Snowmobile engine on a motorcycle |Take 2| 

The question is...Can it be licensed? Thanks for watching!

I like how this guy actually takes advice and makes a part 2 on the project, rather than trying to act like mistakes weren't made. Cool stuff.

Old coils will stop sparkling when hot . Then work again when it cools down

No one can get mad at you. You’re way in the cool zone with that thing!! Keep it coming.

you have to loop the oil pump input...if you stop them..or block them off ...it will shut down like it is doing

The stock jetting on that carb is meant for a ambient temperature of 5 degrees celcius down to like -20. Aka it's probably putting out a lot more fuel than youd need on a 25 degree day. You COULD put a smaller main jet and raise the c clip on the needle inside the carb slide by one clip position and it would probably pick up a good 5-8hp. Just dont go too lean or you could melt or hole your piston :D Edit: losing power as it gets warm could be a ignition coil going bad. On some old sleds I've owned they only start to act up when they get hot. Good luck!

I can really see a progression of skill in your builds...and that is not easy because you do it on a budget.

Dude, your fab skills are improving considerably. I would love see what you could do if you actually tried to make something nice. I really think it would do and your channel a ton of good if your next project is an original %100 custom bike frame made from new steel tubing. A nice looking 50hp or ⬆ engine and new/restored/repurposed, you know, nice looking rims. With custom fenders, seat and so on... I absolutely believe that you can put together something amazing if you try. It'd totally be worth the attempt. You could even still do small side projects while making it if you feel like you wanna pump out a different video. However, a good long form project would really help out your channels analytics and give people a reason to wanna watch your next vid to see whats been done. Just a thought man... Take it or leave it. You're clearly already doin well. But I for one would love to see what you cook up! CHEERS BUD!🍻

Well if you got twin pipes for it with the right jetting it would fly!

I have a 1972 suzuki tc125 trail bike (2 stroke) it was having oil pump problems, I was going to simply premix the fuel and oil, but was advised against because the oil is injected into the intake port and also a certain crank bearing. The crank bearing wouldn't be lubricated with just premix fuel. Dunno if it's the same with yours but just something to watch out for.

Have to be carful removing the oil pump because some of them pump oil directly into the bearings!!!

Oil pump and change jets

I don't see how removing the oil pump would shut down the engine. You are probably just over heating the engine, snowmobiles are designed for cold temperatures. You could also have a case of vapor lock.

Your coils may be fixing to fail, related to heat and old age, just my opinion. Keep up the great videos!

Should have mounted the expansion chamber over to the right hand side. Would definitely improve the balance of the bike both physically and aesthetically

First time here for me, and I have to say that you are a good guy. It gets a bit monotonous with a lot of the young guys approach on RU-vid. Most are clearly selling themselves, but I got a different vibe from just this video.

Petrol oil mixing is always safer than relying on the pump. The majority of 2 stroke motorcycles have wrecked their engines because the oil pump has stopped working. You can trust an oil pump on a 2 stroke as much as you can trust a woman. Also you cannot use engine braking on a oil pump 2 stroke, only safe on petrol oil missed 2 strokes to do this (provided they aren't run recklessly weak!!). 35:1 is a higher oil ratio than 40:1. 40:1 is on the edge of poor lubrication and 50:1 is right in the middle of it. The best rule of thumb safe ratio is 33:1, speaking from 39 years of riding 2 stroke motorcycles everyday on roads. Try separating the exhaust system into separate pipes. Fabricating a basic 2 stroke expansion pipe and silencers isn't rocket science or bodging up a system using old 1970's 2 stroke pipes isn't either.

Put oil pump back in function,don't listen some idiots who don't know how to change spark plug. Oil pump is there for a reason.

MAD MAX MACHINE

Shouldn't have disconnected the oil pump. Brt you it's lubing the crank bearings that wouldn't get anything from premix

this is such a cool channel, i hope it gets more recognition

You have to loop the oil pump inputs with a tube. You can’t block them off. There’s a mechanical switch in the block

You should find some pipes for that thing and jet the carbs and that thing will be brrraap nasty

Search for a oil sensor, this could be your problem.

fuel line is too small. it emptied the bowl while you were at "WOT"

put that oil pump back on! problem solve.

