HI All! I need to borrow from the collective wisdom of fellow TRX'ers once again:
Going back for another Dyno run on saturday (Dyno day, so just one run) & I'm in a bit of a conundrum as to what jets I whack in...
This is my current Dyno chart: http://trx850.motomaniac.net/forum/down ... &mode=view
My current main jet is 142.5 (standard) & I have 132.5, 135 & 137.5 jets on hand.
My needle (Factroy pro) is on the middle position, I have since dropped the needle down one.
So: I'm thinking I should fit the 132.5 main jet & drop the needle all the way down & see how it goes on the dyno.
My reasoning is, if it's too lean we'll know pretty quick & it shouldn't do any damage (Right???), but if I put another jet in & it's still rich, dropping it down will be a bit of an unknown & could be a risk in the longterm...
(The other option would be to put some new plugs in tonight, do the jetting & do a plug chop...)
Any thoughts?
Main jet setting advice
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- M.V.
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- phuk72
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Re: Main jet setting advice
Leave it alone, run it again and ask the dyno operator for his adviceM.V. wrote: Any thoughts?

- M.V.
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Re: Main jet setting advice
Yeah, that would be the sensible way! (Not really my style!)