K100 burping in mufler - K-Bikes.com - Excellence in Motion
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post #1 of 1 (permalink) Old Jul 14th, 2019, 11:45 am Thread Starter
Join Date: Jul 2019
Posts: 1
K100 burping in mufler

My 1987 K100RT is continuously burping (rumbling ) in the muffler, indicating that unburned gas is getting in there. It is not loud when doing 65 mph on the HWY, with one exception: going full blast / full throttle at >110 mph, then closing the throttle usually results in a loud explosion. In general good acceleration and power. Cracked or dirty exhaust valve? Valve timing? ignition issue?
eboskamp55 is offline  
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