OKO 21mm Carb Jet Size

[Smt]

Any idea what size main and idle jets would suit engine with Zeda Dio Reed top end.

The 10 piece sets on Ebay run
main 100-140
idle 32-55

Zeda site states look on ebay for jets, they don't mention sizes.

 

[machanic]

Unless someone has done your exact mods it would be hard to say but most of the carbs for 50cc two strokes run 120-125 main and around 50 slow jet. Hope this helps, it's a good place to start.

 

[Smt]

Thanks just what I was looking for.
Had no idea what sizes were in ball park. Sounds like Ebay Kit will be good.

Setup will be Zeda Dio/Reed head,
https://zedamotorsports.com/collect...ion/products/ported-bianchi-dio-cylinder-reed
mz65 pipe,
21mm OKO

 

[machanic]

Sounds like you are trying to go fast!!

 

[Smt]

Yeah why not. All in good fun
My other "Motorized Bikes"
1970 Cat Eliminator Minibike
Under Sheet - 2013 KTM 990 SMT

 

[machanic]

Yeah! I have a few dozen bikes of my own, some of my first motored riding was on a Rupp mini bike, a long time ago!

 

[Street Ryderz]

Any idea what size main and idle jets would suit engine with Zeda Dio Reed top end.

The 10 piece sets on Ebay run
main 100-140
idle 32-55

Zeda site states look on ebay for jets, they don't mention sizes.

I'm pretty sure that carb come stock with a 45 idle jet and 105 main.

 

[Smt]

Funny, the scrariest to ride is the Cat

 

[Smt]

I'm pretty sure that carb come stock with a 45 idle jet and 105 main.

Do you think stock sizes are in ballpark for tuning?

I found these with a smaller range

https://www.treatland.tv/OKO-keihin...f-main-jets-p/oko-10-pack-main-jets-small.htm

 

[machanic]

They are most likely ball park for a stock motor, piston port, reed valve, expansion chamber are major performance increases for a two stroke, but my experience is with larger motors.