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Help on jetting, runs like crap

2178 Views 7 Replies 5 Participants Last post by  bowz
05 foreman s. i put a hmf pipe, k&n, 170 jet 2 1/2 turns out on a/f screw. ran good but was rich on bottom but would cut off after idleing after 30 seconds or so so i turn a/f screw in to 1 7/8 or 2 ran good. this weekend put on snorkel 1 1/2 pvc all the way, it cutting out bad at top end, feels really flat on top, choke dosent work now either if u pull it out the bike cuts off. help, new to site, love it
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i put 1.5 inch snorkel and had no top end. Went with 2" triangle atv and now she runs great without jetting or anything. Have a jet kit and K&N waiting to go in though. Just for more power. Try 2" pipe and i bet shell run great
i really dont want because i'd have to cut a bunch off plastic. i've seen other people with 1 1/2 pvc and theres seem to run fine on here. just wandering what jet i need to run and where the a/f screw needs to be
i've got mine torn down right now puttin a 2in snorkel and am waiting on here for a reply. i know some people run 1.5 for 1/2 or less and then jump up to 2in, i can't recal off the top of my head any one running thows mods and haveing 1 1/2 all the way through, your movin more air through the eng now, that might have just put it over the top with the snorkel starving it for air with these new mods. my .02 hope this helps,

bowz
I HAVE A 2" TRIANGLE ATV SNORKEL AND IT WORKS GREAT I TOTALY SUBMERGED MY RIDE LAST WEEKEND AND HAD NO PROBLEMS IT IS GREAT. ALSO I DIDN'T HAVE TO CUT ANY OF THE PLASTIC ON THE SIDE OF MINE THE ONLY CUTTING I DID WAS THE HOLE IN THE TOP AND THE FENDER WELL UNDER THE FENDER OUT OF SIGHT. IN FACT YOU CAN BUILD YOUR OWN I GAVE A LIST OF PARTS AND SIZES ON ANOTHER POST IN HERE SOMEWHERE. IT WILL COST YOU ABOUT 30.00
probably not the best idea to publicly give out triangles design....
Throw a 165 main in that beast and let her rip
naaaaa its all right
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