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Discussion Starter #1
I finished my snorkel 2in. inlet to a 1.5in hose into the airbox, K&N filter, Supertrapp exhaust (all discs installed), anyways, I put a 142 DJ mainjet, and lowered the needle clip to the last postion. It seems to run strong, anyone think this may be running a little rich? Best way to tell I guess is pulling the plug correct?
 

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dont have an answer for ya but I'd like to know as well cuz I wanna snorkel mine as well... let me know what the spark plug ends up like...
 

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jetting

I am running a 140 main jet. I couldn't find a 142. All I could find was a 140 and a 142.5 main. I lowered the clip on the needle jet to the 3rd notch from the bottom. Mine seems to be running excellent.

I might be a little lean and I'm going to check it again this weekend. I don't think I'll need to go to the 142.5 main, but I might lower the clip 1 more notch (2nd from bottom) to fatten it up a tad.

What does your spark plug coloring tell you?
 

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Discussion Starter #4
IM going to put a new plug in for this weekend, should put a few hours on it, and check how it looks after that.

I would go check mine now, but for some reason it decided to get all cold here in FL this week, to cold to mess around with it tonight.
 

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white is lean brown is good black is rich no 2 engine or carbs are ident where i will use a 142 another may use a 138 mm my 02 foreman with the same snorkle set up as your uses a 134 and lowered to the last adj. bored 50 over go figiure good luck
 

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How much differance does jetting the carb. make? I put a K&N air filter & noticed a little differance, but not much. Does jetting give it more power & make it go faster or what?
 

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Jetting and the a high flow filter Shoul dgive you moderate power increase and better throttle response.
 
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