& dude its ur project u can do what ever u want to it no one can tell u what to do with ur projects who cares if others get mad n upset its NOT their project its UR project ur free to do what ever u want to it etc

If your motocycle dies afer a while and loses power you should use a bigger jet in the carburetor. I had this problem on my motocycle

This thing is amazing!

dude y our edits are getting so much better i love it!! keep it up man

That thing looks like an absolute beast!

Wow that was a very good toss you throwing that exaust pipe went pretty far

Air cooled snowmobile engines are tuned for cold.

I really can't see how removing that would do it.

Surprised that your mototr didnt blown up! How TF are you gunna cool it in the summer like that

There's a worm gear on the crank that drives the oil pump. It pushes oil through a passage that dead ends "BEHIND the ROTARY PlATE to feed both carbs. Delete the oil pump and use only 35:1 you oil the front of the plate but not the back of the plate carb to intake hide behind the plate and there's no oil from the fuel. The oil pump presses oil between the plate and the engine block 🤙

That muffler doubles as a side car 🤣🤣🤣🤣 not meant in a disrespectful way. Props on always trying to do a burnout every build! Awesome

You really do some cool things and it’s fun to watch. I’m surprised you haven’t had any grief from the cops, riding on the highway. Keep it up.

A front mudguard is necessary to stop the front forks from twisting when you use the brake.

Very cool Can you make it where I could post some pictures, as I've built 5 snowmobiles my self and would like to share info and pics

There are SO many things about engines you don't know, I don't know where to start. I DO know about half the suggestions in the comments are WRONG.

Since this was 4 years ago you must have figured out it was either coils over heating or vapor lock in the fuel system. Engines built for cold weather operation do not do well in the summer. If you still had spark, it was vapor lock. I used a 2 stroke snow blower engine on a push scooter and it would vapor lock after a minute or two. Went loke a bat out of hell for a minute or two before it would lose fuel.

You could have put 2 pipes on her. That may even it out. 50:1 is best for older machines I find. Little heaver for warm air though it helps keep it cooler. They don’t like warm weather hard on plugs

jesus man, I have to adjust the volume every minute

That bike would be a flippin rocket and ablast to ride for sure. Its to bad the expansion chamber ad centrifugal cluthes take a ton of room but you could refine that eventually. But what a fun bike!! Enjoy!!

Why don't weigh more bikes used torque converters? I built a 74 honda with a Predator 212 and torque converter, more bals than the original engine n trans

Its probably your sparkplug, my bike would shut off randomly, then it got worse, It would start up for a couple seconds and shut off, I thought it wasn't getting enough oil. I pulled out my sparkplug and it was all covered in like a black goo, swaped it out for a new one and the bike started right away and no problems sence.

You can get a south dakota registration for it, even if you're not from SD. Guys do it all the time to make thier dirt bikes legal. Do some Google searching on the subject... No inspection either..

The carb is jetted for straight gas which has a lower viscosity when it has an oil injection, you need to rejet the carb when switching to premix. Its probably leaning out and causing excess heat which can effect the stator and lose spark. Look up an instructional on jetting. When your jetting is spot-on, power will be boosted dramatically

Paper fuel filter? Can't flow fast enough when just gravity fed...

And I just happen to have an ATV with no engine in my backyard. Hmmm....

If you disconnect the oil injection pump and lines you are deleting the pressurised oil supply to the sealed main bearings of the crankshaft of this engine..result will be the complete destruction of these bearings and a complete engine rebuild required to rectify the problem..While premix is ok to lube the cylinders,pistons and the whole engine top end..this engine has been designed to run the oil injection system only..

I have a buddy that modded a Indy 650 triple into a four wheeler, once he got the clutches dialed in his words were " that thing scares the sh*t out of me" it was uncontrollable power wise.

Start by looking at the spark plugs and make sure your gas tank is venting. Could have vapor locked . So fricken raw tho . I love it . If you got a title it shouldnt matter wwhat motor is has.

Poor Fuel misture meke engine overheat ....carburator setings

If you could get the expansion pipe on the other side and maybe a little higher. You dont have alot of room to turn right

Would not help for you to remove the current shrouds from the head and cylinders now it's out in the open and has plenty of air flow. The stalling could be a venting issue of the fuel tank? Or you just had some dirt or water go through the carb? I really can't see it being from heat! Their designed to run in the winter but that's under a hood no less! So yeah out in the open air you technically don't even necessarily need the fan or shrouds.

