If you are going to replace your clutch, shift star or have the clutch cover off for any reason it would be a good time to put it in. Needed, no. Cheap insurance, yes. Jeff at fast has them for a good price.
When I put mine in this is what I was told......the steels have a sharp edge and a dull edge. Doesnt matter which way you start them but make sure they all face the same direction......all sharp or all dull. You also wont turn the steels like it shows in the clymer with the arrow offset or whatever it was. Cant remember now.
Fibers dont matter either, just put them in. You wont use the little round rubber cushions either...
make sense?
Dave
orings on the crank? the rubber seals on the flywheel and clutch sides? If thats what you are talking about then they need to be replaced. That is what seals your crankcase.
What size cub did you get?
Dave, you better get out there and start weighing each ball out of your new lockup. Race season is soon and you are going to be quite busy trying to get those little balls in order. Then if you decide to remove any you are really in for it.
if the rpm is hanging it might be your pilots. how are your air screws adjusted. that or slides are sticking.
I ran 330 mains on my bike when I had the same mods but i had 21cc domes.
I always love streetshee's post....
Ask a question then tell everyone they are wrong and do what you want to do anyway. This adds great value to the HQ database.
:wallbash:
I wouldnt worry about it. I bet you would be surprised how out of balance everything is inside the cases...I dont think these bikes were built with very tight tolerances.
125 psi is about average.....go to the classified and find some used toomey t5 or t6 pipes.....get an adjustable timing plate.....pull your carbs off and clean them and get them setup correctly...
If I remember correctly those little casting ears on the intakes have numbers cast in them.....
For a stock stroke cub they should be 4.038 and piston .018 in the hole with a .022 gasket
For 4 mil cylinder they should be 4.079 and piston .010 in the hole with a .022 gasket