I am in the process of building a street 1998 USA Spec Yamaha Jog with the horizontal Minarelli engine.
Don't know why but SIP wont ship Malossi to the US so the hard choice between Malossi vs Polini was made for me.
That being said I was leaning towards the Polini 70CC Evo kit but now I am having my doughts.
A) It says that it's a 15:1 Comp ratio and in Chicago pump gas is only 93 octane so... would that make the engine detonate?
B) I would like to keep the stock cranckshaft and the 10mm pin, would the evo kit (granted it would run on 93) be alright on the street with a 10mm pin?
C) what are some good alternatives?
Goal here is a DYNO proven 15HP at the wheel (Dynojet Dyno is what we use at the Harley Shop where I work)
Here is the projected set-up:
Polini Big Bore
Koso intake CF reeds
Polini variator (6 wqeights)
Thats it for now, what are the options for igniton management? Also please let me know if I overlooked something that is crucial to the build.
Thanks in advance