What to upgrade next

[Drewsky]

Hey guys. Ive got a ZB jet80 and wanted to know what my next upgrade should be. Ive already ported the intake and ive got an expansion chamber on it. I also shaved 1mm off the head. Sowhat is next.

 

[Deleted member 22467]

balanced crank then additional port work.

 

[Deleted member 12676]

Extend the intake tract if you want more low end power.
Put a high performance ignition system on it.
Put a good carburetor on it.

 

[Drewsky]

I got the high performance ignition and a h/p carb. So next is a longer intake?

 

[Deleted member 12676]

What small engines lack the most is umph, which the longer intake tract takes care of.
Click on my signature link and read the specifics on this topic.

 

[wheelbender6]

Add a shift kit if you haven't already. it will help you keep that engine on the pipe.