Question about 2002 Honda CRF 450 R

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My 2002 CRF450R gets hot very hot very fast even at start up tried aftermarket coolent ,checked all hoses and cleaned radiator . whats next bike ran very good last ride ,very strong but noticed it was getting hot after about 45 min of ride time

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Check your plug. If it is the wrong gap or wrong style it could be too hot of a plug. for your bike the plug that should be in there is a NGK IFR8H-11 they should cost $12.30. It's expensive but cheaper than an engine rebuild.


Also it could be running lean, check to make sure the fuel filter is not clogged, or that the gas is stale. If the bike has been sitting for longer than three (3) weeks then you need to clean your Carburetors. It is about $100 per carb with most shops in the US, pricy but if you don't know what you are doing you can spend a lot more doing it yourself.


Make sure you keep the oil filter clean and lubed properly, dirt destroys engines fast.


Posted on Jan 04, 2011

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1 Answer

Overheating


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the clean one would be where the problem exists.
usually the head gasket gives out first to prevent damage to the head.
on occasion the head becomes damaged.
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Can I get a “very helpful” rating on this answer?

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