Turning left is more dangerous than right anyway because that's where all the fool oncoming traffic is

You can keep the oil pump operable whether you put oil through it or not.I kept one operable just didn`t put oil in the tank..I trust the oil in the gas more...And I`d run the oil on the rich side,more not less.

on the carb , the needle and seat has a size on it . if your using a fuel pump ( like on a snowmobile ) you use a smaller size needle and seat , and if your using a gravity feed fuel tank ( like a motor cycle ) , you use a larger needle and seat . ... this is different than the other jets in the carb and is only use to maintain a certain level of fuel in the float bowl .... anyway , i think your problem may be too small of a needle and seat and your running the float bowl dry

Snowmobile's are super fast if. You. Put a. Top class one in a bike it would dust super bikes of the line for fun there so quick

It appears you are using a rear disc brake on the jackshaft, if that is the case it is a really bad idea, chain breaks and you don't have a rear brake, which is why you never see anything like that on a factory built motorcycle.

Without oil injection your crank gets no oil I've blown up 3 motors to that mistake

It's a forced air fan-cooled engine. If your not using the fan you might want to remove some of the wheat metal around the cooling fins. Its there to keep air flowing one direction. Now it needs to cool from all directions.

is it just me, (i may be stupid) but does it seem like his torque converter is slipping ALOT

You need to take all that metal off round the heads then take the exaust manifold off and put twin pipes with expansion chambers off a dirtbike or summat and id put a gearbox on it that would be scary

needles and seats on a pump fed carb are not the same as in gravity fed carbs., never had a suzuki sled motor apart but many of the oil injected engines use the oil pump to feed the crank bearings ( crank failure is an issue in sleds) cant see any good reason to remove a working system.

alright here is what Ik about snowmobiles and things that can help you first unless you changed your jetting its now to rich since the engine is always warm since you are driving it is the summer and no longer in winter so u could be flooding the engine the flip side has already been said about the short fuel line where the bowl is emptying before it can fill and these could be going hand in hand also the reason you need the expansion chamber is it creates presser zones that give the engine more power with the right jetting and clutching in changing anyone of those things you might or have to change the other 2 for the engine to work properly neat build (i would have gone with a liquid cooled tho) getting it licensed might be hard tho since im gonna guess it has no title but best of luck

Nice!Snowmobile engines need carb jet change’s in warm/hot weather

I feel like a 440cc two stroke parallel twin should shit and get, and this thing isn't shitting and getting.

Don't know much about mechanics but was thinking a radiator to stop the overheating

U loose power when fan cooled motors run hot bud its ment for cold weather to get full performanceout of it . Great vids bud

104 KPH!!! dude thats insane you should be proud! WOW thats all I can say!

On snowmobile engines deleting the oil injection pump is usually a bad idea leave em hooked up, but change that jetting if its still has the stock jets in it,

Damn my arctic cat 340 used to overheat if I ran it in temps over 35f degrees. No fan tho

You should curve the exhaust over to the right side instead since you have all the clutch on the left lol thats one of the reasons brand made bikes have it on the right also :P

probally not since frame is scratch built unless its different where he is

Only do this modifications happens at Nevada I am summing

Get yourself a good modern engine and gear it right and that thing would make most people shit thenselves

Don't forget to jet up if adding oil, could be leaning out now

Dang that thing is the business

Advice: Get a front tire that is not all dry rotted out. If that puppy lets go at 30+ mph yer toast.

could the air scoops at the plugs be an issue not taking air being reversed

I'm putting a smaller 340cc one in an enduro bike

Vented gas tank????

If you got a vacuum actuated pulse fuel pump.. delete it.. not pump at full throttle

That thing is hideous looking, but I love it for some reason.

You probably hear this allot;Man,you've got a Huge tube !

You should change the manifold so you could run a duel carb setup

You have to get your pipe correct! That crazy cool toy ought to scream!

Check your coils. My bike does it when it gets too hot. I change out the cdi and its good to go

finally. ive been waiting for this video! nice work man!

Nice build.

Pull the cover off the cylinder fins...open them up so they can get air!

No a 2 smoker relies on that chamber for the back pressure.

Fun make motor bike if you liked can do make motor bike

I bet that is one fast bike

Either too much oil in mix or starting to lose a coil possibly

Two into one expansion chamber??

No need for a kickstand with that belt drive. 👍