Carburettors urgent

momoskuxx, Jan 4, 10:55pm
i was wondering if it was possible to put a 600cc carb on a 1981 Yamaha sr 250cc please help thanks :)

beart0y, Jan 5, 6:51am
Yes, however it may not run well. The airflow, through the bigger throat, may not atomise the fuel properly. It would also need some playing with the jets.

momoskuxx, Jan 5, 11:22am
playing with jets do you mean getting smaller jets

budgel, Jan 5, 11:25am
Yes, but possibly more importantly the air wouldnt be passing them fast enough for the change to work well.

Much larger carbs on small engines work best at wide open throttle, not so well at lower revs when there is less air flowing.