Thread: Jetting 46mm carbs
06-28-2006, 01:14 PM #1
Jetting 46mm carbs
While I wait on Pro Tec to get me a dome I have to run a 38cc head/dome setup.
When I get the 42cc dome I will run them it will save me $2.00 a gallon for gas and give me more reliability.
After that it wil go back to stock compression to be sold.
I have a 99GP1200 with a Pro tec C-3 head on it.
It has stock carbs with stock jetting and adjuster settings.(air box on)
What jetting changes are needed for now till I get my other dome.
I do have 46mm carbs with choke remove on a R&D intake I could thow on there and run untill then but I need specs.
06-28-2006, 02:35 PM #2
- Join Date
- Dec 2005
- Beaufort, SC
I'm running a set of Buckshot modified 46 mm mikuni's with a Riva ported cylinder. My pop-off was a little too high w/ a 2.0 n/s and 95g spring (ski fell on its face when you'd nail the throttle after riding it hard for 10 mins, did fine when regular riding though). I got some 2.3's to try this year.
They came with a 125 pilot and a 115 main, then I switched down to a 115 pilot and was picking up rpms up top. Before I really had a chance to tune it (there was a big sandbar party that I wanted to go to bad), I let a buddy of mine ride it to the sandbar and within 5 mins of him never letting off the throttle (not even when airborne), it was done. The cylinders didn't seize, but all 3 of the pistons melted down to the top ring, right in front of the exhaust port.
That was also with running a manifold that didn't have the cylinder connecting grooves filled it.
That's been my experience so far. Hope this helps a little.
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