----- Original Message -----
From: "Fly Bum" <fly_it_slow@yahoo.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, July 30, 2003 9:33 AM
Subject: [FlyRotary] auto troubleshooting question

Sounds like you have one or more coils getting hot and breaking down.  It
will cause a back fire because it is easier for it to fire the waste spark
durring the exhaust cycle than under compression.

Bob Darrah

> Trying to help a friend get his recently purchased 2nd
> gen running.  He has a street ported 13b with a weber
> copy side draft carb.  The engine starts and runs fine
> for about 3 minutes and then it starts
> backfiring/popping (a little) and loses power and
> quits.  Let it sit for a while and it will start back
> up and run ok again for another 3 minutes.
>
> I don't think it's the fuel pump cutting out since he
> has it hardwired on and it seems to be putting out
> plenty of flow.
>
> What else to look for?
>
> Thanks guys!
>
> Joa
>
>
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