Re: liquid cooled ht
peugeot 103 doppler 50cc 40mm h2o head - no decomp
I'm getting one of these. Cutting a piece of 1/8th inch aluminum to fit inside, recessed so there is no interference with the cylinder seal and AlumaWeld it in, reduce the size of the water passage and add an outlet. Prob use an electric pump based on a 6 volt fan motor
I thought you could do the same, even if modding the MM head you have now. It could be easily jacketed. For even flow remove some of the fins behind any inlet/outlet so water can get to all surfaces. Now, you could split the coolant or run from the bottom to the head to the rad then pump etc.
You want to make sure you don't move the water through too fast, It won't properly cool if you do. And they do run better with some heat in them as you know. There are what are called Tic Toc Timers for cars that switch the fan and electric water pump on back and forth so they don't run at the same time. This is hooked into an electric thermostat that turns on the system at the right temp.
...and you thought this was going to be easy