Reply To: Champion blue ribbon dissasembly.

[David Stanton]

As you may already know, the Champion 1J has a couple cool features. There are no reeds. The back of the crankshaft is shaped to open and block off the carb at the appropriate times as it rotates. The water pump impeller is cast aluminum and will last forever unless run in salt. There is no telltale water outlet to know if the pump is working, but once started, rev it briefly once, if it was started at very slow speed, to get the water flowing, after that initial rev (happens automatically if started with throttle on “start” or above) at idle the impeller is assisted by syphon action of the water going down the outlet tube. Note you can’t see the water discharge because it is discharged through the exhaust port above the prop. If you take the lower unit off, be sure the water tubes going up and down next to the driveshaft don’t get bent so the driveshaft rubs holes in them. If this happens, they are easily replaced with copper tubes with flares on top.

I can get mine idling so slow that I can stop the motor by slapping the palm of my hand down on the rope sheave (don’t try this on other motors that don’t have a smooth , polished sheave!), and then I can start it again at the same speed with only 1/2 turn of rope.
Dave