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Engine Losing Power And Shutting Down When Hot.

idle ignition coil switch

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#1 justicerempa


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Posted 05 February 2020 - 01:47 AM

Hello Everyone,


I have a XJR1200 1997. I know that it's 1300 territory but we share the same issues for early years sadly. English not being my forte, please bear with me while I try to explain what I believe to be an electrical problem.


So, I recently had to change the OEM ignition switch on my motorcycle.

The new one had 4 cables instead of 6 on the OG one. Lots of problems started to appear but the most striking one is the following: if the bike is cold, it works like a charm. When it gets hot, I get misfire and a loss of power, it last 2 - 5 minutes and finally turn off by itself, not responding to revs or anything. If I let it rest for 2 - 3 minutes, it starts again and I can drive it a bit till it repeat the same pattern: progressive loss of power, impossible to idle and shut off.


So I did the following. I took of the ignition off the circuit and made direct connections. At this point the bike has 3 direct bridges on the 6 cables. Same issue.


I checked all sparks and fuses, I checked if the tank was "breathing", all fine. The thing that is pretty weird is the heat factor. If cold = Fine. If hot = Progressive loss and shut off. But can restart and ride a bit after 2 or 3 minutes.


Anyone had this issue?


Thank you in advance!

#2 Boot


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Posted 06 February 2020 - 03:55 PM

Not had the issue but it could be coils breaking down when the heat gets up.

Oh shit!

#3 justicerempa


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Posted Yesterday, 06:26 PM

Thank you, I will look into it!

Also tagged with one or more of these keywords: idle, ignition, coil, switch

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