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compresion ?
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Posted by: 450rJam

any of you guys know what the stock compresion should be on one of these babies ?

there has got to be something wrong with this thing.
I am 220 and have to hit a bump with my arse hanging off the back to get it to wheelie.

Posted by: 400ex_rider13

quote:
Originally posted by 450rJam
any of you guys know what the stock compresion should be on one of these babies ?

there has got to be something wrong with this thing.
I am 220 and have to hit a bump with my arse hanging off the back to get it to wheelie.

compression of the spring rates or compression ratio of the piston? my dad works at a suzuki/honda dealer, he will know.

Posted by: 450rJam

piston compression,
my z250 just seems low on power, Im checking compression to see if I need rings. (it starts up really fast and easy so Im grasping at straws)

I cant figure out why this thing is such a terd

Posted by: 400ex_rider13

quote:
Originally posted by 450rJam
piston compression,
my z250 just seems low on power, Im checking compression to see if I need rings. (it starts up really fast and easy so Im grasping at straws)

I cant figure out why this thing is such a terd

the stock compression is 9.2:1

but my brother has a wiseco high compression 10.5:1

here are his mods, im 16 and weigh about 165, and can ride a wheelie just as good as my 400ex.

CHM P-4R slip-on exhaust
DynoJet kit
Factory Suzuki swingarm skidplate
Polished & Ported head
PowerMadd handguards
ProCom rev box
Uni Air filter
Versha Valves
WebCam stage 2 cam
WebCam valve springs
Wiseco 10.25:1 piston

only one problem, theres too much power for the suspension and chassic, there are elka's to get for it though

Posted by: 400ex_rider13

quote:
Originally posted by 400ex_rider13
the stock compression is 9.2:1

but my brother has a wiseco high compression 10.5:1

here are his mods, im 16 and weigh about 165, and can ride a wheelie just as good as my 400ex.

CHM P-4R slip-on exhaust
DynoJet kit
Factory Suzuki swingarm skidplate
Polished & Ported head
PowerMadd handguards
ProCom rev box
Uni Air filter
Versha Valves
WebCam stage 2 cam
WebCam valve springs
Wiseco 10.25:1 piston

only one problem, theres too much power for the suspension and chassic, there are elka's to get for it though

these mods really make the quad come to life, it was a great increase

Posted by: 450rJam

do you know the psi it should have stock ?

my 250r was around 185 psi but it was a 2 stroke, Im not sure how close to that it should be.

Posted by: 400ex_rider13

quote:
Originally posted by 450rJam
do you know the psi it should have stock ?

my 250r was around 185 psi but it was a 2 stroke, Im not sure how close to that it should be.

high as 200, but normal reading would be 130 to 175

Posted by: 450rJam

sweet, thank you very much

thats exactly what I needed to know

I do appreciate it