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Runs really hot

The exhuast runs really hot along the side and is melting the side panel. everything seems to check out. can't figure this one out. also it dosen't want to go in reverse up any incline but is just fine on flat surfaces. lookin for some help.

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There should have been some aluminum reflective insulation at the hot spots. If it is gone you will have to replace them to shield the plastic panel(s).

Posted on Sep 11, 2009


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Posted on Jan 02, 2017


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Hey Bruce,
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The figure 7 represents the heat range of the plug. Usually it is unwise to deviate from specifications unless problems force choosing a different heat range. If the spark plug regularly fouls then a hotter spark plug could improve the problem - with NGK that would mean moving from 5 to 4.

Any move must be made with care to avoid the engine damage possible if the spark plug is too hot.

Hot and cold plugs, incidentally, indicate the amount of heat the spark plug dissipates from the centre to the body and doesn't affect the temperature of the engine. Broadly cool running engines need hot spark plugs and hot running engines need cold plugs so in each case the spark plug nose will achieve the self-cleaning temperature without becoming too heated.

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My side by side is running at half throttle and the muffler gets blood red hot like its flooding

I'm not familiar with your vehicle, but if it was a road car I would guess at:
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There's either an air/fuel mixture problem finding its way into your muffler (and is burning inside it) or red-hot exhaust gases (because of a head problem) finding their way direct into the pipe.

I would doubt that there's too much fuel as such - an over supply of fuel tends to 'choke' and make an engine sluggish. A weak mixture - ie, too much air for the amount of fuel - causes overheating.

If you can, check for air leaks - air being drawn into the fuel system. This can cause overheating, though I can't say I've ever come across a muffler glowing red hot because of it.

Then again .. if it's running at half power, that does suggest an over -rich fuel/air mixture

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