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View Full Version : #42 slow jets / pilot jets / idle jets


Gba
03-06-2008, 06:41 PM
Hey guys.

I've been reading through the forums regarding the #42 slow jets. I just wanted a bit of clarification about the advantages (and possible disadvantages) of replacing the stock slow jets on the '03 ACE with the #42's from the 1100 AERO.

I've got parts on the way. Starting with throwing on the Cobra Low-Boys, then I want to do the Bean box and rejet.

It sounds like the larger slow jets make it easier to fine-tune the idle mixture, but I'm not clear on this part. This #42 slow jet is an advantage because you don't need to unscrew it as many turns? I feel from the descriptions that the stock slow jets have to be unscrewed so far that they risk falling out of their housing.

Is this an accurate description? Is this the only reason replacing them is a good idea - so that you don't unseat the stock ones trying to richen the idle mixture? Anything I'm missing here?

Thanks for the help, gents.

s3v3rth3stars
03-06-2008, 08:25 PM
you have it all down. its just so you can tune the idle cicruit without having to turn the adjustment screw out so far. good luck on your mods.

p.s no disadvantages have been recorded so far

Gba
03-06-2008, 11:51 PM
Thanks, Sever. Wasn't too sure on that. Guess I'll order those also. Am I correct that I only need 2 of them?


EDIT: Just for anybody searching for the #42 part numbers, I'll reprint them here again. To quote Sever from an earlier thread..."part number is for honda aero 1100 #42 jets... 99103-mt2-0420 "

s3v3rth3stars
03-07-2008, 07:47 PM
yeah, you will have 2 main jets and 2 idle