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 Post subject: Re: FCR-MX Install....
PostPosted: Tue Jan 26, 2016 12:42 pm 
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Adventure Rider
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Joined: Tue Aug 09, 2011 1:49 pm
Posts: 848
Location: Queenstown, New Zealand
nmerrill wrote:
So, I've had my FCR installed a while, and more recently, it's been giving me issues with not returning to full closed throttle.
Took it apart and everything looked fine. Replaced the throttle cables (Motion pro - almost seem like they won't adjust quite right - legnth not quite right?) and the problem is the same.
So a little research indicates that some lighter springs are available, and other mods have been done for the weak thumbed quad riders!
Hmmm. My FCR came from ebay...

Ordered a stock spring from Jets- R - Us and took out the old one to compare....
Image

New stock spring on left = thicker wire, shorter

I'm guessing that may be the issue!
Now, if some kind soul can tell me how those washers are supposed to go.... :dunno: :s_mad :s_mad


Delta 224,
your problem might be the return spring, i know my carb is off a quad bike, and my throttle wont shut at idle most of the time by itself, i have to physically roll the throttle to the stop for idle sometimes.

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 Post subject: Re: FCR-MX Install....
PostPosted: Sat Feb 06, 2016 6:47 pm 
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Joined: Tue Oct 29, 2013 8:27 pm
Posts: 1340
Location: FM-19
Just finished reading this thread.

5, F I V E days.

Lotta info here... :good:


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 Post subject: Re: FCR-MX Install....
PostPosted: Sun Feb 07, 2016 12:27 pm 
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Posts: 9979
Location: Mackinaw City, MI, USA
N3YMY wrote:
Just finished reading this thread.

5, F I V E days.

Lotta info here... :good:


:s_yes

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 Post subject: Re: FCR-MX Install....
PostPosted: Sun Feb 07, 2016 1:15 pm 
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Joined: Tue Nov 30, 2010 7:22 pm
Posts: 1053
Location: Flagstaff AZ
Maybe a post it for: parts/where to get and problems/fixes. ?

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 Post subject: Re: FCR-MX Install....
PostPosted: Fri Feb 12, 2016 4:10 am 
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Joined: Thu Jan 05, 2012 2:05 pm
Posts: 16
Location: Simi Valley, California
I'm hoping someone can clarify something for me.
I just installed a fcr on my bike and it seems the exhaust is getting quite a bit hotter now shortly after startup. The carb was a craigslist find.
Since I still have the stock pipe, I went with a 150 main, 40 pilot and fuel screw 2 1/2. I also opened the airbox. It seems to run fine and doesn't pop on deceleration or when revving.
I was wondering if the hot pipe could be from a rich condition as well as a lean condition? I can probably start it without the choke if that makes any difference....
Thanks


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 Post subject: Re: FCR-MX Install....
PostPosted: Sat May 06, 2017 12:37 am 
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Joined: Sun Mar 12, 2017 7:45 pm
Posts: 10
Location: New Richmond, OH.
Could someone please tell what size starter jet I should be using?


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 Post subject: Re: FCR-MX Install....
PostPosted: Sat May 06, 2017 5:45 am 
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Joined: Mon Apr 24, 2017 8:34 am
Posts: 8
Location: Sydney, Australia
mxrob wrote:
Without question the best carb for the DR650. IMHO of course. :mrgreen:

https://docs.google.com/present/edit?id ... pjbQ&hl=en

Just wondering if anyone has installed one of the "smart carbs" on their DR?

There are two main models out there: Smart Carb and Lectron. The guys on Thumpertalk did a comparo of the two, but I'd love to hear any user feedback specifically on the DR650. It seems like the SC carb is much better based on the reviews...

From everything I've read about the "smart carbs" they are far superior to even the FCR pumper carb, but they are pricey so would be nice to know they work well on the DR.

Lectron vs Smart carb
https://www.thumpertalk.com/forums/topi ... ns/?page=2


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 Post subject: Re: FCR-MX Install....
PostPosted: Sat May 06, 2017 6:47 am 
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Joined: Fri Sep 10, 2010 10:22 am
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Location: Mackinaw City, MI, USA
BigRed96 wrote:
Could someone please tell what size starter jet I should be using?

75

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 Post subject: Re: FCR-MX Install....
PostPosted: Sat May 06, 2017 6:51 am 
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Joined: Fri Sep 10, 2010 10:22 am
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Location: Mackinaw City, MI, USA
JamesK wrote:
mxrob wrote:
Without question the best carb for the DR650. IMHO of course. :mrgreen:

https://docs.google.com/present/edit?id ... pjbQ&hl=en

Just wondering if anyone has installed one of the "smart carbs" on their DR?

There are two main models out there: Smart Carb and Lectron. The guys on Thumpertalk did a comparo of the two, but I'd love to hear any user feedback specifically on the DR650. It seems like the SC carb is much better based on the reviews...

From everything I've read about the "smart carbs" they are far superior to even the FCR pumper carb, but they are pricey so would be nice to know they work well on the DR.

Lectron vs Smart carb
https://www.thumpertalk.com/forums/topi ... ns/?page=2

Lots of HYPE with the Smart Carb... Minimal action. :pardon:

topic9251.html

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 Post subject: Re: FCR-MX Install....
PostPosted: Sat May 06, 2017 1:56 pm 
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Joined: Sun Mar 12, 2017 7:45 pm
Posts: 10
Location: New Richmond, OH.
mxrob wrote:
BigRed96 wrote:
Could someone please tell what size starter jet I should be using?

75

Thank You Sir!


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