Snap throttle engine stalling, but bike runs fine

Matt6288 · 05-31-2024, 08:54 AM

Hello,

I've got a brand new '24 Hawk 250 with less than 600 miles on it, and I installed a brand new PE28mm Nibbi carb to upgrade it. I didn't notice this for the first few rides but not long after upgrading the carb, I noticed a weird problem.

The bike idles and runs perfectly. On the highway, it has healthy acceleration and will reach top speed no problem. If I rev the engine gradually up to full throttle, it revs up just fine. But if I snap the throttle, from closed to fully open instantly, the engine stalls.

Now I have no prior experience working on carburetors, but I'm learning. I've read lots of things and watched lots of videos, and have been playing with my adjustment screws, but no matter what I do, the problem isnt going away.

Any suggestions?

05-31-2024, 08:54 AM	#1
Matt6288 Join Date: Apr 2024 Posts: 4	Snap throttle engine stalling, but bike runs fine Hello, I've got a brand new '24 Hawk 250 with less than 600 miles on it, and I installed a brand new PE28mm Nibbi carb to upgrade it. I didn't notice this for the first few rides but not long after upgrading the carb, I noticed a weird problem. The bike idles and runs perfectly. On the highway, it has healthy acceleration and will reach top speed no problem. If I rev the engine gradually up to full throttle, it revs up just fine. But if I snap the throttle, from closed to fully open instantly, the engine stalls. Now I have no prior experience working on carburetors, but I'm learning. I've read lots of things and watched lots of videos, and have been playing with my adjustment screws, but no matter what I do, the problem isnt going away. Any suggestions?
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