need help No top end

[04blaster]

doesnt have much power after 1/4 throttle

 

[mr_3_0_5]

do a compression check.

 

[04blaster]

its got a brand new vitos kit which has plenty of compression

 

[mr_3_0_5]

whats the compression?? if it is good you need to check your jetting..

 

[04blaster]

the jetting seems right. could it be the mixture screw?

 

[mr_3_0_5]

you mean air mixture?? should be 11/2 to 2 turns out..

 

[hickskateboarder]

air screw only effects idle circuit. i'm betting your main is clogged or is the wrong size

 

[04blaster]

well is the jetting size to large or to small? if it has no power

 

[98blaster+4]

maybe you put the piston in backwards.

 

[tjscott]

if the piston was in backwards there wouldve been a big kabang by now.
how does your jetting "seem fine" have you done the jetting test?
one more, is this a new blaster? have you ridden it before?

 

[04blaster]

yes ive had it since 04. when i took it to the shop the guy was riding it like it was fine. then the fuel petcock was clogged so i replaced it and was leaking cause the float bowl was clogged so fixed that and now theres very little power?

 

[hickskateboarder]

take the float bowl off and clean all the jets out with carb cleaner/compressed air, then do a plug chop. look in the diy section on how to do it.

it would lack power if it is lean just like if it's too rich. only difference is it will blow up really quick if your running lean, but not if your running rich.

 

[04blaster]

k thanks alot

 

[blasterfreek30]

defently sounds like a clogged main jet, since that jet meters 3/4 throttle to wide open