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I have a 2002 Honda 919 with about 12,000 miles on it. Today i started to let it warm up before i was gonna go for a ride, i let it run for about ten minutes when i came back there was a large puddle of coolant coming from the bike and the temp guage was pegged .I turned the bike off and started looking for a leak i couldnt tell where it was coming from so filled the bike back up with coolant and tried to start it. Now the bike just turns over it will not start. Im gonna hook a pressure tester to it tomorrow but why wont it start? Im thinking it got to hot and killed the engine but im hoping it might be something else.Any ideas anybody of what could be leaking or what other than killing the engine could of happened to keep it from stopping.:crying:
 

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Warming a bike up at idle is much better for it than low revs. A 10min warm up would be unnecessary as the bike should be at running temp after 30 seconds to 2min depending on how cold the weather is, how old the bike is etc.

FIRST: Check the oil for coolant. If there is coolant in the oil it will appear runny, look like chocolate milk, and smell sweet.

If there is coolant in the oil, put the bike on stands, pull the engine and replace the head gasket. DO NOT RUN THE BIKE IF THE OIL IS BAD.

If all that checks out, change the plugs and do a compression test. If the bike turns over like normal and has good compression then you just need to figure out weather it's not getting fuel, or spark. Overheating a bike can give it some gremlins, but they are usually pretty easy to deal with. It can also destroy an engine.

If the bike does not have good compression, then you probably warped a head, possibly even the block.

It sounds to me like you probably caught it in time. The coolant will overflow and spill out of a dump tube when overheating which would explain why you can't find a leak. usually if you fried the engine, it wont turn over at all.

Remember though... even if you did dodge the bullet and all you need are new plugs, you still have to figure out why it overheated in the first place, or it's going to do it again.
 

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You going to have to take the tank off to change plugs, so check stat is opening ok , that could be the cause of the overheating.As they say the engine turned over ok, test the compression hope it works out ok:thumb:
 

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in a car i had i drove to get a new radiator 25 miles away, i topped the coolant up b4 i left. i got to the shop, bought the rad, topped up again and drove back. i got 12 miles b4 the engine died. the leak had just got bigger, engine wrecked. needed a new head, pistons skimmed etc. £700 damage and nearly got killed by cars as i broke down on a dark wet winter night near a corner! hope this is not whats happened urs mate.
 
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