I'm not at all into snowmobiles so forgive my ignorance, but I need some
info that you guys might be able to help me with!
I'm changing carburetors on a Rotax 503 from Bing to Mikuni 34 mm (in an
Can anyone here please inform me of what standard jetting, let's say a
Ski-Do with a Rotax 503 (52 hp) - dual carburetors (34 mm), comes with as
standard if I buy a new one?
This is what I need to know:
Main jets: ?
Needle jets: ?
Jet needles: ?
Pilot jets: ?
For what altitude and temps are the standard jetting calculated for?
Does it differs from country to country, or even between certain local
I have EGT's and I are prepared to rejet, but I need a reference point to
start out with.
Many thanks in advance.