yamahamark
Member
Hi guys, I just bought a really clean almost complete 97 xtc 600 twin. The guy I bought it from said he rebuilt it 3x's in a month top to bottom new everything. He originally wanted $1200 but it didn't sell so he decided to part it out and only sold a few things off it before I bought the sled for $200.
My question is what might be the cause of 3 melt down's in a row? It's all stock except for the silencer mod.
I'll try to get some pics up tomorrow or something.
Thanks for any help
My question is what might be the cause of 3 melt down's in a row? It's all stock except for the silencer mod.
I'll try to get some pics up tomorrow or something.
Thanks for any help
super1c
Super Moderator
Who knows. What went down each time? Same cylinder? Didn't take engine down all the way and blew out crank? More info
Throttle Junkie35
New member
I will guess the mag side cylinder kept going down?? Show me the piston.
shaggyzr2
Active member
crank seals
yamahamark
Member
yamahamark
Member
Vincent
New member
That was a score! Lots of usable parts!
shaggyzr2
Active member
Maybe he forgot to bleed the oil pump. I have a really nice low mileage bottom end if you're looking for one.
Throttle Junkie35
New member
What does the sides of the piston look like?? I never 100% believe any seller that says they replaced the crank seals. Its worth pulling the motor and throwing in some new ones for piece of mind. My guess would be bad crank seals, dirty carb, wrong main jets, bad gas, or some other air leak.
Judging from the piston wash, it looks like it might be rich or atleast acceptable in most operating rpms yet obviously shows signs of a lean condition. I would see what main jets are in it and check the needle position in the carb.
Also, verfy that the head gasket is a stock, full thickness gasket. THIS IS IMPORTANT on a 600 twin.
Maybe check to see if it has the correct CDI box on it. From what I understand, running a 500 CDI on a 600 makes for a very unhappy motor.
-PS, was the previous owner running the air box?
Judging from the piston wash, it looks like it might be rich or atleast acceptable in most operating rpms yet obviously shows signs of a lean condition. I would see what main jets are in it and check the needle position in the carb.
Also, verfy that the head gasket is a stock, full thickness gasket. THIS IS IMPORTANT on a 600 twin.
Maybe check to see if it has the correct CDI box on it. From what I understand, running a 500 CDI on a 600 makes for a very unhappy motor.
-PS, was the previous owner running the air box?
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yamahamark
Member
It was a great steal I figured for that price it would save me a ton of money when something breaks on my sx.
I don't know what the sides of the pistons look like I'm waiting till I get moved and the garage setup before I pull it apart. I don't know if he was running the airbox. But it did come with the airbox.
Things I know are missing are what he sold. Carbs, head gasket, complete chain case, cdi box, track, rear shocks, and 1 trailing arm.
When I get moved and start tearing into it I'll post more pics of what I find.
Thanks for the responses it gives me a starting point when I start.
I don't know what the sides of the pistons look like I'm waiting till I get moved and the garage setup before I pull it apart. I don't know if he was running the airbox. But it did come with the airbox.
Things I know are missing are what he sold. Carbs, head gasket, complete chain case, cdi box, track, rear shocks, and 1 trailing arm.
When I get moved and start tearing into it I'll post more pics of what I find.
Thanks for the responses it gives me a starting point when I start.
yamahamark
Member
Quick question
Looking at the numbers on The pistons I found it is a wesico .50 over pistons. Does anybody know if spi makes a .50 over piston? I have searched and can't find anything from spi for .50 over just wesico.
Thanks for any inf guys.
Looking at the numbers on The pistons I found it is a wesico .50 over pistons. Does anybody know if spi makes a .50 over piston? I have searched and can't find anything from spi for .50 over just wesico.
Thanks for any inf guys.