I am running the Dellorto 19mm PHBG Race Carb on a Puch Maxi 65 Metrakit High compression Head, 3 shoe clutch, Roller Crank, Tecno Exhaust, and its Case Matched and i just rebuilt the bottom end with new seals and bearings and running a 15 tooth front sprocket, stock i believe 45 rear sprocket.
Here is the situation.
My buddy has the EXACT same set up that i am running.
EVERYTHING IS IDENTICAL.
my buddy's wraps up and takes off the line like a bat out of hell and has full power and amazing response through out the entire power band.
Runs a top speed of around 43mph give or take a few. No matter what he does to his bike it runs flawlessly.
Mine on the other hand wraps up really nice just the same as his, has the same top speed great response from just above 1/4 all the way up.
However when you wrap it up with a load on it (IE.. Sitting on it and starting to take off), its awesome for about 2 seconds and then it... well the only way i can describe it is what i believe is Bogging, until you get a little speed going and then it takes off really nice.
The "Bogging" sound Makes a DEEP DEEP Choking WAHHHHHHHH like a big animal dying?
We have done about everything we can think of.
We did advance the timing all the way one way...no difference and then went the other way with it...no difference however we plan to reset it back to stock, the way the manual says to, but have yet to do so. Not sure if that will make much difference due to our preliminary tests.
Tried every jet from 65 to 106 and really made no difference with the take off problem.
Any tips or ideas?
I am at a TOTAL loss.