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View Full Version : Does my 400ex sounds ok? please help me asap



adawg89
11-25-2008, 08:45 AM
I was riding last night on the back roads nothing hard just cruising and I decided to record my 400ex idle and see if it sounds normal to you guys. I hope nothing is wrong it pulls great no hesitation.

http://www.youtube.com/watch?v=sqGZwuZHWr8

katch26
11-25-2008, 08:50 AM
sounds ok, what do you think sounds weird about it?

adawg89
11-25-2008, 10:10 AM
Originally posted by katch26
sounds ok, what do you think sounds weird about it?

Well I hear like a chain moving in the engine (timing belt?) which sound like when you push the pedla backwards on a bike when going down hill. You know that sound? Thats what I heard and thought maybe it was a bad thing.

Honda#4
11-25-2008, 11:22 AM
Just to clarify do you have a aftermarket cam in there? Sounds to me like it ticks alittle louder than it should.

hoogiesngrinder
11-25-2008, 11:25 AM
Mine sounds exactly the same. Chances are the timing chain is stretched and/or the tensioner is worn out. A CRF450 chain and new tensioner should run you under $100

adawg89
12-03-2008, 09:29 PM
Originally posted by hoogiesngrinder
Mine sounds exactly the same. Chances are the timing chain is stretched and/or the tensioner is worn out. A CRF450 chain and new tensioner should run you under $100

A CRF? You mean a dirtbike chain? or did you mean TRX 450r?

Honda#4
12-04-2008, 07:13 AM
Yes a dirt bike chain, any year fits I personally went with a 02 but it dont matter.