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Your Own Design / Re: Thompson Engine From Scratch
« Last post by Jasonb on Today at 04:32:56 PM »Thanks for all the appreciative comments, even from those who like the shade of green. It's growing on me a bit but having always pictured this one being painted with Kawasaki green in my mind while designing and building the VHT Kermit Green was a bit of a let down
There is always this option if I still don't like it.
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But onward to the important bit before anyone thinks I may not have fully finished the engine before moving on to the Heinrici. Unlike a few engines this one seemed to run better after stripping and painting and starts first time after a pull of the cord which I can get 5-6 winds around the starter pully. It's still running quite hot particularly when I lean it out which also ups the revs and makes the throttle a bit more responsive. Richening the mixture a bit slows it down to a more pleasing (to me) speed but then the throttle has little effect.
I did not play with the timing on the video as it is hard to do up the adjuster one handed and did not want to risk things coming loose as during initial testing that did happen and the brass ignition contact went through the open gears and was spat out the other side in several pieces
The exposed gears and crank make it a bit noisy but it does make for a more interesting engine when running rather than having everything hidden away inside a crankcase and the dirty oil seems to wipe off Ok

But onward to the important bit before anyone thinks I may not have fully finished the engine before moving on to the Heinrici. Unlike a few engines this one seemed to run better after stripping and painting and starts first time after a pull of the cord which I can get 5-6 winds around the starter pully. It's still running quite hot particularly when I lean it out which also ups the revs and makes the throttle a bit more responsive. Richening the mixture a bit slows it down to a more pleasing (to me) speed but then the throttle has little effect.
I did not play with the timing on the video as it is hard to do up the adjuster one handed and did not want to risk things coming loose as during initial testing that did happen and the brass ignition contact went through the open gears and was spat out the other side in several pieces

The exposed gears and crank make it a bit noisy but it does make for a more interesting engine when running rather than having everything hidden away inside a crankcase and the dirty oil seems to wipe off Ok
