бұрын
👆 is right. Add some washers behind the driver and that will bring it out even with the driven. You shouldn't have a problem after that aside from that just run a tapered belt.🤘
@csrgodly11603 жыл бұрын
i can’t wait for it to be finished
@crazybuilder14123 жыл бұрын
Me too the new clutch is on the way
@Tampaboys3 жыл бұрын
you should try a 40 series and make sure your drivers are lined up i used a 40 30 on my big trike forever worked great
@crazybuilder14123 жыл бұрын
I did in part 4 and it does work good
@caydenspianostudio188510 ай бұрын
You even got a bricknose! I use to have 2. One blew a head gasket and two weeks ago, the other caught on fire and most of the truck melted
@billwilliamson98423 жыл бұрын
One of the nicer v twin mini bikes I have seen. Looks like all you did was heat and "clearance" that top tube to clear the valve cover to fit that v twin in, is that right? I have a couple v twin projects in the works, one is a mega moto mega max frame and the other is a old manco 3 wheeler.when you get that 40 series on that thing is gonna really rip.
@crazybuilder14123 жыл бұрын
I did clearance the frame but I did beef up the frame around it
@ardennielsen37613 жыл бұрын
those V-twins have a good price tag? I found it cheaper to fix up a 1981 XJ650.
@crazybuilder14123 жыл бұрын
I just bought another 18 HP v-twin on Friday for $250 just got to watch for them.
@whiteboysteve44743 жыл бұрын
I know that thing vibrates. My predator 212 makes the same power. Lighter no vibration same power. Still awesome though. I think I'm about to ride my mini now
@crazybuilder14123 жыл бұрын
Nice just want you to realize that I'm getting ready to upgrade that engine and it's probably going to be pushing more along lines of 30 horsepower and it really doesn't vibrate too bad. It's the front tire it makes it vibrate.
@crazybuilder14123 жыл бұрын
This engine makes 18hp 26ft lb of tourque at 3600 RPM stock. And currently it has no governor and I allow it to rev to damn near 6500 RPM so I have a pretty damn good feeling it's making about 22 horse at about 30 to 35 foot pounds of tourque. And that's not even modded yet!
@whiteboysteve44743 жыл бұрын
I just bought a air cooled yz250 motor. After I rebuild it. Going on my full suspension doodlebug
@heavystarch1002 жыл бұрын
Same power? Naw... I own a Ghost and just rebuilt a 212 hemi, they aren't close to a v twin Predator stock.
@whiteboysteve44742 жыл бұрын
@@heavystarch100 I have stroker crank. 72mm piston. 28/32 big valve head. Ported polished and shaved 65 thousandths 308 cam 60lb springs. 1.3 ratio rockers. 28mm flat side carb makes 20.5 HP. Lol ghost motor is a joke. Someone who is dumb enough to waist $300 on a ghost motor is a moron that clearly doesn't know sh.. that's why you would be dumb enough to buy ghost motor
@wilde.coyote66183 жыл бұрын
Nice work
@crazybuilder14123 жыл бұрын
Thanks
@abdulkamau28623 жыл бұрын
Have you ever thought about using a mikuni carburetor
@crazybuilder14123 жыл бұрын
Yes I do plan to dual carb it in the future
@crazybuilder14123 жыл бұрын
But with mikuni's being over $200 a piece I can't afford it right now
@davidjessee7701 Жыл бұрын
Shouldn’t be no need for a pulse pump for the fuel…. The tank should gravity feed the carb nicely
@roypatterson9910 Жыл бұрын
Guess I'm not mistaken, it appears you have the belt on backwards, but I might be wrong as it's hard to tell from here.
@crazybuilder1412 Жыл бұрын
I have since changed the entire torque converter. But I had a 40 series ( double taper \_/ ) primary clutch and a 30 series ( single taper l_/ ) secondary clutch with a 30 series belt. So completely wrong set up but hey it worked for testing.
@trappinout18 Жыл бұрын
very quiet. nice sounds
@rgbigdog Жыл бұрын
Another reason your belt is tearing up your pullies are not aligned. You need to align the front pully to be even with the rear pully. You do this by putting shims on the crankshaft behind the front pully until it is even with the rear.
