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Old 12-19-2012, 08:09 AM   #4
Umarth OP
Gnarly Adventurer
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Joined: May 2011
Location: Tramping arround the world for a bit with Big O
Oddometer: 372
ah crap!

Originally Posted by gunnerbuck View Post
The plug looks like the proper light brown color...

The carbon deposit on the piston top looks pretty light to me though a bit tarry ... How do the deposits look in the valve passageways? Do the valves still sit above the seats or are they more flush with the surface {a bit recessed}?

The leading edge of your decomp pin does look pretty worn... I compared it to one I have sitting here that was so worn that it no longer engaged the cam: Yours looks like it is about 25% better than my completely shot unit... Was it still working? Did it make the klick to set itself when you rolled the engine over? If you plan to do a long trip with the bike then it would be worthwhile to replace the whole cam/decomp unit...
Here's a pic of the head before getting it cleaned:

As for the pin, yup it was still doing it's job. But I'm leaving on very long trip in spring (100k+) so if it shows sign of needing to be replaced then I'll replace it. I only asked the question in the event that the pins always look that way and dont deteriorate past that point: no sense in replace parts just for the fun of it. I wonder if I could spin the pin arround? I could then carry it as a spare. Maybe...
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