Changing to pz22 carb

Lkerley

Member
Working trying to get an "intake" for my raptor and doing away with the tank not having much luck.I have seen one in kit form pz22 carb,intake and filter have not found just the intake.As far as a carb which would be best to go with pz22 or mikuni 22 maybe a 26 mm
The motor is a s/a build .015 over,96-3,big valves on 87 octane a strong motor not used in kart racing.
thanks again for any help.
 
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flattop1

Dawg 89
Sweet . 22mm is 22mm , i dont see why the pz would not work .
Jet avalibility might be a concern . I would probably solder them shut and drill them any how 😉 .
 

Lkerley

Member
Sweet . 22mm is 22mm , i dont see why the pz would not work .
Jet avalibility might be a concern . I would probably solder them shut and drill them any how 😉 .
Will a pz22 or mikuni be able to supply enough gas with the stock jets,or would a 24mm just be Overkill.
 
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CarlsonMotorsports

Premium User
Stock 22 jetting should be fine with as small of cam as you have. If anything, I'd take the pilot up a thou. at a time to help it throttle better.
Now, you mentioned big valves -- are your intentions to "grow" this engine a step at a time?
If that's the case, then step up on carb now and then do the cam to match the valve size that you have.
You do not need big valves with a .233" lift cam is why I am asking.
Depending on your valve size and carb selection though, you will be able to use a 28 carb at some down the road.
Getting a manifold to fit a Mikuni to a flathead should not be a problem -- I would think most larger kart shops and engine builders would have them in stock. For sure Mark has'em.
I just shipped a stock appearing PZ22 yesterday.

-----
🏁Thanks and God bless,
Brian Carlson
Carlson Racing Engines
Vector Cutz
www.CarlsonMotorsports.com
Carlson Motorsports on Facebook
30 years of service to the karting industry
Linden, IN
765-339-4407
bcarlson@CarlsonMotorsports.com
 

Lkerley

Member
Stock 22 jetting should be fine with as small of cam as you have. If anything, I'd take the pilot up a thou. at a time to help it throttle better.
Now, you mentioned big valves -- are your intentions to "grow" this engine a step at a time?
If that's the case, then step up on carb now and then do the cam to match the valve size that you have.
You do not need big valves with a .233" lift cam is why I am asking.
Depending on your valve size and carb selection though, you will be able to use a 28 carb at some down the road.
Getting a manifold to fit a Mikuni to a flathead should not be a problem -- I would think most larger kart shops and engine builders would have them in stock. For sure Mark has'em.
I just shipped a stock appearing PZ22 yesterday.

-----
🏁Thanks and God bless,
Brian Carlson
Carlson Racing Engines
Vector Cutz
www.CarlsonMotorsports.com
Carlson Motorsports on Facebook
30 years of service to the karting industry
Linden, IN
765-339-4407
bcarlson@CarlsonMotorsports.com
yes.next rebuild 107ss but that's it as far as bigger...I did get an intake from mark.so you think 28 mm now? will that be to much for the motor right now? thanks
 

CarlsonMotorsports

Premium User
yes.next rebuild 107ss but that's it as far as bigger...I did get an intake from mark.so you think 28 mm now? will that be to much for the motor right now? thanks
Yes, it is more than enough for your cam, but depending on the size of your valves/seats, I think it would be a much better match than the 22. The 22 is a nice fit for stock valves and stock cam.
 
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