Ya need to spray your crank seals for bubbles. hopefully it's a seal. If you replace the seals and it still won't hold pressure it's probably leaking internally. I suspect crank seal.
Failed Leakdown test
- Thread starter Joey_Stacks
- Start date
Im not sure if I want to spray soapy water into it... the more I think about it the worse of an Idea it sounds. I might just swap in some new ones and run another test
on the other hand If Im pumping it up it wont let soapy water into anything besides the clutch cover which could be cleaned....
yeah, the soapy water won't hurt anything you're not putting much in there.
and like they said before, its inside, question, was the piston broken when it came apart before?
and i'm a huge advocate for using real yamaha seals, the cheapo kits that are on ebay etc are just lacking to me in the quality department
and like they said before, its inside, question, was the piston broken when it came apart before?
and i'm a huge advocate for using real yamaha seals, the cheapo kits that are on ebay etc are just lacking to me in the quality department
Most likely, Dude. That is what was wrong with mine when there was air coming out the vent.
I know guys with 125's who go through a clutch side crank seal each year, like clock work they never pass the leak down test. They are an easy replace, it can be done in half an hour.
yeah part of the piston skirt was broken. The head was off when I bought it. Yeah your right why cheap out when it comes to seals I will check out the oem yamaha ones
