Cooling system stop leak, factory installed?
I have been having an ongoing mysterious coolant leak/mild heating (not overheating) issue. I can't seem to find an obvious leak, but it looses coolant (slowly, but none-the-less). When I serviced it today I took some extra time and did a little investigating. I found two things.
1. The vent from the overflow tank to the ground was pinched closed/folded over in the retainer down by the clutch cover, I believe this occured when the dealer had the cover off to replace the basket.
2. When I removed the radiator cap, there was a bunch of this aluminum flake/sticky stuff stuck under the pressure side sealing ring. I believe this causes the cap to not seal propery against pressure and that allows the engine to heat up and pass coolant at a low pressure. I cleaned it up and replaced the cap. When I rode it home it seemed to take longer to heat up (good thing), so maybe I found the issue.
My question is; did Suzuki put stop leak in the cooling system from the factory? I assume they do (as most modern manufacturer's do these days), but do they use the flakes? If so, how can I get most of it out so it doesn't keep fouling the radiator cap? If the dealer did it when they replaced the clutch basket (must remove water pump too), do I raise this to their attention? I already have taken it to them for this, but they can never seem to find anything wrong.