I just received an A52 moded from RBmods. This thing has beautiful work inside. I Installed it yesterday on a Tamiya truggy (TRF801Xt) with a EFRA 2081 pipe and fire it up for the first time.

It took forever to start the engine. I never had a harder time starting an engine for the first time. The pinch is unreal. I finally started it but I had to heat up the head remove the spark plug put some fuel from the top and spin freely the engine while hot and lubed with the bump start to loosen it up a little. Once I did that for about 30 sec the engine loosened up. Put the dynamite plug in and it fired up. The LS needle was too rich so I leaned it out a little.

I let it run the entire tank (150cc) at idle. This engine did not quit running at low idle for the entire tank. That was 40 minutes at idle on the bump start... Yes that was 40 minutes at idle on one tank. I thought that it would stop running, but it kept on going. Temps never got over 185 F (very rich LS needle). I did not want to get the temps any higher for the first run.

Today I will run one more tank on idle and then lean it out and load the engine lightly by driving it slowly.

I was speechless on how it purred. Keep in mind that I am comparing it to a Werks B6 that I have on my buggy. This will be interesting as so far it has been very promising.

I can’t wait to see what the 2081 and the performance mods have done to this engine.