Steve
GS Whisperer
OK, nothing difinitive yet on the cheery red pipes, but we had some other interesting finds today.
Started by taking the carbs off, getting them ready to dip. Got the first carb into the dip, started working on the second one. Pilot jet is stuck, will have to try the heat and/or PB Blaster to remove, but have to be careful, as there is not much of a groove left for the screwdriver to grip. Set aside carb #2, proceed to #3.
Oops.
Not sure what might have happened here. Looks like a miniature nuclear meltdown in the area of the idle mixture screw. There is no screw visible. The area it should thread into has been cut down, looks like someone tried to use a hacksaw to make a new groove to remove the jet. Also looks like they tried to drill the jet out, but the hole goes down at an angle, and no trace of the jet can be seen. I sprayed carb cleaner in the hole and nothing came out, so I guess there is something in there, but there is NO hope of ever getting it out.
Carb #4 has two stuck jets, the pilot jet in the bottom and the air jet in the intake throat. Will have try more heat and/or PB Blaster.
All the carbs are apart and The Cafe Kid is here, so let's move on to the valve adjustment. Found five valves that would not let my 0.0015" feeler through, and one that was only 0.0015", so it's now time to do the shim inventory to see what I can move around. The Suzuki valve shim tool is cocking sideways far too easily, so we move to the wire tie under the edge of the valve trick. Not too bad until we got to #3 intake. Moving the crank to open the valve, it stopped rather suddenly. Backed it up and tried again, but got the same results. Shining a light through the spark plug hole did not look promising, so we decided to remove the head.
Those are both pieces of #3 exhaust valve. I have seen very few broken valves in my experience as a mechanic, but have never seen one break like this.
If you are really sharp, you may have noticed that the spark plug hole is rather king-sized. That is because the Helicoil came out with the plug.
To make a long story short (oops, too late), we have scraped all the gaskets off the cases, cylinder block and head, wire-brushed the carbon off the tops of the pistons and the combustion chambers, and will now be looking for a replacement valve and a complete gasket set. Might be cheaper in the long run, anyway, as we were going to be pulling many of the covers to polish them, and also needed exhaust gaskets and a valve cover gasket. Now they will all be included in one kit.
.
Started by taking the carbs off, getting them ready to dip. Got the first carb into the dip, started working on the second one. Pilot jet is stuck, will have to try the heat and/or PB Blaster to remove, but have to be careful, as there is not much of a groove left for the screwdriver to grip. Set aside carb #2, proceed to #3.
Oops.
Not sure what might have happened here. Looks like a miniature nuclear meltdown in the area of the idle mixture screw. There is no screw visible. The area it should thread into has been cut down, looks like someone tried to use a hacksaw to make a new groove to remove the jet. Also looks like they tried to drill the jet out, but the hole goes down at an angle, and no trace of the jet can be seen. I sprayed carb cleaner in the hole and nothing came out, so I guess there is something in there, but there is NO hope of ever getting it out.
Carb #4 has two stuck jets, the pilot jet in the bottom and the air jet in the intake throat. Will have try more heat and/or PB Blaster.
All the carbs are apart and The Cafe Kid is here, so let's move on to the valve adjustment. Found five valves that would not let my 0.0015" feeler through, and one that was only 0.0015", so it's now time to do the shim inventory to see what I can move around. The Suzuki valve shim tool is cocking sideways far too easily, so we move to the wire tie under the edge of the valve trick. Not too bad until we got to #3 intake. Moving the crank to open the valve, it stopped rather suddenly. Backed it up and tried again, but got the same results. Shining a light through the spark plug hole did not look promising, so we decided to remove the head.
Those are both pieces of #3 exhaust valve. I have seen very few broken valves in my experience as a mechanic, but have never seen one break like this.
If you are really sharp, you may have noticed that the spark plug hole is rather king-sized. That is because the Helicoil came out with the plug.
To make a long story short (oops, too late), we have scraped all the gaskets off the cases, cylinder block and head, wire-brushed the carbon off the tops of the pistons and the combustion chambers, and will now be looking for a replacement valve and a complete gasket set. Might be cheaper in the long run, anyway, as we were going to be pulling many of the covers to polish them, and also needed exhaust gaskets and a valve cover gasket. Now they will all be included in one kit.
.
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