how high will it spin

yea i guess its something im gonna have to just play with till i get it dialed in.
i just dont wanna break it in the process

chancelton wrote: yea i guess its something im gonna have to just play with till i get it dialed in.
i just dont wanna break it in the process

Does it have Shim on Top or Shim on Bottom Buckets?

If you're going to twist the thing to death, Shim on Bottom is what you want. Remember, a free wheeling motor that's past it's peak HP RPM is only consuming time without gaining anything.

Try launching about 6500 and set your limiter to 9000 to start with, then adjust from there. If the motor is producing respectable torque, it will leave just fine. The rest is in the gearing and how well you can launch it

How many gears are you actually using anyway?

it has a mystery 2 speed transmission. i havent looked in to the transmission or slipper clutch at all yet. i have no idea what the heck i have

except for another question,

what is the spec for valve clearance, shim on top for the old kz

just seems like .004 isnt enough, i know in automotive applications a valve stem will grow that much with heat on the exhaust side

If you want, you can go to .006" lash. No problem at all.