@Slicknewt3 жыл бұрын
Whats the top speed though? Seemed like it was only hitting lile 30 max while you were filming
@crazybuilder14123 жыл бұрын
It was doing 55
@detroit_mountain94182 жыл бұрын
@@crazybuilder1412 you could be doing alot faster if you change the gearing around that sprocket way to small for that engine I have a 301cc and I have a 72tooth sprocket maybe more it's about the same size tire and had it 66 and still had more power
@crazybuilder14122 жыл бұрын
I could easily gear it to go faster but the bearings and suspension on that thing are not designed to be going that fast in the first place and I want the take off tourque.
@detroit_mountain94182 жыл бұрын
@@crazybuilder1412 I would have mine 70 mph no problem basically have the same bike mines newer tho
@MrMartman777 Жыл бұрын
Is the trans from a Shifter Cart. Plausible. I'm looking into that now
@crazybuilder1412 Жыл бұрын
No it was just a 30 series tourque converter
@r.a.d.u.s.armyret.29042 жыл бұрын
hey slick! how about removing the obviously bolted on arm that is attached to the centrifugal shaft of the governor?
@crazybuilder14122 жыл бұрын
I have removed the governor completely since that video.
@crazybuilder14122 жыл бұрын
The governor arm was left on so that I could spring load the governor as an attempt to prevent it from blowing up and all the parts going through the motor and destroying the engine. I had always planned to completely remove it. As spring loading it was a temporary solution.
@jamesholcombe435 Жыл бұрын
Belt is rubbing metal, not a power issue the rear pully sitting too far back, need a spacer.
@vancemacd6315 Жыл бұрын
You need to split the case. The plastic governer will come apart at higher than normal rpms. Remove it right.
@crazybuilder1412 Жыл бұрын
Don't worry the rest of it is long gone. It's done properly now.
@jasonsanitz56232 жыл бұрын
Wow! 18 hp! It should fly
@crazybuilder14122 жыл бұрын
It does 55mph
@jasonsanitz56232 жыл бұрын
@@crazybuilder1412 cool, ill bet its fun!
@slrs39083 жыл бұрын
Looks fun, but removing the governor is for kids that don't know how to adjust it.
@nuclearwarhead60723 жыл бұрын
I remember my first time
@crazybuilder14123 жыл бұрын
I will be fully removing it to prevent the governor from exploding from the high rpm and the parts going through the engine.
@abdulkamau28623 жыл бұрын
Looks good
@rosstempletonogskater Жыл бұрын
How many MPH did it go ??
@crazybuilder1412 Жыл бұрын
It does 70mph
@SkipWinters19826 ай бұрын
You put your drive belt on backwards
@yourlocalrussiankid91626 ай бұрын
that aint no mini bike, thats a whole ass harley!
@williambaillie4126 Жыл бұрын
Why don't you get rid of that dahm belt drive and just run a chain drive. You got plenty of power with a twin cylinder motor.
@futurewilltell10126 ай бұрын
I assume it’s because the clutch can’t handle it. I’m doing a 992cc generac swap quad and the new clutch just wear out
@traphouse57182 жыл бұрын
Damn son!
@abdulkamau28622 жыл бұрын
What size bolt goes on the drive shaft
@joekrim6557 Жыл бұрын
nice bobber
@drfaizulhassan23192 жыл бұрын
18 hp v twin engine price ???
@crazybuilder14122 жыл бұрын
Used I paid $650
@drfaizulhassan23192 жыл бұрын
25 to 40 hp v twin are available ???
@crazybuilder14122 жыл бұрын
This I do know but they would be hard to get inside of the frame, I do actually have a Honda 670 cc that I would eventually like to try to get in it.
@denisemcillece7923 жыл бұрын
What you're saying most people that do anything with these engines are already know. And either there's something wrong with the alignment of your clutches or your using cheap belts.
@crazybuilder14123 жыл бұрын
I was using an 40 series primary clutch (double taper) with a 30 series secondary (single taper with flat one side) which is the wrong setup but it is fixed now.
