J
Jim H
Guest
Hey Augi, I just went ahead and purchased the hp upgrade kit for my tanaka 40 which includes the power pipe, velocity stack and carburetor. A bit pricey but I've been curious as to how much more performance I can get out of this engine. The stats say an additional 1000 rpm's and a 3-4mph increase...should be interesting. I saw a video on you-tube where a guy showed a performance tip re: carburetor adjustment at the cable which showed the butterfly not completely open when the throttle was fully pulled...maybe check that tweak?