Maintenance & Technical > KX500 Original

first k5 very well used. need some advice

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Foxx4Beaver:

--- Quote from: younGun on October 01, 2014, 02:02:33 PM ---what gearing do you guys usually run?

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14-48's been working great for me...I'm in mostly sand and dark loam.

jcm3:

--- Quote from: Foxx4Beaver on September 26, 2014, 10:02:07 PM ---if you can get a decent discount rate at your local Kawie dealer, you can replace everything in the motor, minus the engine cases, for about $6000...then you'll have the reliability, providing you're good with the general maintenance...this was the path I chose because I plan on keeping mine for many a year to come.

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I kind of went the same route since I want to keep mine for some time.  I sent my engine off to Tom Morgan for a full rebuild, but had to since I grenaded the piston and it took out the bottom end and really screwed up the cylinder also.  I needed the full Monty.

I had him do his cylinder, head and power valve mods also, but without those, it would have been about $2600.  But, that was including cases, which added about $500 to the bill.  That was for the top end, cylinder welding and replating, bottom end, gears that needed replacing and the clutch.

I'd definitely replace that top end at the least, as if it is old and crusty, you may end up needing a full rebuild whether you want/need it or not.   :-)

Foxx4Beaver:

--- Quote from: younGun on September 30, 2014, 04:45:54 PM ---anybody else have their factory tank crack where the shrouds bolt to it? mine was cracked when i got it. cant afford a tank yet is there any way to patch it?(JB Weld doesnt work gas everywhere, silicone has lasted one ride but is peeling already)

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look and ask around your local area for anyone that does plastic welding, and places that make/build fuel tanks...other than that, there are a few used ones on e-bay.

the liquid J.B. Weld 2 part epoxy would be better than the putty style...if you were to go that route....but remember, it's still a "Band-Aid"

younGun:
yeah I'm pretty confident that it needs a rebuild. i rode it again tonight and the clickety clack is getting worse. its getting harder to start WILL NOT idle and sounds like a 4T until half throttle or so then it goes weeeeeeeeeeeeeeeeee and the wheel comes off the ground  :-D. pretty frustrated tho i just recently picked this bike up for $1100. its not even titled yet. my dad is pretty dead set on shipping the whole bike off for a rebuild though. I'm just sitting here thinking I've been thru a diesel tech trade school and ranked 1st place in Utah in a mechanics competition and 29th in the US. this cannot be that hard. wish i woulda had a manual and parts two weeks ago.......

sandblaster:

--- Quote from: younGun on October 01, 2014, 02:02:33 PM ---what gearing do you guys usually run?
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15-42 rolling on 17s

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