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Re: spark plugs

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Jason S.

06-09-2013 15:49:27

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RD16 is a resistor plug and a cool plug. They probably recommended a cooler plug because your engine is a high altitude engine and it probably has higher compression than the standard Z134 engine.

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06-09-2013 16:16:15

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 Re: spark plugs in reply to Jason S., 06-09-2013 15:49:27  
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Like i said it will run only 8 hours on that plug and then i have to clean it. It runs good on the Champion D-23 , is it a hotter plug ? That's what was in it when i bought it years ago. It is a higher compression engine than the Continental Z-134.

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Jason S.

06-09-2013 17:19:52

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 Re: spark plugs in reply to 4on-the-floor, 06-09-2013 16:16:15  
Yes the D23 is the hottest plug in that series of plug and it's non resistor which is also recommended. D18Y is what Champion recommends for most of the Z engines and it is hotter than the RD16 also it is a projected tip plug. You could also try the D21 Champion which is cooler than the D23 but still hotter than the RD16 or D18Y. It kind of depends on what you use the tractor for. If it is just used occasionally for light work then it probably would need a D21 or D23 to keep them from fouling out. But in general don't run a hotter plug than you have to.

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