@denisemcillece7923 жыл бұрын
@@crazybuilder1412 I see. Those belts for centrifugal clutches are normally very strong so I knew something was wrong somewhere. 👊✌
@tugmanxubu47203 жыл бұрын
belttt
@SCATGS Жыл бұрын
holy shit
@crazybuilder1412 Жыл бұрын
It gets better! In my next video I will be turbo charging it.
@ervingoertzen72333 жыл бұрын
The only thing I would do next is swingarm rear suspension setup
@crazybuilder14123 жыл бұрын
I'm thinking about it I can definitely do it. I am a machinist after all. but currently the pipes are connected to the rear arm and I don't want to change them. But I probably will.
@abdulkamau28623 жыл бұрын
@@crazybuilder1412 do you got a video how it is mounted to the frame
@richardmattix53222 жыл бұрын
It looks like you put the belt on the wrong way.
@TeleCaster663 жыл бұрын
Get a Polar torque converter, way better than anything else I've seen.
@crazybuilder14123 жыл бұрын
Just bought a $400 clutch for it install in the next video
@chrisv60082 жыл бұрын
Belts on backwards also
@derrickclark55103 жыл бұрын
Are you selling this bike?
@crazybuilder14123 жыл бұрын
Maybe someday but currently no
@chadmills5400 Жыл бұрын
Well... you're not supposed to run a 30 series on big block, that engine has too much power... and definitely not a 30s with a 40s... You wear the belt unevenly, and it has too much power
@Gamer-sm1nt2 жыл бұрын
Hi I was wondering if I could pay you too do mine
@scorpioslab3 жыл бұрын
PZ 22 carburetor will take the governor away
@heavystarch1002 жыл бұрын
Slap a Juggernaut on a 40 series.
@radiatrex173 жыл бұрын
Get the jackshaft setup Screw the belt setup
@crazybuilder14123 жыл бұрын
The belt is a torque converter and gives it both power and speed, far superior to a centrifugal clutch check out the part 4
@radiatrex173 жыл бұрын
@@crazybuilder1412 power and speed lol the belt must be stickshift smh wrong belts break and slip more than anything else it does
@crazybuilder14123 жыл бұрын
The mini bike doesn't have a manual transmission (although I wish it did) it has a cvt (constant variable transmission) and the belt is the main part of that setup it can change positions on the two pulleys to create an infinite amount of ratios between it's highest and lowest capabilities. Meaning that it has a low rato (high rpm on the engine and low rpm of the tire) when you take off giving you alot of torque to the wheel and when the bike gets up to speed The cvt automatically changes to a higher ratio (less torque for more speed) to give you the lowest engine rpms for the speed you are going also increasing the top speed at wide open. The new cvt works well after I put a comet belt on it and the belt slip is what makes the clutch work.
@abdulkamau28623 жыл бұрын
Can you send me link to get the gas tank
@crazybuilder14123 жыл бұрын
I can't get the link to copy but just search mini bike gas tank on Amazon and I bought the 4L one.
@abdulkamau28623 жыл бұрын
@@crazybuilder1412 Thanks
@michaelnagy46032 жыл бұрын
Better get a billet flywheel stock is no good for those R's
@Chocolate_dragon2 жыл бұрын
Your belts are eating up because it’s completely installed wrong and not lined up correctly……I never understood all the work to put these big engines in a mini bike frame. My Coleman runs 55mph and I have about 400 bucks into it. Motor build and torque converter
@crazybuilder14122 жыл бұрын
I know all about the old torque converter issues and it has already been replaced. Plus putting a big engine in my bike was for the sheer amount of torque it can put out. With the right sprocket this bike could easily go 80 to 100mph I just don't want it to. So it's geared for 55mph. And it gets there in less than 2 seconds.
@CrazyForCooCooPuffs3 жыл бұрын
do this with a chinese v twin diesel
@crazybuilder14123 жыл бұрын
That would be interesting although I would have to come up with a gearbox Because diesels don't rev up all that high.
@jamesmusser49452 жыл бұрын
You have got to put a spacer on the backside of the
@bewilderment92683 жыл бұрын
PCV goes to air cleaner.
@richardmiranda6402 жыл бұрын
Problems, problems, applied engineering I suppose.
@lifebehindtheselens Жыл бұрын
Yeah you definitely don't have those clutches of line properly and that's why your belts ripping has nothing to do with the power