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Chris, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 6666
Experience:  20 yrs. experience as motorcycle, dirt bike, ATV, UTV and watercraft technician.
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. I have a 1985 Kawasaki en450 which starts and ticks over

Customer Question

Hi. I have a 1985 Kawasaki en450 which starts and ticks over but when you open the throttle it will not rev, just splutters pops & bangs. I have had carbs apart and cleaned everything also adjusted the float tangs so more fuel could get in, it still does the same thing also if I hold full throttle and manually squirt wd40 it revs up no problem. Is this just a carb problem or something else?
Submitted: 3 years ago.
Category: Motorcycle
Expert:  Chris replied 3 years ago.
Chris :

Do you have the air box fully assembled and a filter installed?

JACUSTOMER-pr4u5qh6- :

Hi, No it has got k&n filters.

Chris : Once the stock air box is removed, your carbs will need to be rejeted. This is the reason for the issues you are experiencing.
Expert:  Chris replied 3 years ago.
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