Water Pump Issues KX65. Help Please
Posted September 08, 2009 - 10:16 AM
Posted September 09, 2009 - 11:06 AM
You HAVE to remove the case cover and water pump cover and impeller to remove the seals - orient them properly when putting the new ones in.
Common problem on teh KX65 - done ours twice in less that 2 seasons racing but then he does put well over 140-180 hours on the bike in a season.
Posted September 10, 2009 - 06:21 PM
On your diagram the parts are
Good luck, let us know how you go... on a side note check the case hasnt got a hair line crack.
Posted December 01, 2009 - 05:20 AM
Posted December 02, 2009 - 06:10 AM
So here is the $100 question - the KX65 always has had oil in it. However, the lower gearbox starting making a high-pitched whining sound at the track last week (sounds like there is gravel in the gearbox!). In addition, the bike has now become hard to start.
I don't think my water in the oil issue caused any harm but I do recognize there is definitely a problem in the motor.
Do you guys think that the bottom end is bad and since it is now hard to start the top-end was somehow affected as well? I am not a wrench /motorhead and have never torn apart a two-stroke motor so anyone's help is greatly appreciated.
Posted December 03, 2009 - 05:13 AM
I'd venture to guess that it's a coincidence.
However, your bike does have some serious issues, time to get out the wrenches.
Posted December 03, 2009 - 06:27 AM
The noises/symptoms you're describing are NOT natural and definitely point to a problem.
Like smac said - if your tranny fluid is disappearing you've likely got a bad crank seal - however, if you've got full tranny fluid and those sounds, it may be that something internal let go and is being eaten by your moving parts right now.....not good.
As you tear it down, you will soon see where the problem is, plus, you can inspect your water pump seals....if the shaft is scored in rings - you've probably got a leak and should replace EVERYTHING (shaft, 2 seals and the bearing) or it won't last more than a month.
Posted December 04, 2009 - 04:44 AM
Posted December 09, 2009 - 08:02 PM
Posted December 10, 2009 - 02:35 PM
I put the gaskets on dry?.
Posted December 11, 2009 - 08:31 AM
I like your spelling of locktite but even with that spelling, no matter how tempting it may be, keep your hands off it.
Torquing it properly (working your way up to final torque in 1/3rd increment stages on all fasteners in a star fashion) is all that is required. torquing fasteners covered with locktite, anti seize or grease is never recommended since it can drastically affect the actual torque value you will end up with and result in snapped fasteners and all sorts of other trouble, fasteners should always be as clean as possible when being torqued.
Also - please note that the torque values I supplied you vary between ft/lbs and in/lbs, there are 12 in/lbs in one ft/lbs so make sure you're not overtightening!