MOPED ARMY

My bro has his case matched to a ZA50 with a 19mm PHGB, garelli intake, 84 main jet, and an estoril pipe. Stock 2 speed gearing. Tears off the line, but only hits mid 40's. If it were mine, I would gear it steeper and have it hit 50. Seriously, if you leaned back while hitting the throttle from a dead stop it might wheelie.

Good to know. my biggest concern is the idle jet might be too big, though it seems pretty responsive at 1/8 throttle and the mix screw set. The 78 jet is a bit rich, but I'm okay with that as my kit isn't 100% broken in yet either.

http://spreadsheets.google.com/pub?key=p_Ysahl1B79WHMUBbvCzNfg

word. thanks for the help! :)

Hi Chris, I was reading about your problems regarding timing and the idle jet. I advanced my timing slightly from stock so on the ride home tonight I will see what that does, perhaps the 50 idle jet will be fine with advance timing, we'll see.

if you're hitting honest-to-god GPS 45 mph on a metrakit with a 17mm carb and 16/40 gearing you're doing everything right . . . that means you're hitting like 9000rpm. people exaggerate on this site . . . you might be able to pull 10k rpm with a bigger carb and two months of slimfast, and that'll get you to 50mph, but you'll probably also have to lighten rotating mass (CDI) and regear . . . honestly fuck it, you have a fast bike, just enjoy it.

just to help with setups, i have a 19mm phbg (90 main, 45 idol, W6 needle) on a metrakit and 16/41 gearing that hits like 42 with a proma circuit and 45 with a boss. i ride mostly in manhattan (sea level).

I GPS'ed it at WOT, changed down to a 75 main. 39.9. WTF. I'd rant about how I can't ever seem to break 40 on a moped I've built, but I'm just too fed up right now. And while trying to tune it it got harder and harder to start now it won't start at all. I suspect it is the points have slipped and I was just so frustrated with the whole bike I stopped working on it. That and there were a bunch of orders to process.

Whats this about idle/running jets? I thought moped have just the one jet in a carb

^PHBGs have three, Dellorto SHAs have one, so do bings.

I need to GPS my set-up, My bike computer says 46. Guys from work say i was doing 50 cause they were behind me so IDK my real speed.

my unmodified estoril does 60

yeah. It rips on the mid range... Mine is topping out at 43-45 on flat, faster down hills with 16/45 gearing... I like it that way though... I hear if you pull out that restriction that you get more top and don't loose any mid or low... I want to try it...

the same bike that has the strange carb has 1" removed from the header and restrictor removed and the silencer straightened. It really helps smooth out the top end. I'm not sure it gave a huge improvement in speed but it really improves the feel at the upper rpms and didn't kill anything in the lowend.

I have ran about 3 gallons of 32:1 - regular 2 stroke oil

pre-mix through my MK65 kit.

When do you suggest to switch to Synthetic & what mixture

40:1 or 50:1 ??

if you wont your kit to last fo a long time go to 32:1 synthetic i am runing 25:1 hitting 50 with 18/45 gerars i might be lossing like 2 or 3 mills on the top