Hawk 250 Rpms jump and bike jerks while cruising

Swoleosaurus Rex · 01-21-2018, 11:51 PM

I recently bought a 2015 hawk 250 off Craigslist with 2000 miles on it. The guy I bought it from said he did his own maintenance on it but I'm not sure what exactly he did to it.

Recently, I've been having problems with it jerking, backfiring and the rpms jumping while cruising at about 50mph is 5th gear. This only happens when the engine is warmed up and I've been riding for about 5 minutes. I took the carb apart (I believe it's a makuni aftermarket carb) and cleaned it. There is a 100 fuel jet in the carb at the moment.

I live in florida so this is my main source of transportation for the next couple months so any suggestions will be much appreciated!

01-21-2018, 11:51 PM	#1
Swoleosaurus Rex Join Date: Jan 2018 Posts: 1	Hawk 250 Rpms jump and bike jerks while cruising I recently bought a 2015 hawk 250 off Craigslist with 2000 miles on it. The guy I bought it from said he did his own maintenance on it but I'm not sure what exactly he did to it. Recently, I've been having problems with it jerking, backfiring and the rpms jumping while cruising at about 50mph is 5th gear. This only happens when the engine is warmed up and I've been riding for about 5 minutes. I took the carb apart (I believe it's a makuni aftermarket carb) and cleaned it. There is a 100 fuel jet in the carb at the moment. I live in florida so this is my main source of transportation for the next couple months so any suggestions will be much appreciated!
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