HELP rejeting is confusing

[padoda94]

I have a 95 blaster that is .80 over and has fmf fatty gold series and power core 2 silencer . And vforce reed valves . It runs vary lean and I lost compression after a recent topend rebuild . What size of jets would be most appropriate . Last owner rejetted it but apparently not enough

 

[Awk08]

what jets are in it now ????
at least a 270 main for that fmf and reeds
if it lost compression it's gonna need at least new rings, if not honed/bored and a piston
whats the compression test readings
and a leakdown test is required too

heres some better info to help you understand yourself, and not have this happen again............

jetting 101......
http://www.blasterforum.com/do-yourself-20/jetting-101-everything-explained-1625/

build and use a leakdown tester.......
http://www.blasterforum.com/do-yourself-20/build-use-leakdown-tester-10663/

 

[padoda94]

It's got 110 psi and it runs good. I have the jet numbers wrote down at home .I'm outa town so Il post on here what I have later tonight

 

[Awk08]

It's got 110 psi and it runs good. I have the jet numbers wrote down at home .I'm outa town so Il post on here what I have later tonight

125-135 is common for new rebuild on a stock bike,
100 is getting down there, i'd hone and re-ring it to gain back what was lost
anything near 100 is gonna need attention very soon

 

[padoda94]

My main jet is 340

 

[scotj77]

I would guess you have an airleak somewhere with that big of a main and those mods. you should be 300 or lower I would think. contact member slickerthanyou. he sells leakdown testers for a good price. or make your own.

 

[padoda94]

I work at a small engine repair so I have access to most tools and leakdowns and all that. and I think its a air leak but Idk where. My guess is behind the stator

 

[Awk08]

a leakdown tester and some soapy water in a spray bottle will point you right to your
leak

http://www.blasterforum.com/do-yourself-20/build-use-leakdown-tester-10663/

if the shop you work at doesnt have one, they have no business working on 2 strokes

 

[padoda94]

Would there possible be a leak on the right side behind the clutch

 

[Awk08]

Would there possible be a leak on the right side behind the clutch

that usually results in trans fluid getting sucked into the cylinder causing a sh*tload of white smoke,thats a crank seal leak, not clutch
the tranny is seperated inside the cases from the bottom end

 

[padoda94]

There's no sh*tloads of whit smoke so its prolly not the tranny seal.