Gas engine backfire

[Truckracer]

Sounds like you know the Syssa story from beginning to present. Its a typical story that has repeated itself too many times in out hobby ...... a dedicated individual with an excellent product but trying to do too many things without enough help. Its very difficult to design, produce and market a product while still trying to do customer service, correspondence, etc. pretty much all by yourself. There aren't enough hours in the day .....

 

[Red Raider]

I believe you're exactly right. It's too bad. The engine is made in the USA, good product, strong running, high quality. Could easily compete with any engine on the market. But, probably won't ever happen. Todd had a 60 twin in the works. Haven't heard anything about that for a long time.

 

[Red Raider]

OK guys - I pulled the thrust washer off and the woodruff key was in place and undamaged. So if a change in timing didn't cause it and the hall sensor didn't move, what else could it have been?
Also, I made 3 flights after it backfired so hard.

 

[BarracudaHockey]

Were you wearing a skirt while you were flipping?

 

[bigblueswope]

What he is trying to say is, did you flip it with authority?

 

[jaybird]

I have had s hall sensor go bad and cause the same thing. Got popped by a 29" Falcon!

 

[yakken]

If you flood the engine that will happen also

 

[Red Raider]

Were you wearing a skirt while you were flipping?

What he is trying to say is, did you flip it with authority?

Yeah, I know .

I don't think I was. I usually give it a pretty decent flip. I'm starting to think that I caused it by not running the engine dry after the last flight. I turned on the choke and may have loaded up the carb. I'll check the hall sensor.

 

[Jlc]

Yeah, I know .

I don't think I was. I usually give it a pretty decent flip. I'm starting to think that I caused it by not running the engine dry after the last flight. I turned on the choke and may have loaded up the carb. I'll check the hall sensor.

I've never run a gas engine dry on purpose. I don't think that is the issue.

 

[Red Raider]

I really don't think so either. I'm kind of grasping at straws since the woodruff key wasn't the issue. Has to be something electronic; either the hall sensor or the ignition itself. We'll figure it out.