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Discussion Starter #1
Anyone know if the boyesen water pump kit for the bike will work on the quad. I already have oversized radiator. I have a buitl motor and anything to dissapate some heat is definately usable.
 

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everything thins is the same except the water pump cover. On the db version the outlet hole goes straight up but on the quad it goes sideways.

See Dirtbike-


Quad-
 

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Discussion Starter #3
Guess that explains why the bike I am buying doesn't have it. It has pwr rad etc. I was thinking well why wouldn't they have put the water pump on if they were trying to get max cooling.
 

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I have one on my yfz it was always running hot. I put on waterpump with engine ice also a inner cooler and fan dosen't even kick on. It is a pain in the ass to put on atleast on my yama had to take side of the case off to get the back bolt off the stock pump.
 

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Discussion Starter #7
Yeah yamahas are a pain. Both of my yfzs had the notoriousleak out the weephole. So after changing mine out I know exactly what you mean.
 

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QUOTE (MXrider38 @ Aug 4 2008, 07:39 PM) index.php?act=findpost&pid=10798
Yeah yamahas are a pain. Both of my yfzs had the notoriousleak out the weephole. So after changing mine out I know exactly what you mean.


I would imagine that the kfx would be the same way I use the kfx as a back up. Trying to make it as fast as my yfz but even if I had the same cams and piston all the goodies I don't think it will ever be as fast as my yama. Still a fun ride but the reverse and fuel injection just adds to much weight.
 

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Discussion Starter #9
Well the bike I just bought has a full dasa motor with a 5 axis port job, cams, piston etc. It made 58hp on the dyno . So should be pretty close to a highly modded yfz.
 
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