MOPED ARMY

so are you running stock pipe?

what size is your intake & intake port?

intake port looks to be about 14-15mm and the intake is drilled to 14.5 like the carb.

that sounds about right for that setup, with some moddesst porting, new rings, high flow filter of some sort, HC squish head, proper timing, and a regear, ya should be able to hit 40-45 pretty easy

-bad lowend can be fixed with gearing and more compression, proper timing too

-then to combat your lost topend with your gear change you can get a little more agressive with your exhaust porting as to make use of the much larger than stock headder you have on that biturbo

-alot of the power that's available in the biturbo and most cheap pipes is lost because the waves and flow are messed up due to the exhaust flange not matching the pipe, so in order t use the pipe for all it is, ya need to do your best to match the two,

-1, by opening the flange to match the 28mm of the pipe

-2, by trying to widen the exhaust and raise it a bit to keep that flow pattern as Parallel as possible so as to not change that wave or flow until it hits the first cone of the functional portion of the pipe,

-3, read up on exactly how far you can go with the port, like keeping an eye on how close the pins on the piston are to the port and to not short circuit the flow by invading the Transfer's space, and chamfering

Hmm.. how does your spark plug look?

sounds like your jets are wrong. some times they get mixed up when being made. especially the knock off ones. compare them side to side. if they dont look exactly the same there is something wrong. human eye wouldnt be able to detect a 70 compared to a 72. at least mine cant.

why not just buy some more jets? dont tune your air to your jets, tune your jets to your air. get me?

Not necessarily so. In addition to a correct air/fuel mixture, proper airflow also controls fuel intake _velocity._

yeah.. I trust Treats with my life. they always send me the right stuff.

anyone have any 72 and 74 jets they want to trade for a brand new 15 tooth front sprocket? I bought the 15 tooth but what I should have bought was a 17 to increase my speed.

I would be ok with 40 with the setup. Like I said,

I want to buy another Puch this fall for my winter project and want to trick it out. So I will have one tuned semi stock reliable Puch and then my hot-rod Puch project to play with. I just want to make my Maxi Luxe do about 35-40 and be reliable enough to take it to the store, work, and long back country road rides.