This is pretty crucial from what I know, the jets can be adjusted? Too rich a fuel mixture can scar the cylander walls, by burning off the lubricant, this is what (if I remember right) the clymer manual said anyway.
Clymer Manual m356-5 1985-06, page 252-3 Carburator Service.
"...Changes in (jet needle position) should only be attempted if your experienced with this type of 'tuning' work; a bad guess could result in costly engine damage or, at least, poor performance. If, after servicing the carburetor and making the adjustments described in this chapter, the bike does not perform correctly (and assuming that other factors affecting performance are correct, such as ignition component condition, etc.), the bike should be checked by a dealer or a qualified performance tuning specialist."
Last edited by ourselfish; 06-27-2011 at 12:15 AM.