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Garden Tractors Discussion Forum

Billy Shafer....

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Ray Hofstetter

05-24-2014 13:06:17

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What sparkplugs do you recommend for the Onan B48M twin 18hp? I'm rebuilding the carb and might as well do it all....I've gotten different opinions but value yours.

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Billy Shafer

05-25-2014 20:35:33

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 Re: Billy Shafer.... in reply to Ray Hofstetter, 05-24-2014 13:06:17  
I would stay away from Champion. I prefer NGK or Autolite. Champion has a high failure rate. From what I have seen

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Billy Shafer

05-25-2014 20:52:35

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 Re: Billy Shafer.... in reply to Billy Shafer, 05-25-2014 20:35:33  
Had to grab my files.

NGK 3112
Bosch 7919
Autolite 4316. If I read my notes correctly.

I had four out of eight Champions fail in one week. Stopped using them.

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Ray Hofstetter

05-25-2014 21:43:49

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 Re: Billy Shafer.... in reply to Billy Shafer, 05-25-2014 20:52:35  
Thank you sir, rebuilt the carb today and while the intake manifold is off, might as well adjust the valves. I got Autoliite plugs, they looked at me like i was nuts at the auto parts store when i told them no Champions. I've seen the video of how they're made - no thanks.

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