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2005 kawasaki brute force 750,will only run decent with

Customer Question
2005 kawasaki brute force...

2005 kawasaki brute force 750,will only run decent with choke full on or partial backefiring threw exaust and some threw carb

Mechanic's Assistant: Where exactly do you think the noise is coming from? And how long has this been going on?

Backfiring threw exaust an some carb,going on for awhile

Mechanic's Assistant: What year is your 750?

2005

Mechanic's Assistant: Are you fixing your 750 yourself? What have you tried so far?

Yes,drain fuel add new with fuel cleaner sprayed threw top of carbs with carb clean

Submitted: 2 months ago.Category: Motorcycle
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Customer reply replied 2 months ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call.
Customer reply replied 2 months ago
Let me know if you need more information, or send me the service offer(s) so we can proceed.
Answered in 22 hours by:
5/27/2018
Motorcycle Mechanic: TIMOTO, Motorcycle Mechanic replied 2 months ago
TIMOTO
TIMOTO, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 1,492
Experience: Honda registered technician, silver level award, former Kawasaki/Suzuki tech, 40+ years exp.
Verified

The most likley cause of the problem is fuel varnish clogging the low speed fuel circuits in the carbs. There is nothing that you can add to the fuel system that will remove the varnish. The carbs must be disassembled, cleaned in a professional grade of carburetor cleaner, rinsed, blow dried, all fuel passages checked for restriction, all jets probed for restrictions. The slow speed jets are the smallest orifice in the fuel system and the first to clog. Because they are so difficult to thoroughly clean I recommend just replacing them.

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