carb ????

[78 Sprint]

I had a bad stumble when i would stab the throttle from a dead stop I up graded to the 50cc acelerator pump and put in a 31 discharge nozzle and it still has a very slight stumble, lots better than it was my question is should i go to the next size discharge nozzle or play with the cams i still have the stock white one with the 50cc pump thanks for any in put

[Wicked Performance Boats]

Is the acc pump adjusted correctly? Open the throttle wide open and push on the acc pump arm, do you have approx .020 freeplay when you push on the arm before it bottoms out? Budlight

[78 Sprint]

I'm pretty sure i have it adjusted right i can slide .020 feller gauge in there no problem.

[Wicked Performance Boats]

If that doesn't do it, then try accpump cams or nozzles. Remember, the smaller the nozzle the faster it squirts but less fuel, the larger the nozzle the slower and larger the squirt. good luck Budlight

[78 Sprint]

thanks for the advice