Rough running and low RPM
in 2 Stroke Technical Questions
8 years ago
Posting for a friend with a gyroplane
I've been having some issues with my 532 with 2 bing 54s. It has flow fine for a few years, and through about 100 crow hops I have made through out the past few months, but now it seems to not want to give me my 6250 static RPMs. I got the RPMs up to 6200-6300 this past wednesday, but when I tried it today, it would only give my about 6000 for a minute or so, then drop to around 5700. If I pulled the throttle back and then back to full, it would drop to about 4700.
Since my EGTs were only showing around 925 ish I dropped the needle down one notch and the brought the heat up a little, but the rPMs were still lacking. I then changed the needle jets from 174 to 172 and the rpms dropped even more. I brought the needle back up to the "stock" position and still only got 5700-5900.
The throttle response is horrible also. If I push too fast it will just bog and die. I've been reading tons of bing tuning stuff and its all starting to drive me nuts.
Is there something I'm missing? Is there a step by step article about engine/prop tuning on a 532/582?
I've been having some issues with my 532 with 2 bing 54s. It has flow fine for a few years, and through about 100 crow hops I have made through out the past few months, but now it seems to not want to give me my 6250 static RPMs. I got the RPMs up to 6200-6300 this past wednesday, but when I tried it today, it would only give my about 6000 for a minute or so, then drop to around 5700. If I pulled the throttle back and then back to full, it would drop to about 4700.
Since my EGTs were only showing around 925 ish I dropped the needle down one notch and the brought the heat up a little, but the rPMs were still lacking. I then changed the needle jets from 174 to 172 and the rpms dropped even more. I brought the needle back up to the "stock" position and still only got 5700-5900.
The throttle response is horrible also. If I push too fast it will just bog and die. I've been reading tons of bing tuning stuff and its all starting to drive me nuts.
Is there something I'm missing? Is there a step by step article about engine/prop tuning on a 532/582?
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