KX Riders

Maintenance & Technical => KX250 / KX125 => Topic started by: stevea100m on May 21, 2012, 11:21:56 AM

Title: Changing the carb on 2003 kx250
Post by: stevea100m on May 21, 2012, 11:21:56 AM

I was wondering if anyone has thought about pulling the stock carb off and replacing it with one that doesnt have the tps sensor on it like off of a 98 kx250? Would there be any advantage or disadvantage. The main reason I'm askin is no one offers a lighting coil for the 03-04 kx250 because the carb sensors apparently ask for too much power to have a lighting coil.

Title: Re: Changing the carb on 2003 kx250
Post by: The Flyin Hawaiian on May 21, 2012, 12:58:54 PM

Theres a guy on Thumper Talk thats making Eline replicas for that bike. You can run a 45w equivalent led off of the powerjet coil. They only require 6w. LED taillight is 2w. The PJ coil puts out around 25w. I run them on my 04.

Title: Re: Changing the carb on 2003 kx250
Post by: stevea100m on May 21, 2012, 02:04:42 PM

you wouldnt happen to have a link would you? I have the guys at enduro engineering order all my parts and they were sayin no one makes one so I would be very interested in these

Title: Re: Changing the carb on 2003 kx250
Post by: The Flyin Hawaiian on May 21, 2012, 02:22:29 PM

http://www.thumpertalk.com/topic/941124-making-my-own-external-lighting-stator-for-kx250/

Title: Re: Changing the carb on 2003 kx250
Post by: stevea100m on May 21, 2012, 02:38:38 PM

pretty sweet setup did you notice any issue with how far it stuck out over stock

Title: Re: Changing the carb on 2003 kx250
Post by: The Flyin Hawaiian on May 22, 2012, 04:41:21 PM

My wife has a original Eline on her 03 KX250 and it does stick out a little more. She uses a Moose shifter that she got from Eline that clears the case. Not sure what its from or if it was custom made for Eline for the KX application.

Title: Re: Changing the carb on 2003 kx250
Post by: Spac on May 25, 2012, 09:51:32 PM

The TPS sensor sends a signal to the CDI box, which modifies the ignition advance curve for better ride ability without costing peak power.
It's a good thing to have, but not essential. I'm not totally sure what the ignition curve does with no TPS signal, though - might put it into a very safe ignition map which will slow the bike right down.

No point in swapping to a different carb if you disconnect the TPS - pretty sure they're an airStriker, power-jet PWK which is as good as it gets.