I got my 250r almost ready for the season but im debating if i should used my stock 34m carb. Its bored 20 over with a mid port and polish job, full DG exhaust, delta vfores reeds,and a k&n air filter. Do u think i need a bigger carb for this setup???? [img]images/graemlins/givemebeer.gif[/img]
You don't 'need' a bigger carb for the setup, just make sure its jetted correctly. I have a 240 kit on my blaster with a LOT of other stuff done to it, and I'm running the stock carb on it, runs GREAT. You will notice a power gain with the bigger carb, but its not necessary by all means.
Just my .02
I have a bigger carb on mine, 1988 TRX 250r. I run a stock motor with just reeds and cr250 intake. I am using a 36mm carb and as long as you get it jetted right. It will make a difference. I also use a cr250 head gasket on it. K and N airfilter with pipe and no porting. Very reliable and has plenty of power. It works great for what I use it for. The stock carb will work fine the carb just compliments your intake system. More air and fuel in the intake does mean more power as long as you dont go overboard with it.