92 Beta Supertrial 240 forks

[ungawunga]

Can anyone point me to a manual for this bike? I need to replace the fork seals, and need to know what weight and how much oil to use.

Thanks

[minislim]

the forks should be 5W oil & 200cc in each leg.

i got this info from john lampkin imports. as for a manual i've been on the lookout for one too and still not come across one. they're either very rare or where never made.

[htrdoug]

If these are the Beta forks with a squarish lower sliders(I have Beta forks on my Fantic) then I find even with the thinnest viscocity oil I can find they still are a bit sluggish in operation,5 weight feels too thick in mine but I like a soft,snappy fork action,next step is internal modifications for mine over the off season.I'll do modifications to the damper rods to split the duties for each side and speed up the action and allow individual tuning of rebound and compression,plus if I can find a spring that will do the job I'll go with a single spring.

[ungawunga]

the forks should be 5W oil & 200cc in each leg.

i got this info from john lampkin imports. as for a manual i've been on the lookout for one too and still not come across one. they're either very rare or where never made.

Thanks. Someone sent me this, which lists 300cc and 280cc.

I'll use something in between.

The 70:1 is good info as well. I've been using 50:1 and it's smokey. Previous owner used 32:1. Funny, I always used 28:1 in the higher reving racebikes I've run in the past.

Edited November 23, 2010 by UngaWunga