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Old 03-22-2013, 07:39 AM   #1
Joined: Sep 2007
Location: cabo san lucas, detroit
Oddometer: 4
Thumbs down 93 xr 600 miss fire carb or coil

My ever faithful 600 xr has developed a miss fire from half throttle to full eventually reviing to wide open my buddys 99 xr seems to eat coils about every 10 hours it starts to miss fire and we tow him home i have cleaned the jets and went from a 152 main jet to a 162 did i mention we upgraded the exhaust pipe. Sound good runs no better any one else eating coils ? The stator seems to be ok still starts 1 st or 2 kicks
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Old 03-22-2013, 07:49 AM   #2
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Joined: Jul 2007
Location: San Francisco,Ca.
Oddometer: 12,386
First thing I would do for both bikes is clean the wiring harness ground points.
Steve in SF

58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
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