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Head gasket ooze?
Hi! Thanks to all who participate in this site, it is a BIG help.
I am the original owner of a 85 gs700, with about 24K miles. It has had no problems other than the stator/RR at about 10K. Two months ago after riding about 15 miles it would not idle, had to use the choke to keep it running. It ran fine at highway speed but would try to cut off at every stop. By the time I got it home it sounded like it was only running on two cylinders. Since then, with the help of searching this forum, I have checked valve adjustment(some were a little tight), replaced the carb boot o-rings (flat and hard but no cracks), checked and cleaned the carbs (three times, found nothing), checked the coils, pickups and igniter (passed all tests, the igniter had a couple cracked solder joints but I may have done that getting it apart--the board is glued to the case), and verified compression with a push-in type tester (I know, worthless, but my good one would not fit). After all of that it ran better but I still could not set the idle. Set it at 1100 ride it, idle goes up to 2200, set it back to 1100, ride it, next stop it dies. So I pull the carbs again and find nothing. Time for a proper compression check (I know, should have done that first), 1)90, 2)60, 3)130, 4)130. (cold, carbs on the bench) Ouch! So I pulled the head looking for a nice burn through between one and two...nothing. Pulled the cylinders looking for a sticking or broken ring...nothing. For the past few years I have noticed a slight brown ooze coming from the head gasket. It's not oil, feels like gasket shellac. I have noticed it more since this problem started, especially around #1. Is this how this type (three layer steel) of gasket fails? I can see through the layers edge on except where it is crimped at the bolt holes now that it is off. Do you think it is the gasket, should I pull the valves, or have I missed something obvious? Thanks!
I am the original owner of a 85 gs700, with about 24K miles. It has had no problems other than the stator/RR at about 10K. Two months ago after riding about 15 miles it would not idle, had to use the choke to keep it running. It ran fine at highway speed but would try to cut off at every stop. By the time I got it home it sounded like it was only running on two cylinders. Since then, with the help of searching this forum, I have checked valve adjustment(some were a little tight), replaced the carb boot o-rings (flat and hard but no cracks), checked and cleaned the carbs (three times, found nothing), checked the coils, pickups and igniter (passed all tests, the igniter had a couple cracked solder joints but I may have done that getting it apart--the board is glued to the case), and verified compression with a push-in type tester (I know, worthless, but my good one would not fit). After all of that it ran better but I still could not set the idle. Set it at 1100 ride it, idle goes up to 2200, set it back to 1100, ride it, next stop it dies. So I pull the carbs again and find nothing. Time for a proper compression check (I know, should have done that first), 1)90, 2)60, 3)130, 4)130. (cold, carbs on the bench) Ouch! So I pulled the head looking for a nice burn through between one and two...nothing. Pulled the cylinders looking for a sticking or broken ring...nothing. For the past few years I have noticed a slight brown ooze coming from the head gasket. It's not oil, feels like gasket shellac. I have noticed it more since this problem started, especially around #1. Is this how this type (three layer steel) of gasket fails? I can see through the layers edge on except where it is crimped at the bolt holes now that it is off. Do you think it is the gasket, should I pull the valves, or have I missed something obvious? Thanks!
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