Maintenance & Technical > KX500 Original
Siezed?
3Razors:
You'd be suprised how much abuse a lower end can take. I wouldn't split the cases just yet. If it were me I get some gas and fill it up and tip the bike on its side to flush out the particles followed with some compressed air, keep repeating the process again and again till clean. Then put a small amount of 2 stroke oil on the main/rod bearings and rotate to see if everything is smooth. Grab the flywheel and try up/down movement, there shouldn't be any. If everything is in check, throw a new topend on there and ride. I know the local mechanic and others will tell you otherwise as he has to err on the safe side and puts more $$ in their pocket. I know this because we do the same at shop I work for. But I will also tell them the option above, we have had dozens of motors that have run with no issues season after season with just the flush and clean method.
Motorrad:
--- Quote from: 3Razors on January 23, 2011, 04:35:26 PM ---You'd be suprised how much abuse a lower end can take. I wouldn't split the cases just yet. If it were me I get some gas and fill it up and tip the bike on its side to flush out the particles followed with some compressed air, keep repeating the process again and again till clean. Then put a small amount of 2 stroke oil on the main/rod bearings and rotate to see if everything is smooth. Grab the flywheel and try up/down movement, there shouldn't be any. If everything is in check, throw a new topend on there and ride. I know the local mechanic and others will tell you otherwise as he has to err on the safe side and puts more $$ in their pocket. I know this because we do the same at shop I work for. But I will also tell them the option above, we have had dozens of motors that have run with no issues season after season with just the flush and clean method.
--- End quote ---
Would you like to see a picture of the main bearings I just took out of my motor? It had particles flow through it for exactly 30 Yards... as I coasted into camp. everything felt fine when rotating the motor by hand... But the leverage you have on everything, you will never feel a bad main untill its VERY BAD... so I tore it down, took out mains and guess what..they were crunchy... and yes the races had damage..
And as stated before... the pictures look like MAJOR DIRT INGESTION.. If as much dirt as it looks like whent through her... all bearings, crank pin's, piston, plate, etc are in order... Just my .02
"I was able to put it in first gear and let off the clutch and the bike would just sit there like it was in neutral."
This tells me you also have issues elseware... start checking clutch plates/hub..
sandblaster:
I agree with you Motorrad.
I have seen that exact same scenario too many times in the past as well as the consequences of trying to save a few bucks.
I wouldn't risk it based on what I saw.
Then again, what do I know....
Motorrad:
--- Quote from: sandblaster on January 23, 2011, 06:36:29 PM ---Then again, what do I know....
--- End quote ---
about as much as I do..
I like beer, women, and Green motorcycles.
sandblaster:
Don't limit yourself, I like 4 things..... :wink:
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