Maintenance & Technical > KX500 Original

What should the motor sound like?

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oic0:
Im pretty sure I still have good compression (though I am about to checkz) since the kick lever is a bear, but I can definetly hear the motor as loud as an air cooled bike.

BTW, got to open it up on a country road. Goes like a rocket ship but wont power wheelie in third. May be this dented head pipe though. Front end waggle made me too nervous to go past 3rd.

KX500freak:

--- Quote from: oic0 on May 10, 2009, 01:18:07 PM ---Im pretty sure I still have good compression (though I am about to checkz) since the kick lever is a bear, but I can definetly hear the motor as loud as an air cooled bike.

BTW, got to open it up on a country road. Goes like a rocket ship but wont power wheelie in third. May be this dented head pipe though. Front end waggle made me too nervous to go past 3rd.

--- End quote ---


maybe lower the forks an inch in the clamps ,it will minimize speedwobble .
for the sound ,maybe time to tear top end down ,im up to the same issue as you on my streetk5
im thinking the pistonrings are worn on my bike

oic0:
according to the previous owner the piston is 6 months since that was when he bought it and he payed the owner before him extra to put in a fresh 1 over wiseco. I wouldnt say it was that odd on an air cooled bike. The rd350 sounds like a type writer (edit* sewing machine is a better example), but I figured the water jacket should make these quiet. No idea of the ring life on these thing but cheap peace of mind is always a good thing I guess. I would really like to see if the crank is tight too while i'm in there since the previous owner had no idea what I meant when I asked about that.

oic0:
Here we go, sounds about like this guys bike (except with a lot more ring a ding, think i need to repack the muffler lol)

http://www.youtube.com/watch?v=rDBERY0rbUw

KX500freak:
lol that is the k5 from one of our members
crank tight,you mean bigend noise or how the crank fits in the cases ?

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