KX Riders

Maintenance & Technical => KX250 / KX125 => Topic started by: stuart1981 on January 04, 2008, 08:41:04 AM

Title: kx250 1999 fuel mixture
Post by: stuart1981 on January 04, 2008, 08:41:04 AM

hi just bought my 1st kx 250 today, as i have only ridden trials before, can anyone tell me the best mix for the fuel in ml's of oil per litre of fuel an the best sort of oil to use! thanks

Title: Re: kx250 1999 fuel mixture
Post by: Hillclimb#42 on January 04, 2008, 08:53:20 AM

The manual (you need one)says 32:1. I use 44:1. The richer the mixture the better protection you have. The leaner the bike runs better. It kinda depends on riding style also. I would say that whatever ratio you decide to run stick with it. I run Klotz Super Techniplate. There is a wide variety of opinions about this topic. My opinion is that synthetic oils are more expensive for a reason. They work better. Don't mix oils either. If you aren't sure what's in it or you are changing brands or whatever, run the old gas out or drain it. NGK B8ES Plugs. Check out the jetting chart, oil mixture, perfomance mods and all that on search option too. 

Title: Re: kx250 1999 fuel mixture
Post by: stuart1981 on January 04, 2008, 08:59:06 AM

thanks for that, dont know that much about the bike really apart from its just had a full engine an gearbox rebuild an suspension servive, i guess the best place to find a manual will be ebay!

Title: Re: kx250 1999 fuel mixture
Post by: Hillclimb#42 on January 04, 2008, 09:08:30 AM

I quit dealing with Ebay. You have to take risks to get what you want. Any Kawasaki dealer will probably have the Clymer manual. Mail Order is easy also from aftermarket parts dealers. Motosport Outlet is a good one. There's a bunch of  mailorder places and they all carry them.
 Sweet deal man. I remember getting my '96 250. The whole first year I thought that I should have bought a 125. That thing will pull a gear forever. Its awesome when you know your bike can do things you're not willing to try. What kind of aftermarket goodies came on it?

Title: Re: kx250 1999 fuel mixture
Post by: stuart1981 on January 04, 2008, 09:19:30 AM

PRO TAPER BARS

BOYSEN CLUTCH

BOYSEN CLUTCH COVER

BOYSEN FLYWHEEL COVER

PRO CIRCUIT AXLE BLOCKS

PRO CIRCUIT TITANIUM FOOT PEGS

ACERBIS LARGE FUEL TANK

plus got given a set of brand new TAG metals triple trees that came  with it but not fitted, well what you said about ebay, i bought the bike from there plus its road registered with lights an hand gaurds so was exactly what i was looking for mainly gonna be used for green laning plus maybe use it to go to work on every now an again cost ?1000 so seemed a good deal really!

Title: Re: kx250 1999 fuel mixture
Post by: country73 on January 28, 2008, 12:45:33 PM

I have a 2001 kx500 I run 50:1 using belray H1r.  I like that ration very much.  It seems to work for me.

Title: Re: kx250 1999 fuel mixture
Post by: Kawasakinut on January 28, 2008, 01:24:10 PM

staurt don't believe all the seller tells you. i bought a 2000 kx 250 and the seller said he put a fresh top end  in it ( weisco piston and rings ) that turned out to be a big fat lie!!! the bike was super clean so i bought it. i say at least tear the cylinder off check its condition as well as piston and rings and crank big bearing before your in fifth gear w.o.t. and the motor abruptly seizes  not good, trust me i know from experience. or you could do a full rebuild  like mine inspecting everything along the way.  off subject but i hope it might be useful to you. 


jimmy v.   

Title: Re: kx250 1999 fuel mixture
Post by: Jeeks on January 29, 2008, 01:10:29 AM

lol....Usually when an ad says "recent top end" or "Fresh top end" or "never raced" is a lie.  Always thoroughly check out the bike.