Chain jumps off all the time ?? Getting worse chain is fairly tight not a lot of slack but not overly tight either.... seems like I read of this problem somewhere but have tried the search feature on the forum and keep coming up with nothing. any help greatly appreciated chain appears lined with front sprocket not sure what i need to try at this point

 

I was having the same issue with a smaller quad i got for the kids - the chain would fall off when we went for a bumpy ride... I found that there was a nut loose on the back frame that caused it to move when in rough terrain...might not be your issue but worth making sure the frame bolts are tight...

 

How do the sprockets look? When was the last time you replaced them?

 

Sprockets are in great shape Quad was bought new just a few months ago..

 

how much give is there in the chain? because it wouldnt be that hard to build a chain tensioner using a 15cm bar of metal, a spring and a ideler sprocket from an old bicycle

 

the factory chains stretch super easily. it'd be best to replace it with a good quality chain.

 

I think I will try taking your advice and try a good quality chain and see...

 

yep, then the tensioners, if applicable, would do their job great!

 

We had problems with chain jumping and popping off and we discovered it was a motor mount bolt had shaken loose and fallen out, letting the engine and its sprocket tilt just enough to throw off the chain alignment. We went through two chains until we noticed the missing bolt. Replaced the bolt and now it runs perfectly smooth and stays engaged all the time.

 

Thanks for all the great advice,,,, I did check all bolts etc... replaced chain and that fixed it right up factory chain was stretched over 1/2 link hence for the popping etc.... put a good quality MX Chain and no problems !!! Thanks to all that have responded here you all have been a great help !!