Keihin fcr mx flat slide carb swap

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Old Nov 5, 2014 | 10:05 PM
  #21  
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Originally Posted by Richard Avatar
What brand is that shift light on the bike in your website video? Can I add that to my KLX?
Richard for sure on the klx it is a great tool you can get them from
speed hut easy hook up hot 12v wire ground wire and one wire to the coil
here is the one on the klx
Bill.

http://www.speedhut.com/ecommerce/pr...ift-Technology)

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Last edited by 113moro; Nov 5, 2014 at 11:44 PM.
Old Nov 5, 2014 | 10:14 PM
  #22  
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Here is a update on the fcr mx 37 project
found everything I needed on Ebay
it is on it's way
fcrmx 37 carb $110.00
merge racing adjustable leak jet $77.00
Track side pump return spring $5.00
noss adapter $60.00
Scary fast power now $50.00
total cost for the project so far $302.00
This project will be great fun.
 
Old Nov 5, 2014 | 11:51 PM
  #23  
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Originally Posted by 113moro
Richard for sure on the klx it is a great tool you can get them from
speed hut easy hook up hot 12v wire ground wire and one wire to the coil
here is the one on the klx
Bill.
Which side of the coil would it hook up to ? Interesting but a bit expensive
 
Old Nov 6, 2014 | 12:22 PM
  #24  
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Originally Posted by Richard Avatar
Which side of the coil would it hook up to ? Interesting but a bit expensive
it goes on the black and white wire
 
Old Nov 6, 2014 | 04:33 PM
  #25  
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getting started
while waiting on parts I will do a little poking around may be do a valve check
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Old Nov 6, 2014 | 05:58 PM
  #26  
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Time to do the cam mod then

 
Old Nov 6, 2014 | 09:18 PM
  #27  
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Originally Posted by Richard Avatar
Time to do the cam mod then

I think this is all I'am going to do for right now
the Bike is rock solid and is a great ride
This is my wifes bike and she does not
like for me to get too crazy with her stuff.
 

Last edited by 113moro; Nov 6, 2014 at 09:41 PM.
Old Nov 6, 2014 | 09:44 PM
  #28  
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The cam mod is free if you haven't read up on it. Adds a few HP after easily advancing the intake cam and retarding the exhaust cam by moving the cam sprockets around.
 
Old Nov 7, 2014 | 12:09 AM
  #29  
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Actually I was commenting about the flat slide w/o the accelerator pump. Seems if the round slide would work well on older Hondas, Yamahas, etc w/o the accelerator pump it brings up the question of how the new flat slides would work. The are often available for around $50 or so. My current and previous SR500s had the round slide since the flat slides weren't predominant yet.

Just curious.
 
Old Nov 7, 2014 | 03:18 AM
  #30  
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Originally Posted by klx678
Actually I was commenting about the flat slide w/o the accelerator pump. Seems if the round slide would work well on older Hondas, Yamahas, etc w/o the accelerator pump it brings up the question of how the new flat slides would work. The are often available for around $50 or so. My current and previous SR500s had the round slide since the flat slides weren't predominant yet.

Just curious.
My bike revs up very well ahead of the AP kick in point; it doesn't seem to be dependent on the AP. So a flat slide carb w/o AP would probably do fine.

It may depend a lot on the gearing that's on a bike/how it's ridden? A high geared sumo SF might need the AP boost more than a tight geared bike that's used off road most of the time.


I'm thinking I may look around for a longer AP kick in adjust screw. The one that comes with these Mikuni pumper carbs doesn't let you adjust the kick in very far away from idle. Mine's running fine as it is, but I'd like more adjustability.

Unless I can just put something under the end of the original screw to have it start lifting the white actuator above the plunger earlier.
 



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