On 22/7/2020 at 5:32 AM, Kyle Communications said:
So how frustrated have you been with the crap throttle and cable system on the savannah?....yeah everyone hates it. Always having to rebalance the carbs and the throttle never tracking correctly with either throttle rod. Well never fear a solution is at hand 🙂
A guy in NZ came up with a new throttle coupling bar system for his savannah. He posted some pics on FB and Danny Leach and I have been looking at it. Danny came up with some further improvement ideas for how to easily mount it all and literally just make it plug and play
Pics are placed here and I will upload a quick video to youtube to show the operation of it. We fitted it last sunday and ran the engine and balanced the carbs with a Carbmate. A huge difference now. No slop or uneven carb operation also the carb balance is rock solid. The centred LED of the Carbmate literally does not move now from idle to full power.
We were only going to make them up for our small group but there seems to be a big interest in them and so far it looks like we will be making at least 10 sets and thats mostly for Savs but they will work on any rotax engine independent of type of aircraft so we may end up making kits for them. No idea yet on cost but probably not that much. Biggest cost is getting the laser cutting done and some smaller parts that will need to be done on a CNC lathe and the bearing blocks can be made on my CNC mill at home. I was going to get all this done anyway as I have 2 engines to be done and Danny has another engine as well as the one he has just done and a couple of other guys in our group so making enough for 6 or 7 It costs not a lot more really to make a batch or 20 or 30 up. Its just laser time and CNC lathe time. The material which is all stainless 3mm plate and some 1/2 inch stainless tube is relatively cheap..the ball links are not that much each and the stainless threaded rod isnt expensive
As a side note you may see a funny looking CDI in the pictures. Thats #2 CDI that was built and tested and still running even though its a 3D printed case for the past 3 years on Danny's Sav...
New throttle system for Rotax
in Savannah
Posted