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Glow plug

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Old 07-24-2010, 02:55 PM
  #1  
kitfox man
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Default Glow plug



Can i use two stroke glow plugs in my 91 four stroke?

Thanks Brian

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Old 07-24-2010, 03:00 PM
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fishinchickens
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Default RE: Glow plug

What type of .91. O.S? I use A8 hot glow plugs in my O.S 91 surpress.
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Old 07-24-2010, 03:27 PM
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Default RE: Glow plug

I have a magnum 91 rfs.
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Old 07-24-2010, 03:32 PM
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Default RE: Glow plug

I havent run any magmum four strokes before. The best way to find out is to try. I wont hurt anything.
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Old 07-24-2010, 04:21 PM
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Default RE: Glow plug

It runs great with them but the head gets a little hotter then with 4 stroke plugs . You could keep your hand on top of the head after a flight with 4 strock plugs but wit two stroke it get hot to the touch if you keep your hand on it .
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Old 07-24-2010, 04:39 PM
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Default RE: Glow plug

The four stroke plug is a hot one anyway but the element material is different to keep it hot through the four stroke cycle. The two stroke plug will work in a pinch, I have used them when out in the field and they were OK.
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Old 07-24-2010, 04:55 PM
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Default RE: Glow plug

'In a pinch' is about right. But switch over to an OS #F as soon as you can.
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Old 07-24-2010, 07:44 PM
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Default RE: Glow plug

I prefer the Fox Miracle Plug for 4-strokes.
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Old 07-24-2010, 07:56 PM
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Default RE: Glow plug

I'm testing the Thunderbolt plug sold through Hobby People right now. I have always run the OS-F but they must be using gold for an element these days. I have also tested the H-9 plug over several years. They all work very well, what I'm looking for is how long they last before replacement is required. The H-9 plug is pretty good and I have just started using the Thunderbolt. The OS-F is a great plug but at twice the price of other four stroke plugs????
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Old 07-25-2010, 05:34 AM
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Default RE: Glow plug

I have also found that the Fox Miracle plug works very well in all my 4 strokes ( I have Magnum, OS, Enya and ??) and use the Miracle plug in all of them as well as my 2 strokes.
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Old 07-25-2010, 06:56 AM
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ORIGINAL: Gray Beard

I'm testing the Thunderbolt plug sold through Hobby People right now. I have always run the OS-F but they must be using gold for an element these days. I have also tested the H-9 plug over several years. They all work very well, what I'm looking for is how long they last before replacement is required. The H-9 plug is pretty good and I have just started using the Thunderbolt. The OS-F is a great plug but at twice the price of other four stroke plugs????
No, I think they still use platinum! We all have our preferences but I like to stick with a winner and I won't tolerate a balky engine. I think the last #F I had go bad was around the time of Queen Elizabeth's coronation : )
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