08 brute force 750 fuel problems

j reitz · 03-26-2009

I just completely rebuilt a 2008 750 brute force FI. It ran fine when i pulled it in the shop,just smoked like a train. r&r motor ,new pistons rings rod bearings. fired motor up. it only runs on the front cyl. just pops through the back. ckd timing ,valves ,all were good. swapped injectors,no difference. then i unplugged the pressure sensor and it idles fine on both cylinders. So i changed the pressure sensor. still runs on front cyl only. When i leave the sensor plugged in and remove the vaccum line from the throttle body it runs fine......... dont know! any help would be much appreciated.

Roofgunner · 04-01-2009

I have on 05, so I can't help much. I would ask what purpose has the vaccum line? Normally if you move a vaccum line air is allowed into the intake port.
so many parts are interrelated on these machines you have to trace cause and effect.

bruteforcerider · 04-10-2009

As the proud owner of an 08 750 I must ask why the rebuild?

andrewlc77 · 08-08-2009

ever figure this out? i have the exact same problem

03-26-2009	#1 (permalink)
j reitz Newbie Join Date: Mar 2009 Posts: 1	08 brute force 750 fuel problems I just completely rebuilt a 2008 750 brute force FI. It ran fine when i pulled it in the shop,just smoked like a train. r&r motor ,new pistons rings rod bearings. fired motor up. it only runs on the front cyl. just pops through the back. ckd timing ,valves ,all were good. swapped injectors,no difference. then i unplugged the pressure sensor and it idles fine on both cylinders. So i changed the pressure sensor. still runs on front cyl only. When i leave the sensor plugged in and remove the vaccum line from the throttle body it runs fine......... dont know! any help would be much appreciated.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
750 Brute Force Fan-Overheating Problem	Crazy Diamond	Kawasaki ATV and Mule	4	07-28-2009 04:50 PM
fuel problems!!!	kylejac	The Mechanics Corner	10	10-13-2008 09:01 AM
Warn Winch Failure on Brute Force 750	Roofgunner	Kawasaki ATV and Mule	4	05-02-2007 12:35 AM
KZ 750 not getting enough fuel	poorstudent	The Mechanics Corner	4	06-18-2006 06:23 PM
Fuel Problems, Again	Kawa mojave	The Mechanics Corner	6	04-10-2004 06:18 PM

04-01-2009	#2 (permalink)
Roofgunner Uncle Bob's Love Child BTK Intermediate Join Date: Mar 2007 Location: Harris, MO. Posts: 270	I have on 05, so I can't help much. I would ask what purpose has the vaccum line? Normally if you move a vaccum line air is allowed into the intake port. so many parts are interrelated on these machines you have to trace cause and effect.

04-10-2009	#3 (permalink)
bruteforcerider bruteforce rider Join Date: Mar 2008 Location: ohio Posts: 38	As the proud owner of an 08 750 I must ask why the rebuild?

08-08-2009	#4 (permalink)
andrewlc77 Newbie Join Date: Jun 2009 Posts: 3	ever figure this out? i have the exact same problem

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)