chain tensioner

[TRXRacer1]

Originally posted by TRX_450
well from what youve posted it sounds like you DIDNT change the timing chain, and thats more than likely the problem.

Although I don't always believe a chain replacement is necessary I'd have to agree here. What happens is if your tensioner is almost fully extended in order to keep that chain tight then they will fail faster. That's something you wouldn't automatically know either unless you were measuring for it. The CRF chain is cheap compared to the tensioner, might want to add it to your next order.

[hocman123]

Originally posted by TRXRacer1
Although I don't always believe a chain replacement is necessary I'd have to agree here. What happens is if your tensioner is almost fully extended in order to keep that chain tight then they will fail faster. That's something you wouldn't automatically know either unless you were measuring for it. The CRF chain is cheap compared to the tensioner, might want to add it to your next order.

yea i also belive u don't have to do it everytime but maybe it is my time to replace it really sucks but is better then blowing 70 dollers on tensioners every 10 hours of ride

and crf is that a honda atv b/c i allways hear about the chain but never seen a quad called crf on the part sites

[TRXRacer1]

You are correct. Crf as in 02-08 crf450r dirt bike. The trx450r is too long. Service honda has the chain for 33.96 and the 400ex tensioner for 54.44. Don't forget a right side case gasket.

[hocman123]

thanks for the help i wont forget the gaskit but with the axel bearings i need to do this is going to be one expensive order

[Pt's400ex]

Just to let you know depending on where the tensioner is actually broke it can be repaired. There's a snap ring I think that holds the end together. Take that off and you can rewined the metal spring inside. It took me a couple of hours before I finely figured it out but it saved me $50 anyways it's worth a shot. Jim

[CJM]

Originally posted by Pt's400ex
Just to let you know depending on where the tensioner is actually broke it can be repaired. There's a snap ring I think that holds the end together. Take that off and you can rewined the metal spring inside. It took me a couple of hours before I finely figured it out but it saved me $50 anyways it's worth a shot. Jim

Good to know