KX Riders

Maintenance & Technical => KX500 Original => Topic started by: KX500freak on September 30, 2007, 08:03:17 AM

Title: 85 till 87 KX500 questions
Post by: KX500freak on September 30, 2007, 08:03:17 AM

hey guys

i have one in mind for a small price like 350 euro,s or so
but i don,t know anything about the 85kx500

i have the models 91/94 and the older ones are totaly different.
my question is:
is there anyone with an 85/86 who can tell me the week spots,

such as gearbox or head/valve/crank or mountingissues or stuff thats wearing out fast /cracking or else?

the one i want has a good nice piston not worn out
gearbox is working fine,
only an electric issue ,since there is no spark

but that is no problemo at it,s self ,
since i know how too fix that

i really hope someone from the older riders could give me some feedback on this 85ers
or anyone with a 85KX500 at least

w.k.r
menno


o i did use search but nothing relevant came up..

Title: Re: 85 till 87 KX500 questions
Post by: don46 on October 01, 2007, 03:52:59 AM

The 85 motor is a somewhat different animal, it is the first year for water cooling, and kind of a lone duck. 86 on had powervalves, cylinders are interchangeable from 86-88 then from 89 on. The clutch was a weak issue, they had a coarser spline and only 5 springs. I use the newer bottom ends and have some motors with the 86-88 cylinder and head, the problem with this combo, you can't buy the power valve parts, they have been obsoleted, there may be other parts as well.

The motor made alot of horsepower for the chassis.

Title: Re: 85 till 87 KX500 questions
Post by: openclass on October 01, 2007, 04:29:31 AM

Is that a kickstand that came factory on that model?

Title: Re: 85 till 87 KX500 questions
Post by: KX500freak on October 01, 2007, 06:31:51 AM

thanks for the reply don46,
i see that 85 is different then the 86 engine its a lone duck yeah haha
no valves involved and nothing to replace with except an 85 cyl and piston

and litlle weekness in the frame and clutch,

i m buying a moneypit is my guess so i think i let it be then

Title: Re: 85 till 87 KX500 questions
Post by: Desert Panther on October 10, 2007, 08:23:10 AM

Quote from: openclass on October 01, 2007, 04:29:31 AM

Is that a kickstand that came factory on that model?

yeah whats the story on that kickstand? I desperately need one for my 87, but every stand i've seen says its for the 88 and up models.   HELP !!!!!!

Title: Re: 85 till 87 KX500 questions
Post by: The Flyin Hawaiian on October 10, 2007, 10:58:25 AM

My 86 KX 250 had a factory kickstand. I think 86 was the last year for the kickstand.

Title: Re: 85 till 87 KX500 questions
Post by: chrisorbics on October 10, 2007, 01:10:29 PM

Hi, my 1986 kx500 has a kick stand. I am actually going to get rid of this bike.

Title: Re: 85 till 87 KX500 questions
Post by: Desert Panther on October 10, 2007, 05:07:23 PM

Quote from: chrisorbics on October 10, 2007, 01:10:29 PM

Hi, my 1986 kx500 has a kick stand. I am actually going to get rid of this bike.

well then, LOL, wanna sell your kickstand? :-D