I don't really expect it to pass a leak down test if the rings aren't seated to the cylinders.
full rebuild on my04
- Thread starter N2oExpresS2k
- Start date
I don't really expect it to pass a leak down test if the rings aren't seated to the cylinders.
Your not testing the rings, your checking the gaskets and seals. This is so you are not running a lean mix and fry your top end. here is the step by step,
Usually reed cage or base gaskets are the issue. But u can always have a bad crank seal install or case half leak. It takes less that 20 minutes and could save you hundreds. It's a must do on the two strokes. Even a small leak will have you chasing the jetting! One other thing I'd check also is the float level, make sure it is correct before you start jetting. I've made the mistake of not leaktesting beore i ran my motor and cost me a piston, bore!
Your not testing the rings, your checking the gaskets and seals. This is so you are not running a lean mix and fry your top end. here is the step by step,
.
Usually reed cage or base gaskets are the issue. But u can always have a bad crank seal install or case half leak. It takes less that 20 minutes and could save you hundreds. It's a must do on the two strokes. Even a small leak will have you chasing the jetting! One other thing I'd check also is the float level, make sure it is correct before you start jetting. I've made the mistake of not leaktesting beore i ran my motor and cost me a piston, bore!
I understand, in a 4 stroke a leak down just tests the combustion chamber, but I suppose with this test you seal up the entire crankcase prior to pressurizing it.. So you just look for leaks in gaskets. You got a PM bud.
It was 68 dollars. Yamaha Blaster 200 88-06 Blue O Ring Chain & Sprockets | eBay, read good things about these on bansheehq.
Last edited by a moderator:
Not really planning to do much to the shee for now other than get some use out of it. It's running well so for now, if it aint broke.... lol
I'm having a problem now where the engine won't start. Seems to me like the timing is off now with this new piston. It keeps backfiring and throwing the kick starter back up into my foot. Now my foots not feeling so great... Any suggestions?
Easy to check, pull off the flywheel and see if the Woodruf key is intact.
Torque it back on to 53ft lb, lap it if any damage to the tapers.
Torque it back on to 53ft lb, lap it if any damage to the tapers.
Pretty sure it is because I had the stator replaced by local atv shop since I didn't have a puller. He would've told me if I needed a new one. Could it be that the timing is off because of the new piston?
no your timing only will change if the stator is in wrong place or sheared key , From what I've read and seen
silly questions.
Is piston in right ? hows the reeds ? carb on right ?
I have seen something like this, when I had the choke cable in wrong on the carb and also check the carb slider, make sure its on and in all the way.
Is piston in right ? hows the reeds ? carb on right ?
I have seen something like this, when I had the choke cable in wrong on the carb and also check the carb slider, make sure its on and in all the way.
Similar threads
