I have a friend with a 2006 610. Started easily prior to washing with a powerwasher. Now nothing. Another friend removed the plug because there was water in the well. He doesn't knoiw if water went into the cylinder or not. One way or the other - no starty. I'd like to start with simple troubleshooting - gas, spark, compression. A quick look showed a weak (yellow) spark at the plug. Replacement of the plug yielded the same result. I was hoping for blue but at least there's a spark. Where do I test the coil output and what should I measure? We drained the gas out of the tank and float bowl so I don't think that's an issue. Like to do a compression test. I know the readings are funky due to the auto compression release. Still there must be a "must see at least xxxx psi with throttle wide open" number. He doesn't have a manual and I've been unable to find a number for him. Anybody have that number handy? My worst fear is that water went into the cylinder when they removed the plug and subsequent cranking bent a valve stem. Lil help?
I woudln't worry to much aobut a bent valve from water in the cylinder. If you hydroloc an engine you may do all kinds of damage like blown head gasket, strecthed cylinder studs, boken piston or even a bent crank but bending a valve is the least likely senario.
