KLX250 EFI big bore - is there an actual EFI solution?

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  #21  
Old 09-09-2021, 06:49 PM
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Originally Posted by durielk
OK, so.... IMO, one could use the potientometer to dial in exactly the ohms at the exact temp, then order a correct thermistor for you exact bike. Just a suggestion.
I know you want to help and I appreciate that..
I'll be fine with this.



 
  #22  
Old 06-07-2023, 11:06 PM
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Originally Posted by Klxster
Then you missed Jeffs youtube page.. JH Motor Club - https://www.youtube.com/channel/UCBV...yrjkj3iOf6Os0Q

He accomplished exactly what you are asking about. All details are available on his page.. And his "experiments" gave us a bunch of useful info about everything connected to EFI 351's - such as the HP limit of the stock injector ( 27-28 hp, which is about what a "uncorked" 351 will make )..



Also, Jeff is a member - I do not know if he keeps up with the forum postings.. @J Higgens
And Jeff bought a KLX300 after the 351 build so who knows.
 
  #23  
Old 06-16-2023, 10:30 AM
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I got the keng engine 330cc kit on 2018 klx250 with the race cams, bigger injector, lidless, EJK is working good. The only issue so far is some occasional stalling. Still early days after first mechanic made a few mistakes with the install.

It helped the mechanic used a dyno to tune it. It's around 28-29hp

I have a second klx same year model I'm going to possibly put the EJK on after some smaller modifications and may still fit the dyno jet to the 330.

She is an animal offroad now. Still a little lacking in front suspension. Welp, not sure what can do about that
 
  #24  
Old 11-19-2023, 04:35 PM
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Originally Posted by MXM
I got the keng engine 330cc kit on 2018 klx250 with the race cams, bigger injector, lidless, EJK is working good. The only issue so far is some occasional stalling. Still early days after first mechanic made a few mistakes with the install.

It helped the mechanic used a dyno to tune it. It's around 28-29hp

I have a second klx same year model I'm going to possibly put the EJK on after some smaller modifications and may still fit the dyno jet to the 330.

She is an animal offroad now. Still a little lacking in front suspension. Welp, not sure what can do about that
Hi,
front suspension. - I tried.
I took a thicker fork oil - liqui moly 7,5
and I used 5mm spacer for the spring.
Space I took out again.
It´s not expenive to give the oil a try.
And you can use bit more oil 3 or 4 mm - so less air in the fork- my theories should help avoid bottoming.
 
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