Robert Walker

iTrader: (74)

I got an Orion CRF .21 engine with a bad Carb and I want to replace it. I am having a hard time finding an Orion carb and I would like to find an alternate Carb that will fit. Does anyone know if an OS carb will fit? Maybe some one will take a minute and post the size of the carb fitting for me?

I would be interested in any help I can get to find another carb.

Robert

awdcameolsx

iTrader: (36)

My friend put an RB carb on his. IDK if that helps but I know that one fits. I can go measure one of my OS ones give me a sec

awdcameolsx

iTrader: (36)

Ok the OS with thermal insulator on it is 14.96mm by my calipers. Hope that helps. If you need one I have a OS carb I could sell ya just pm me.

houston

iTrader: (96)

if its the picco based engine , only picco carbs , if its the extech based then nova or OS will work . (nova carb preferably)

Robert Walker

iTrader: (74)

Thanks a bunch. I will measure my Orion when I get home.

Racecrafter

iTrader: (25)

My guess would be that you are having problems with the US Spec CRF? and the barrel gets stuck at 1/4 throttle?

Call Orion, they know about the problem. Insist on an Original, 1st gen Orion CRF carb. to replace yours.

If they won't work with you we can machine out the problem.

Robert Walker

iTrader: (74)

That is good to know. I think I will need a picco carb then.

Thanks for everyones help.

rageworks

iTrader: (47)

I know the CRF.21 is a Picco based engine.
Picco based engines have a smaller dia.
lower carb body than Novarossi and O.S.
based engines. So you should be able to
use any of the Picco Evo2, Evo3 or Jammin
JPX carbs.