I am having a strange problem with this motor. If I get it out on the lake and open it up it lasts about 5 to 10 minutes and it dies. <br /><br />I set up a barrel at home and put the motor in it and it dies after about 10 minutes of being in neutral at around 4500 RPMs.<br /><br />It doesnt sputter before it dies, its like you turned the key off.<br /><br />Someone suggested a new battery and I put a brand new 115 amp hour battery in it and that is the only thing on it. <br /><br />The squeeze ball on the fuel line has gas in it when it dies and if I let it sit for a while it will start back up again.<br /><br />If I let it sit for an hour or so, it will last another 5 or 10 minutes. If I only let it sit for 15 to 20 minutes it will go a few feet and die if it even starts at all. Usually it will want to start but then just kill.<br /><br />To me it seems heat related like it is getting hot and there is some sort of thermal sensor that is shutting the motor down.<br /><br />Any ideas?
<br /><br />You either have an unvented fuel tank that gets a vacuum lock after you draw enough fuel, or. . .<br /><br />More likely, you have an ignition component that is failing when hot and starts working again when it cools down.<br /><br />Never run a two stroke at 4500rpm with no load on it. There is a very big risk of thermal runaway and engine destruction.<br /><br />Take the bonnet off and crank her up in the barrel. Leave her at idle and put a hair dryer or hot air gun on the ignition parts, one at a time, long enough to get it hot. If you get a failure that way you have just heated the failing part.<br /><br />Good luck, and let us know what you find.