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Aug 24th, 2023
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Joined: Oct 2007
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OP
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Based upon the exhaust pipe coloration, I now have the left hand cylinder running much hotter than the right. Has anyone else experienced this? Cause?
Lance
1981 Plus 8
2016 Three Wheeler
2022 Corvette Stingray Convertible z51
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Joined: Feb 2018
Posts: 759 Likes: 23
Talk Morgan Regular
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Talk Morgan Regular
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It would be good to use an infrared gun or temperature probe to verify and quantify the temperature difference before getting too worried.
Steve
Late 2012 M3W
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Talk Morgan Enthusiast
Joined: Jun 2015
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Typical of running too a lean mixture. Remove spark plugs and compare colours. Lean will be showing whitish deposits. If confirmed, could be faulty injectors? BUT, I know nothing really about M3Ws in particular.
Doug
2011 Plus 4 in Rich Maroon
1972 750 “ComDom” sprinter
1958 Triton 650
1992 Triumph Trophy 900
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I found the the Right Hand Cylinder (the rear cylinder) always runs hotter. Possibly something to do with the motorcycle original configuration of the motor wanting the rear cylinder to run more rich because it is in the heat shadow of the front cylinder?
The light at the end of the tunnel is actually a train. 2019 M3W
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Joined: Jul 2013
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I found the the Right Hand Cylinder (the rear cylinder) always runs hotter. Possibly something to do with the motorcycle original configuration of the motor wanting the rear cylinder to run more rich because it is in the heat shadow of the front cylinder?
Does anyone make a conversion kit to mount the X-Wedge engine sideways on the M3W to compensate for the originally intended configuration? 
Craig - Texas, USA
2021 M3W
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Thats what MMC does, in theory.
The light at the end of the tunnel is actually a train. 2019 M3W
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Joined: Oct 2007
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Looks to be about 100 degrees F hotter. On the left cyl
Lance
1981 Plus 8
2016 Three Wheeler
2022 Corvette Stingray Convertible z51
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Joined: Feb 2019
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Looks to be about 100 degrees F hotter. On the left cyl How and where did you measure it? ProTune readings?
The light at the end of the tunnel is actually a train. 2019 M3W
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Joined: Oct 2007
Posts: 423 Likes: 2
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Measured at the exhaust pipe before the muffler. Noticed that one pipe was getting very discolored after a short ride the other was staying shiny.
Lance
1981 Plus 8
2016 Three Wheeler
2022 Corvette Stingray Convertible z51
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Joined: Feb 2019
Posts: 3,854 Likes: 2
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Mine did that too. My rear cylinder (left side facing motor) has always run cooler.
The light at the end of the tunnel is actually a train. 2019 M3W
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