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One black spark plug. Mon May 05, 2014 10:01 pm
enzo
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Changed the spark plugs and one was completely black. The others were the normal light grey.
I than pulled the same cylinder plug again after 200 miles and again it is very black. Not oily but very dry and black.
This is a bike I have had for less than two weeks. 1985 K100RS with 29k on a working ODO. I know the miles are an unknown. No smoke at start up ever and bike seems to run fine. Any ideas?
I than pulled the same cylinder plug again after 200 miles and again it is very black. Not oily but very dry and black.
This is a bike I have had for less than two weeks. 1985 K100RS with 29k on a working ODO. I know the miles are an unknown. No smoke at start up ever and bike seems to run fine. Any ideas?
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1985 BMW K100RS Alaska Blue
2012 KTM 500 XC-W