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-   -   ign. problem (http://www.vansairforce.com/community/showthread.php?t=175543)

edward7048 09-26-2019 11:00 AM

ign. problem
 
lately when I start the engine during warm up I have a slight miss but
after the engine gets above 120 deg. oil temp. and I start increasing power
for mag. check at around 3300 rpm the engine runs very rough on both
mags. I have to go to very high rpm to make the engine run some
what less rough but have to go take power to make it to run ok. Has any
won had this problem?

edward7048 09-26-2019 11:10 AM

ign problem
 
I for got to say that I had installed new plugs and it did not help.

Piper J3 09-26-2019 11:24 AM

How many hours on engine? I just rebuilt both carbs - see... http://www.vansairforce.com/communit...d.php?t=173080

NinerBikes 09-26-2019 11:35 AM

How soon do you turn off the choke, during warmup? 30 seconds, a minute, or? If it hasn't been done, I'd say rebuild the carbs, too. Do you run a lot of Mogas with ethanol in it, or 100LL?

edward7048 09-26-2019 08:49 PM

ign problem
 
The engine has about 200 hours on it, the carbs were rebuilt by lockwood
two years ago. I burn 93 oct with eth. I release the chock as soon as the
engine comes out of retarded spark


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