Plugs/Detonation

Mavagrand

Just installed xIEDs and an oil temp gauge. Oil temp is running around 240 while the outside temp is around 70..dont know it that is good or bad. anyway, my question, I have heard heat is not so much the culprit as something called "detonation" that I should be able to hear.Well I have heard my bike "pop" occasionally but nothing that ever concerned me. anyway, I pulled my plugs today and checked them..the rear one was dry and slightly white, but pretty smooth. the front one had a little moisture (gas, oil???) on it and was white as well although the front had a thicker coating of the white then the rear did. Anything on the plugs indicate detonation.??
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2008 Electra Glide Classic
Stock

glider

Transfer of metal from the internal engine parts on the plugs would indicate detonation, also a sound from the engine that may sound like marbles in the cylinders.
Detonation is the premature burning of the fuel-air mixture in your combustion chamber. Usually it’s caused when the spark from the spark plug creates an incomplete “flame” from the fuel-air mixture during the combustion cycle.

The white is pretty much normal for the lean mixtures.

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Mavagrand

Glider,as usual, thanx for your reply. by the way, in addition to the oil temp gauge I installed last week..I also installed a set of xIEDs on my bike. trying to get her to run a little cooler. the Xieds definately make her run smoother and more power throughout. dont seem to cool the engine any though. gonna check the oil temp in the summer and possible install a Jagg 10 row......

REED

Ever heard your car ping or rattle when lugged (mostly with standards) or when you haver the bike in 4th or 5th and loaded double and you roll on the throttle a little heavy or when you cruise around a corner slow in 2nd and give too much throttle you get that heavy rattling sound coming from the engine you want to avoid these situations at all costs. Oil temp at 240 is no problem but you don't want it going much higher, if your ambient temp is too high in the summer or you spend excessive periods idling or sitting in heavy traffic when the temps are high an oil cooler will definitely give you peace of mind. Many police bikes are fitted with fan kits to help in such situations as parade duty or escorts. tom

NEWHD74FAN

Probably a good idea, as summer heat in the 90's would probably proportionately raise the temp by 20...winter is probably a good time to install the Jagg anyway...

smitty901

The temo drop from Xied's id so small you have to check for it with a therm gun.
The oil temp will not drop from Xied there will be those that will try to tell you they will drop temps 50 -100 or I have heard even more, There is no way adding a little fuel can drop it that much.
The drop is about 20 degrees engine temp NOt oil temp.
The will help a stock bike run a little stronger.
Jagg 10 not a bad idea not really needed but if it helps to sleep go for it
Please read every line of the Jagg FAQ section before you buy

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