MOPED ARMY

I'd bet your idle is too lean. I run a 45 idle jet in my 65 metrakit on an e50. I know we're talking different engines, but you need to lube 5cc more than me, and you've got a smaller idle jet. I'm thinking bringing that up to at least a 45, if not 48 and tune from there.

I would not listen to mijunkin about the idle jet, its totally different situation and nothing can be inferred from his setup related to yours. Plus the idle jet has very little effect on half throttle.

I would question your 3 needle, that is a weird needle. The tuning guide recommends using a 7, 8, or maybe 9 needle unless you know what your doing in regard to the needle. The needle will definitely effect your progression around half throttle.

i assumed needle three was 3rd from the top. i dunno

Just fyi

a W3 needle is near identical to a W9 exept the main needle width is 2.45 versus the W9's 2.5. If anything a richer needle than the w9 or w7.

If i were you id start at the richest setting on yr needle. Put the clip at the bottom notch so you are richest and work down from there.

Also, you need to be sure that the 90 is the right main jet. As that can affect your needle tuning. If you haven't plug chopped then that is the first thing you should do, as its pointless to tune your needle if your main isn't figured out first.

good luck dude.

Alright, so i've got it pretty close. Up jet to 96, 45 idle, w9 needle 3rd notch, lowend is still lacking a little. I checked the spreadsheet and it seems most are running w7's , so i've got one in the mail. Hopefully that will help out some. What do you think?

I have a w9 in there, clip on the 3rd notch, i have the top end a little rich, 96 main. 3 down from 4-stroke , and a 45 idle, 2 turns out. It's running pretty good on the top end but i feel like there is more mid/low end to be had.

I figured a w7, leaned out, might give me what i'm looking for in the low end. The only reason i'm thinking of trying a w7 is that there seems to be a sweet spot that i can't get to with the w9, you know? Hell maybe i'm totally wrong and this is just the way it runs. Reading the spreadsheet and posts where people are saying they have "great" low end makes me think there is more tuning that can be done to wake it up.

Checking those tomorrow. I don't think it's a timing issue, everything seems fine there. I did consider the clutch but thought if i got the carb close enough to what others were using i could rule it out then move to the clutch.