I didn’t listen! Need help now.

[jetsteve2011]

I’m running the Yasuni Z for now and I have the stage6 1400. But I’ve got to replace my stock crank before I can use it.

[jetsteve2011]

Ok, I’ve made a lot of progress. I’ve actually been able to ride it and it sounds awesome and definitely has some power. Here’s where I am.
2000 Zuma vertical Minarelli. (37-42mph stock)
Athena sport kit 70cc
Yasuni Z exhaust
Stage6 big valve intake (with the dual two piece reeds)
Polini cp 21mm 102 main jet
Malossi la furia rossa over range variator (6 5gram weights
Stage6 mk2 clutch (out of the package no adjustments or weights added yet)
Stage6 433gram clutch bell
Yellow Malossi spring
Polini tach/temp (cross threaded plug & in frustration broke my temp ring trying to remove)
Need: crankshaft & taller gears next(I have many questions about gears)

I don’t have anything to compare to as this is my first build, but it’s obviously more power than before. It seems to sound odd at 1/4-2/3 throttle kind of a sputtering sound. At wot it goes away and sounds great!! At 5-10mph if I goose the throttle a couple of times then wot it, it will lift the front end off the ground. One question I have is if it ran 40mph before (stock is 7k-9rpm??) then why @40mph I’m at 10800-11rpm. Haven’t been able to test top speed yet. But I’m sorta scared because the rpms get so high like 13-14k and still accelerating. The gauge records the highest reading and shows 17800 but idk about that🤨

[smallenginevelocity]

I though that arrow was suppose to point down to the exhaust on the piston

[jetsteve2011]

It is and it is

[smallenginevelocity]

Jan 26, 2019 3:59:35 GMT -5 jetsteve2011 said:

It is and it is

Cool because I’m literally installing mine right now

[jetsteve2011]

I used permatex gasket sealer and had air leaks 3 times then ordered yamabond 4 and no leaks and ran great. Only had to take apart because of spark plug fiasco.