Planet Minis

ancona2 · 10-08-2009, 10:22 AM

So I bought this crf 50 exhaust for $50 shipped and a UNI airfilter to go along with it. I live in socal and will be riding at sea level at about 70 degrees, I'm wondering what size main jet to buy so I can dial this thing in properly. I have my needle clip all the way down and about 2.5 turns out on the fuel screw. Can anyone tell me what to get? 60,62,64 main jets??? thanx in advance

tblumer · 10-10-2009, 10:47 AM

I'd get a bigger carb, your flowing alot more air now. I'd get that 16mm from DrATV or a 17mm off eBay

schofell84 · 10-10-2009, 11:17 AM

see if you can find an 18mm with a jetting kit included, dont be afraid to call around. hit up a few of the vendors here, im sure they will be more than willing to help out.

ancona2 · 10-10-2009, 08:55 PM

ok thanx. First I'm going to try a 64 main jet, i'll let u know how it goes. will the bigger carb help out a lot with performance? will i have to port match the intake to the bigger size carb?

ancona2 · 10-15-2009, 05:37 PM

so i installed the 64 main and raised the clip 3rd from the bottom. now it runs perfect. thanx

10-08-2009, 10:22 AM	#1 (permalink)
ancona2 PM Newbie Join Date: Oct 2009 Posts: 3	jetin my ATC with new exhaust and UNI So I bought this crf 50 exhaust for $50 shipped and a UNI airfilter to go along with it. I live in socal and will be riding at sea level at about 70 degrees, I'm wondering what size main jet to buy so I can dial this thing in properly. I have my needle clip all the way down and about 2.5 turns out on the fuel screw. Can anyone tell me what to get? 60,62,64 main jets??? thanx in advance Attached Thumbnails

10-10-2009, 10:47 AM	#2 (permalink)
tblumer PM Newbie Join Date: Mar 2009 Posts: 59 My Mood:	Re: jetin my ATC with new exhaust and UNI I'd get a bigger carb, your flowing alot more air now. I'd get that 16mm from DrATV or a 17mm off eBay

10-10-2009, 11:17 AM	#3 (permalink)
schofell84 2nd Gear Member Join Date: Feb 2007 Location: Ogdensburg Posts: 278	Re: jetin my ATC with new exhaust and UNI see if you can find an 18mm with a jetting kit included, dont be afraid to call around. hit up a few of the vendors here, im sure they will be more than willing to help out.

10-10-2009, 08:55 PM	#4 (permalink)
ancona2 PM Newbie Join Date: Oct 2009 Posts: 3	Re: jetin my ATC with new exhaust and UNI ok thanx. First I'm going to try a 64 main jet, i'll let u know how it goes. will the bigger carb help out a lot with performance? will i have to port match the intake to the bigger size carb?

10-15-2009, 05:37 PM	#5 (permalink)
ancona2 PM Newbie Join Date: Oct 2009 Posts: 3	Re: jetin my ATC with new exhaust and UNI so i installed the 64 main and raised the clip 3rd from the bottom. now it runs perfect. thanx

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