Going back in... Cylinders and pistons time
#12
Join Date: Jan 2015
Location: Sandy Eggo's North County
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#13
Love Sherman's pretty good pastrami although Manhatten of the Desert has a better latke
Anyone take a look at the pic where the black coating has come off the rear cylinder around the spark plug? Wondering what caused that.
#14
Join Date: Jan 2015
Location: Sandy Eggo's North County
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Powder coatings are "finished" by heat application. They are also removed via heat application. I think that's what you've got going on here. Outside temp, + engine temp, + spark plug temp, and you have that result. A perfect storm, so to say. Even the front cyl doesn't have it as it sees more air than the rear. You might try 1 step colder plugs.
Oh yes, a "lean" tune can be a contributing factor too. Got an oil temp gauge? If so, what do you see when idling down the 118?
(Hey, is Billy Read's still there across from the Aerial tramway?)
#16
Knowing where you are, it would be easy to say "blowing sand" but, it's not in a leading edge situation.
Powder coatings are "finished" by heat application. They are also removed via heat application. I think that's what you've got going on here. Outside temp, + engine temp, + spark plug temp, and you have that result. A perfect storm, so to say. Even the front cyl doesn't have it as it sees more air than the rear. You might try 1 step colder plugs.
Oh yes, a "lean" tune can be a contributing factor too. Got an oil temp gauge? If so, what do you see when idling down the 118?
(Hey, is Billy Read's still there across from the Aerial tramway?)
Powder coatings are "finished" by heat application. They are also removed via heat application. I think that's what you've got going on here. Outside temp, + engine temp, + spark plug temp, and you have that result. A perfect storm, so to say. Even the front cyl doesn't have it as it sees more air than the rear. You might try 1 step colder plugs.
Oh yes, a "lean" tune can be a contributing factor too. Got an oil temp gauge? If so, what do you see when idling down the 118?
(Hey, is Billy Read's still there across from the Aerial tramway?)
No oil temp gauge yet but will be getting one. Yo your point though, head temps can get pretty gnarly when I ride! So long as it's not a concern.
Ha! I happen to be known as "Good karma Schwartz" to those around me
#17
#19
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robbyville (06-19-2017)
#20