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Jeff Policky
Jeff Policky, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 2441
Experience:  Yamaha Gold, Suzuki Gold, Honda Bronze, Polaris Bronze, BRP
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2012 Brute Force 750 has limited/no power after 1/4 trottle,

Resolved Question:

2012 Brute Force 750 has limited/no power after 1/4 trottle, bike only has 25 Hours, 200 Miles
Submitted: 2 years ago.
Category: Motorcycle
Expert:  Jeff Policky replied 2 years ago.

what is the battery voltage with the

 

  1. key off
  2. key on
  3. key on engine cranking for 10 seconds

let me know what the results are

Customer: replied 2 years ago.
12.80 switch off 12.70 switch on, 11.37 to crank over, 14.70 running
Expert:  Jeff Policky replied 2 years ago.

thank you

that is very good. is it like it has a rev limit (jerking pop) on it or just no power to get up and move?

Customer: replied 2 years ago.
It runs good to a certain speed then starts backfiring and popping. It was running 50 mph then it's gradually been reduced so it won't go over 20 mph, maybe 1/4 trottle. You can increase speed over long distance but it's like it's straved for fuel, makes a sucking through systems air intake. Low end in garage and around back going 5 mph it's like nothing is wrong till you hit the gas.
Expert:  Jeff Policky replied 2 years ago.
check the fuel pressure output with a fuel pressure tester gauge. as a fuel pump that is not put out the proper pressure will have issue when trying to give the unit more throttle. do you have access to fuel pressure gauge?
Customer: replied 2 years ago.
No dice, but if I do get one what readings should I be looking how/where do you hook it up at? If it is, it's more than likely going to be a shop that tears into, I'm nowhere qualified at the wanting to do it myself lol
Expert:  Jeff Policky replied 2 years ago.

i understand about know your limits.

the fuel pump pressure should be 43 PSI

it will take a pressure gauge and the proper adapter to hook it in line with the fuel pump.

Jeff Policky, Motorcycle Mechanic
Category: Motorcycle
Satisfied Customers: 2441
Experience: Yamaha Gold, Suzuki Gold, Honda Bronze, Polaris Bronze, BRP
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