jetting question?

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Apr 7, 2015 | 05:15 PM

glw165

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From: ohio

jetting question?

95 heritage 80ci evo, 1st Harley just bought it few months ago, seemed like it popped thru carb sitting at a light blippin the throttle, also barely get it above 70mph just flat, took carb bowl off had a 42 slow jet and a 165 main, I installed vance short shots and kn filter and I put in a 48 slow and 195 main, really brought it alive, but now pipes are lil darkened already inside the end of them, and I just checked mileage 3.1 gallon at 91 miles which is around 29mpg not good!, up top it will go on past 70mph now but seems boggy up there, not bogging just takes a while to go on past?im thinking maybe the 195 main is too much? possibly the even the 48 slow too much?

Apr 7, 2015 | 05:20 PM

Tampa Fatboy

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From: Sunshine State

42-45 slow jet & 175 -180 main jet

Apr 7, 2015 | 05:22 PM

glw165

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I will try that, thanks, I wanted a 46 to beigin with but my local hd dealer went from 42 which is what was in it already to the 48 which is in it now

Apr 7, 2015 | 05:44 PM

Tampa Fatboy

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Just wanted to add, jetting depends on your motor mods Stock would be the jets I suggested above. Also, you may have to shim .030 under the stock needle. Good luck with that.

Apr 7, 2015 | 06:15 PM

glw165

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all ive done is pipes and kn ac, prev owner said had cams replaced but i have noway to confirm this, runs really well with 48/195 other than lil slow 70 mph up, and 28mpg i dont like lol, butvthe 42/165 that was in it was just a dog no get up

Apr 8, 2015 | 03:52 PM

glw165

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cant seem to find a 45 or 46 slow jet, and as luck would have it hd dealer here same for main jet 165 to a 195,

Apr 8, 2015 | 04:46 PM

Tampa Fatboy

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glw...it's been years since I re-jetted a carb or dialed one in. Try posting your questions to the link below. There's someone in there who does these things on a daily basis not to mention knowledgeable with todays market and tech tricks, GL with your project.

https://www.hdforums.com/forum/carburetor-related-60/