Bf 750 engine problems - Kawasaki ATV Forum
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post #1 of 7 Old 09-11-2013, 08:15 PM Thread Starter
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Bf 750 engine problems

I'm a 15 year old boy and I worked my ass off all summer to finally big myself a used 2008 brute force 750i FI. Bike was doing really good and I put about 400 km on it. One day I was ridding and parked it for a bit when I got back on it I was at a stretch so hit the gas and it wouldn't go over 85 and the speed was going down so I stopped and was looking it over and I figured it was the belt ( I had never really taken a look at it so I figured it was worn out ) so I decided to keep going an take my time but it just got worst and worst till about 2 km later the over heat light game on so I killed the engine then the FI light came on, the fan ran 30 seconds then it stopped and cold coolant shot out the back from an overflow hose and I thought that was really weird since there was still some in the bottle, I let the fan run till it stopped ( 15 minutes ) then since I was in a corner in a popular trail I decided to start it and get it out of the way, it had no power at all and it died on me, I starte it back up and the engine was doing a really weird knocking ( 3 quick knocks every two seconds approximately coming from the middle of the forward cylinder while giving it a little gas cause it would not run while idling) I towed it home and I just can't figure out what's wrong with it, anyone ever had this happen or anyone knows what I nee to fix?
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post #2 of 7 Old 09-11-2013, 08:22 PM
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If I had to guess, you spun a front rod bearing. Be prepared to rebuild the motor. Do a search for spun bearing and you'll see what I mean.
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post #3 of 7 Old 09-11-2013, 08:24 PM Thread Starter
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Will I have to rebuilt the whole thing?
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post #4 of 7 Old 09-11-2013, 08:39 PM
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Originally Posted by rockingkawi View Post
Will I have to rebuilt the whole thing?
more and likely cause they have to tear the whole motor down to put them in i was charged around 1000 to put rod bearings in my brute
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post #5 of 7 Old 09-11-2013, 08:40 PM Thread Starter
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I guess ill have to get the engine out and tear it down to be sure :/
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post #6 of 7 Old 09-12-2013, 09:17 PM
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did it have oil in it?
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post #7 of 7 Old 09-13-2013, 05:08 AM Thread Starter
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Yea it had plenty, I always check my oil before every ride
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