KX Riders

Maintenance & Technical => KX500 Original => Topic started by: vaaprider on June 18, 2009, 11:30:55 AM

Title: How does this top end look
Post by: vaaprider on June 18, 2009, 11:30:55 AM

This is how it looked when I took it off. I just bought the bike 1993 model.  It looks very good to me but this is my first two stroke so I would greatly appreciate some feedback.  Also the piston has some numbers stamped on the top I can make out A7-9 then it looks like there is another letter, is this the original piston.

Title: Re: How does this top end look
Post by: hughes on June 19, 2009, 03:03:19 AM

The head looks pretty good but the piston has a ton of carbon build up on it. My 2-strokes pistons look like new on top when I remove them. Remove the cylinder and we can get a better look at the rest of the piston and cylinder walls and that will help you determind overall condition.

Title: Re: How does this top end look
Post by: SeaSpyder on June 19, 2009, 05:31:41 AM

I'm curious do you know what brand of oil and the mix ratio the previous owner was running? You might also want to post up the carb jet numbers. 

Title: Re: How does this top end look
Post by: Motorrad on June 19, 2009, 07:20:12 AM

If the top of the piston looks like that. The kips need attention

Title: Re: How does this top end look
Post by: vaaprider on June 19, 2009, 09:12:22 AM

Thanks for the feedback I will tear it down  and post the pics tonight.

Title: Re: How does this top end look
Post by: vaaprider on July 06, 2009, 04:52:25 PM

Main Jet 170
Slow 60
Air 1 3/4

I live at about 800-1000 feet but I only rode it for a few minutes. Most of that carbon came from Kentucky (Where I bought it) I do not know the elevation. I will install a 168 58. He was running 30:1.  The KIPS had massive carbon buildup, took effort to remove!