RE: POULAN 42 cc CONVERSION HELP
I looked for my picture of the Poulan 42cc that I had converted but I can't find it now.</p>
Anyway, yes, just cut off the rear shaft, but be careful not to over heat the shaft and ruin the seal. I often grind through the surface hardness and then hacksaw off my shafts.</p>
The angled carb adapter is fine.</p>
I run a bit smaller props than most as I don't fly 3D and like to have an airplane fly around at half throttle with a reserve of speed left. So I used an 18 x 8 and mine turned it at 83-8400 rpms. A more "normal" prop would probably be around a 20 x 8.</p>
Watch those Zama carbs with Gas/Glow. I had two of them swell their diaphragms up and stop working after being exposed to the Gas/Glow fuel mix. Never had that problem with the Walbro carbs. If you have been using them with good luck, that's fine, but if the engine starts acting up, look at the carb diaphragms first.</p>
The engine is a bit heavy, but runs well and it's an easy conversion.</p>
AV8TOR</p>