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Dealing with engine heat on a Honda TRX 300


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the heat rap is a good idea but rapping it around the header wont be good.. wat it does is keeps the heat from escaping so if u rap it around the header it will just stop the heat from escaping in turn prohibit from cooling down which wud cause ur engine problems.. ahh is their one side that is hotter then the other? my guess is that the exhaust is throwing off the most of the heat because its closer to ur legs so u cud use the heat wrap and put it around the part of the exhaust that is close to ur leg, o and put it on the exhaust shield though dont apply it directly on the exhaust pipe.

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There isn't really too much that you can do about the heat coming from the engine. It is air cooled, letting the heat radiate away from the motor is the only thing that keeps the motor from over heating.

An oil cooler is always a good idea for an air-cooled motor, it will increase the life expectancy of your motor and help protect against over heating. I don't know how much it will reduce the heat coming off of the motor, but it could help.

Perma-Cool ATV Oil Coolers - summitracing.com

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the heat rap is a good idea but rapping it around the header wont be good.. wat it does is keeps the heat from escaping so if u rap it around the header it will just stop the heat from escaping in turn prohibit from cooling down which wud cause ur engine problems.. ahh is their one side that is hotter then the other? my guess is that the exhaust is throwing off the most of the heat because its closer to ur legs so u cud use the heat wrap and put it around the part of the exhaust that is close to ur leg, o and put it on the exhaust shield though dont apply it directly on the exhaust pipe.

I'm going to step in here and correct you.

Wrapping any type of exhaust piping is a crucial and important step when controlling exhaust temperatures and reducing radiant heat by up to 50%. Keeping exhaust gases hotter within the exhaust system helps in decreasing density and increasing the flow of exhaust gases. This improves exhaust scavenging which, in turn, reduces intake temperatures for increased horsepower gains. Also, limiting the radiant heat trapped inside the engine bay decreases heat absorption through your legs.

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I'm going to step in here and correct you.

Wrapping any type of exhaust piping is a crucial and important step when controlling exhaust temperatures and reducing radiant heat by up to 50%. Keeping exhaust gases hotter within the exhaust system helps in decreasing density and increasing the flow of exhaust gases. This improves exhaust scavenging which, in turn, reduces intake temperatures for increased horsepower gains. Also, limiting the radiant heat trapped inside the engine bay decreases heat absorption through your legs.

ya what he said lol

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I'm going to step in here and correct you.

Wrapping any type of exhaust piping is a crucial and important step when controlling exhaust temperatures and reducing radiant heat by up to 50%. Keeping exhaust gases hotter within the exhaust system helps in decreasing density and increasing the flow of exhaust gases. This improves exhaust scavenging which, in turn, reduces intake temperatures for increased horsepower gains. Also, limiting the radiant heat trapped inside the engine bay decreases heat absorption through your legs.

Thanks for clearing things up bot def makes a lot more seance to me now

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i didnt experience a lot of heat until i replaced the wimpy exhaust, rejetted the carb, oh and added the k&n .. there is a guy on ebay (or atleast he was when i bought mine) who has oil coolers already setup for the 300ex, its pretty nice, and seems to work pretty well too. all you have to do is remove the oil tube the feeds the head and replace it with the supplied tubing and hoses, it took me longer to figure out were i wanted to place the cooler itself then it did to plumb it in. and i would agree on wrapping the header (as in yes do it) but im not sure if i would bother with it if you are still running the stock setup , but that's just me .

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