Jettttttiiiinnnggggg!!!!

[1bad442]

his are pro x so they wont be the same, just like my dyno jets were. I just did another leakdown test, each test declines at a different rate for some reason, i am going to get an expansion plug for the exhaust to eliminate a leak there. I am at a loss right now, it is pissing me off, i might have just found an already exosting problem like bad crank seels, cause i am not seeing bubbles anywhere....

if the test is losing pressure its gota leak somewhere

 

[Whitty21]

i know, i am hoping that it is the exhaust port... if not i dont know what i will do....

 

[Whitty21]

alright, i did another leakdown with a new tighter clamp, still loosing pressure, so i am going to try and find an expantion plug for the exhaust and if it is still leaking it must be that i found a crank seal leak i wouldnt have found otherwise. If this turns out to be the case i might just send ken the engine get him to fix it and while its there check the crank bearing and port it as well, if thats the case i got a build on my hands...

 

[slickerthanyou]

alright, i did another leakdown with a new tighter clamp, still loosing pressure, so i am going to try and find an expantion plug for the exhaust and if it is still leaking it must be that i found a crank seal leak i wouldnt have found otherwise. If this turns out to be the case i might just send ken the engine get him to fix it and while its there check the crank bearing and port it as well, if thats the case i got a build on my hands...

If ya spray soapy water on the exhaust and don't find a leak then i would say that's good. Good job a leak down test is the shizzle! Ken will take care of ya too!

 

[Whitty21]

its really hard to see any bubbles cause it is all in the way. I tried a 1.5 inch expansion plug but it was too small. I am gunna get a 1-1/4" for next weekend and see how that works, then i will be certain. Thanks for the input guys kinda bummed i cant ride this week

 

[Whitty21]

alright, as per ken and someone else suggested, i greased up the exhaust block off and the leak went down from 2-2.5 psi per 5 minutes to 1 psi per 5 minutes, what do you think?

 

[hudack]

try spraying the vent hose from ur case see if u get any bubbles

 

[little3mil]

if you had the stock exhaust gasket in there during the leakdown test id say thats your problem. take the stock o ring gasket out then try it. to me it sounds like your not sealing on the exhaust port nice and snug

 

[Whitty21]

I don't think mine has a vent hose.....

 

[Whitty21]

and i took the o ring out and used a piece of 3/4 inch plywood to keep it tight and greased the rubber

 

[little3mil]

and you used all new gaskets like on the head and jug and reed cage? and torqued them all within specs

 

[Whitty21]

the head has a new gasket torqued to 20lbs and the reed cage is seeled with permatex gasket maker, same as yamabond

never took the jug off, just head and reed cage

 

[little3mil]

try to put a turn or 2 on the jug bolts but dont strip them, if there really tight then it wouldnt leak there. can you see the jug/base gasket? inspect it closely. does it look legit?

 

[Whitty21]

wouldn't i have seen bubble around it when i sprayed it with soapy water?

 

[little3mil]

^^^yes, yes you would have

 

[Whitty21]

Well I won't be workin on it for 2 weeks,on my way back to school...
I will prolly take the engine out of the frame next I am back and find one easier, I will also have to test the tester as well, I have a sneeky suspision it could be leaking at the gauge, we will see though, I am not ready to accept defeat yet!!!