Hi I,m Richard I live in Crawley I have a couple of scooters at the mo Longjai digita 2T ,new main bearings and top end , running well soon to sell and my tuned Wanygye , minarelli 2T , 70cc , Nakaru , technigas , sport variator , bored out carb , and maybe another if I'm lucky bidding tonight going to post about the Wangye , cause maybe someone have some advice for me , its been so messed with someone might have an idea what to try next image I couldn't rotate sorry ?
Like in this vid , but not so severe .. seems no one rates doing this in the comments , I have bad flat spots mmmm
Oh so its just a sort of flowed venturi. Not sure it is noticeable on a scoot. I flowed my old suzuki 2 stroke and gained like 25% more power.
Polishing your combustion chamber and exhaust port will get you a little better power and efficiency. I polish all my piston crowns on my motors
Ah yes, but there is a BIG argument about polishing ports, especially the intake. Some say it actually decreases the air flow having a polished surface as it doesn't "roll" the air as it travels through. Personnaly I don't do the intakes but I do polish the exhausts.
Gent's My carbs like not 15mm it's like 20mm after I opened it up , went right through so guess the venturi effect is reduced I'm going to post in the tuning section , trying to find the vid which inspired me to do it ..