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Louie
Louie, Technician
Category: Motorcycle
Satisfied Customers: 11420
Experience:  25+ yrs. experience
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2004 polaris sportsman 700efi, runs, black smoke, bad idle,

Customer Question

2004 polaris sportsman 700efi, runs rich, black smoke, bad idle, will foul numerous spark plugs in an hour. have changed both injectors and harnesses, new boot from throttle body to cylinder head and still have same result. any other ideas?
Submitted: 1 month ago.
Category: Motorcycle
Expert:  Louie replied 1 month ago.

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

Initially, proposed preliminary tries (if have not been done):