Thomas Spann

Joined:
2009-06-01 04:19:41

Posts: 9

Posted:Wednesday 08 July, 2009 8:37 PM

quote

Subject: Re: Any carb experts here?

I recommend sticking to what the original designers specified for the bike for two reasons:

a. Keep a vintage bike as much original as possible.
b. Why overstress the parts by pushing more horse power out of it?
The need for speed is understood as part of the motorcycle craze, but
theres a point where keeping a bike in good shape has value.

Ive been told to drill holes in my SL125's air box, get a reworked
cylinder head, new carb with more CFM, and a bigger piston kit in order
to get more power. While all of this is may improve performance, it
comes at a cost of both money and engine and impacted mechanical parts
MTBF and life span. For a race, go for it. But for a collectable, I dont recommend it.

As for the specific answer to your CFM and carb question, I cannot help you there.