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Louie, Technician
Category: Motorcycle
Satisfied Customers: 12581
Experience:  25+ yrs. experience
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I have a Suzuki gw250 2003 efi.. cant rev past 7000rpm. the

Customer Question

I have a Suzuki gw250 2003 efi.. cant rev past 7000rpm. the sparks are relatively new. what could be the problem please!
JA: What is the model of your '03 Suzuki?
Customer: inazuma
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: I would love to fix it myself. it did this before then I changed the plugs. solved the prob but not perfectly...still couldn't rev past 9500
JA: Anything else you want the mechanic to know before I connect you?
Customer: that's it
Submitted: 10 months ago.
Category: Motorcycle
Expert:  Louie replied 10 months ago.

Hi and welcome to the site, I’m Louie. Sorry you had to wait awhile but I’ll do my best to help.

Initially, check and post back with the burn color of the old spark plugs to determine if the rich or lean.

Ensure that the original air box + filter are correctly installed with no possibility of an air leak.