To set the low RPM you need to use the trimming, you have another stopper screw but this one normally is factory adjust so you can close complete the barrel , but if you have some smoke in the transition or the engine dies you need to adjust low valve.
Thanks for your reply Albertomi :) but i have tuned the low valve too and no difference..I have a big drop of rpm when I remove the glow igniter?! And my glow plug is an Os F..the tank is a bit high but impossible to set it lower..(1 or 2 cm above the carbu) .. My transition is very good. Just idle is bad..but with the glow igniter it functions perfect
Maybe you can up your engine, I mean instead of install your engine in the normal side of the mounting arms, you could mount the engine in the rear of mounting arms and you gain 3/8 up, we did that in a HK decathlon it works¡*¡*
48 thumbs up!
I bought two of these engines , both started straight away and run perfect even down to a low idle using 10pcnt nitro - plenty of power using a 12 x 6 propeller and economical on fuel. smooth transition from idle to full throttle. i am very happy with the motors for the price.
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27 thumbs up!
This engine is out standing. It started on the first try, no problems. It was pre set from the factory so I didn't need to do a lot of adjusting to it. It's worth the money believe me.
Great engine - very happy. Make sure you prime it until it is literally soaking in fuel and then it starts easier than any other engine I have come across. With a 500cc fuel tank I get around 15 minutes of mostly full throttle running a little on the rich side with a 11x7 prop.