Help

[russellhartzell]

First I will give the bike info:

1982 GS650G 57,000 miles

Ok I was successful in removing the carb intake boots and only had to use the dremel on one screw. I took a flashlight and look in the holes at what assume is the valves (upside down icecream cone) and they were covered in a black crust like oil had crusted on. What should I do about that? Is there an easy fix or do I have to pull the top end? THanks for the help.

[Steve]

Is the bike giving you other reasons to pull the head?

Just seeing dirty deposits on the backsides of the valves is no great cause for concern, unless you know that it was running better than that, and this is a new symptom.

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[hampshirehog]

Nothing to worry about - just a build up of carbon after 57k miles. Just clean it off as best you can and put it back together.

[russellhartzell]

Should I spray something in there?

[hampshirehog]

Just use an old rag, maybe damp with petrol, and give things a good rub. No need to get the thing polished.

[russellhartzell]

No I have no other reason to pull head and would prefer not to if no necessary but I do plan on checking the Valve Clearances.

[DanTheMan]

Intake valves (the ones you're looking at) look like that when things are working right. If they've got gobs of carbon on them, all crusty, then there's cause for worry. Likewise, if they're light brown or white, there's some cause for worry as things are running too hot and lean then. I'd leave them alone, do your valve adjustments, they'll be fine.

[russellhartzell]

Thank you. I will leave them alone. I just want to do everything I need to while I have everything else off.