Hello everybody
I have a 1998 Yamaha Jog here in Chicago USA. It has the horizontal Minarelli engine that I am going to build for street use.
Here is somewhat the game plan:
70CC Aluminum kit
21mm Carb
Sport Exhasut
Variator
Clutch
Intake+ CF reeds
Cranck???
Thats about it for now.
Here is the question
70cc kit? I was looking at Polini Evo but it says 15:1 Comp ratio! Would I even be able to run that on 93 octane gas (thats as high as it goes here)? If not what would be a good alternative? Malossi is hard to get as SIP wont shipp it to the States :/
CRANK!!! this is a grey area for me. I know stock I got the 10mm pin and I would imagine it wont last too long with a 70cc on it, so what would be a good streetable cranck? should I go with a 12mm?
Variator will most likely be Polini as well, maybe Hebo
Hebo clutch
21mm Dellorto or Polini carb (any advice on main jet would be appriciated)
Koso / Stage 6 intake with Carbon Fiber Reeds
Spark plug... Do I want to run a cooler plug?
What do people do with the ignition and timing on these?
Also do I need to premix more oil into the gas now? If possible I would like to keep it on auto-mix.
EXHAUST! Now this is a big one, I want MID RANGE! it will be very important for me as I will be doing a fair ammount in traffic. What are some exhausts that are less free flowing. I got a shitty Black Dragon now but it will most likely change.
Any help/advise is appriciated. Goal here is a Dyno proven 15 horses and a top speed of 70mph while still being a street scooter that I ride evryday.
Cheers
I have a 1998 Yamaha Jog here in Chicago USA. It has the horizontal Minarelli engine that I am going to build for street use.
Here is somewhat the game plan:
70CC Aluminum kit
21mm Carb
Sport Exhasut
Variator
Clutch
Intake+ CF reeds
Cranck???
Thats about it for now.
Here is the question
70cc kit? I was looking at Polini Evo but it says 15:1 Comp ratio! Would I even be able to run that on 93 octane gas (thats as high as it goes here)? If not what would be a good alternative? Malossi is hard to get as SIP wont shipp it to the States :/
CRANK!!! this is a grey area for me. I know stock I got the 10mm pin and I would imagine it wont last too long with a 70cc on it, so what would be a good streetable cranck? should I go with a 12mm?
Variator will most likely be Polini as well, maybe Hebo
Hebo clutch
21mm Dellorto or Polini carb (any advice on main jet would be appriciated)
Koso / Stage 6 intake with Carbon Fiber Reeds
Spark plug... Do I want to run a cooler plug?
What do people do with the ignition and timing on these?
Also do I need to premix more oil into the gas now? If possible I would like to keep it on auto-mix.
EXHAUST! Now this is a big one, I want MID RANGE! it will be very important for me as I will be doing a fair ammount in traffic. What are some exhausts that are less free flowing. I got a shitty Black Dragon now but it will most likely change.
Any help/advise is appriciated. Goal here is a Dyno proven 15 horses and a top speed of 70mph while still being a street scooter that I ride evryday.
Cheers