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Spark Plugs
http://mudmotortalk.com/mmt_v2/viewtopic.php?f=3&t=42109
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Author:  FallenDucks [ Mon Jun 24, 2013 7:37 pm ]
Post subject:  Spark Plugs

I know there lawnmower engines, but what plugs is everyone running?

Author:  cb5331 [ Mon Jun 24, 2013 7:38 pm ]
Post subject:  Re: Spark Plugs

autolite app3923's

Author:  Team Camo [ Mon Jun 24, 2013 7:53 pm ]
Post subject:  Re: Spark Plugs

Champion, unless the parts house is sold out, then the Autolites

Author:  JIMMY W [ Tue Jun 25, 2013 1:57 am ]
Post subject:  Re: Spark Plugs

autolite 3923

Author:  Will [ Tue Jun 25, 2013 3:57 am ]
Post subject:  Re: Spark Plugs

Champion, they seems to give back the better reading to me also (rich, lean) Tried NGK but they "looked" lean no matter what.

Author:  Prodigy [ Tue Jun 25, 2013 4:04 am ]
Post subject:  Re: Spark Plugs

Champion rc12yc

Author:  FallenDucks [ Tue Jun 25, 2013 12:21 pm ]
Post subject:  Re: Spark Plugs

What number for NGK's are they platinum or iridium?

Author:  schmitt [ Tue Jun 25, 2013 1:21 pm ]
Post subject:  Re: Spark Plugs


Author:  SCSuperfly [ Tue Jun 25, 2013 8:30 pm ]
Post subject:  Re: Spark Plugs

I'm running NGK's but can't say they're better for any reason. That's just what the store had for my motor.

Author:  boatguy [ Sat May 01, 2021 4:26 pm ]
Post subject:  Re: Spark Plugs

I'm running the AutoLite AP 3923's but was wondering about playing with the Pulstar plugs... anyone have any intel. on them?

Author:  Will C [ Sat May 01, 2021 9:05 pm ]
Post subject:  Re: Spark Plugs

i did some research on the pulstars and got excited. i have a set here that i have used in a few different engines on dyno. i have yet to be able to see a measurable difference in power,,,, but who knows, your experience may be different

Author:  boatguy [ Sun May 02, 2021 9:22 am ]
Post subject:  Re: Spark Plugs

well if that's the case,,, I'll save my money and stick with the 3923's... Thanks brother

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