YAMAHA GP1200R flat top kawasaki pistons

[kevboy34]

hi how ya all doing a few questions for the guys in the know...


i have a gp1300r with a gp1200r engine. it has fuel injection.
3 degree key 80.5 bore 78 stroke 3 cylinder = 1190 cc
decked cylinders 3mm. skimmed r&d heads.kawasaki flat top pistons.
steel liners ported. welded crank. 05 exhaust d plate fuel controller..
...got water in & lifted cylinder


now im going to have the cylinder fixed
im having it bored out to 83 bore 78 stroke 3 cylinder = 1266 cc

im trying to get correct squish angle & what cc are in the head..
to get me to 215 psi for race gas...

need help im not 100 percent sure is the squish on kawasaki 8 degree
& looking for the cc to get compression to 215psi

cheers kevin

[Duke]

hi how ya all doing a few questions for the guys in the know...


i have a gp1300r with a gp1200r engine. it has fuel injection.
3 degree key 80.5 bore 78 stroke 3 cylinder = 1190 cc
decked cylinders 3mm. skimmed r&d heads.kawasaki flat top pistons.
steel liners ported. welded crank. 05 exhaust d plate fuel controller..
...got water in & lifted cylinder


now im going to have the cylinder fixed
im having it bored out to 83 bore 78 stroke 3 cylinder = 1266 cc

im trying to get correct squish angle & what cc are in the head..
to get me to 215 psi for race gas...

need help im not 100 percent sure is the squish on kawasaki 8 degree
& looking for the cc to get compression to 215psi

cheers kevin


what i im

Tim Judge should be able to answer those questions. Give his shop a call, 954-415-9226.

Lowell Horning would be in the know as well. 406-375-0801