jquest1234

I am installing a 88cc kit and the chain slack isn't enough.

Everything is assembled down to install the new cam sprocket. The problem is that I have the sprocket on the chain and the cam doesn't line up with the holes on the camshaft. Meaning there isn't enough slack in the chain. It almost there but just not enough.

I measured the stock head and cylinder and it's the same as new cyclinder and head.

I have also removed the bolt on the bottom of the engine that is the tensioner bolt.

AM I MISSING SOME TRICK OR DID I DO SOMETHING WRONG. I disassembled everything to double check that it was on there right.

Any Ideas????

Thanks

JQ

bigwhiteboy

when you took of the tensioner bolt did oil come out of it???? If so you might have to pull the gear a bit to release some slack...

after you take the tensioner bolt off...you put the gear inside the chain then pull the gear forward..you should feel the tension release and see the chain move..

I have also witnessed people putting a screwdriver through the middle hole of the gear and into the middle of the cam and pull the gear forward that way until they line up....

good luck

jquest1234

Yes, oil came out of it when I removed the tensioner bolt. Is that normal?

Thanks :YEAH

bigwhiteboy

it is normal

just give it a tug and see what happens...also make sure than the chain is not jammed inside the case I have seen that happen as well...try the screwdrive method if all else fails..

good luck bro

it will all be worth it when you are done and riding the thing

jquest1234

Thanks. When I turn the flywheel the chain will move. I don't think its stuck inside the case. If I have already tightend the bolts at the end of the head. Can I undo the head and cyclinder without trashing the gaskets. I can then remove everthing and verify that the chain isn't bound inside the case. The engine worked properly before I disassembled it

I have already tried to pull on the chain but it doesn't wanna budge. I am guessing it's caught somewhere? Although, the chain does move. hmm

Thanks

bigwhiteboy

ok if you move the flywheel and the chain moves 2 then it sis no bound up

how close are you to getting the sprocket on the cam and is the cam seated in the head 100%?

do you have a camera to snap a shot if so post it up..

jquest1234

it's only about 1/8 inch off of the mark. If I pull on the chain I can get it down to 1/16th of an inch off of the correct position. The cam is in the head 100%. I will take pictures tonight.

If I remove the head and cyclinder will I need to buy new gaskets? If not, I will tear it down and check it again.

Thanks

bigwhiteboy

well here is the thing, if you torqued it all down then I would say don't rip it apart, but since the motor never ran it should be ok..

I have done it without a problem. I have also reused a gasket here and there..

the only gasket I ever had a problem with was the one that goes on top of the head over the rockers..it has a tendency to leak if the surface isn't 100% clean when you slap a new gasket on...nothing a little rtv couldn't fix...just watch that one when you get it back together..

honestly I think you have to go for the screw driver method....it has worked on several bikes...

snap a pic and post it when you get a chance...we'll get it up and running

bigwhiteboy

take a look at this

bigwhiteboy

this is a super head but it is pretty much the same...

the tensioner bolt you loosened was by the kickstand right? and the cam chain roller is in place right?

if yes to all i would stick a small srewdriver through the hole of the cam with the chain on it and stick into the center of the cam and give it a little push forward..

Z50NATIONALS

white boy is right
it should be really snug fit almost to tight
that is normal ,i just flop em on ther by hand you learn how after a while
the cam chain tensioner will not release only get tighter
you have to manually release it ,so you need to be sure you
got it right b4 you run it
be sure you get the timming right
or youll be doing it again

jquest1234

The problem was the chain was off inside the motor. Once it was on it worked fine.

Thanks,

JQ