i have an early 70's model 105hp (4 cylinder) chrysler outboard which has me completely confused.<br /><br />i can get it to run fine when hooked up to the hose at my house even though it is alittle difficult sometimes to get it to start. once i get it started it runs ok and then if i check it the next day or a few days later it starts right up and runs good. water does come out the back of the motor in a good stream like it is supposed to when it is running. when we take it out on the water it starts right up and after it warms up for a minute we take off looking for the fish. the acceleration is good at that time but after a few miles of driving the boat the motor seems to just completely lose all power and stalls and never starts again. it has left us stranded 3 different times now and although i just purchased a cheap (much smaller) portable motor as a backup i am not planning on taking the boat out again until i can see if i can figure out what is going on with it. i've done the following to try to fix the problem:<br /><br />1. checked the plugs after each breakdown and all looks good (even replaced them just to make sure).<br /><br />2. changed the main fuel line with primer bulb since it looked pretty old (came with the boat when i purchased it a year ago).<br /><br />3. changed all the fuel out in both fuel tanks to make sure they had good fuel and oil mixture in them. (mixed oil at 50:1 ratio)<br /><br />4. had a problem with starter solenoid in the beginning so i replaced it with a new one which still seems to be working good and cranks the motor.<br /><br />5. changed the fluid in the lower unit.<br /><br />things i have not tried yet (but will be trying soon):<br /><br />1. cleaning the carb's etc...using the spray as mentioned here in these forums.<br /><br />2. changing the spark plug wires.<br /><br />3. the exterior fuel lines on inlet side of motor look pretty old(have purchased replacement lines but have not replaced them yet.<br /><br />basically the engine idles and seems to run great (when it is running). after running it for a while on the water it just seems to "lose" power and stall and then refuses to restart...please help...i'm tired of getting towed in all the time.... <br /><br />does anyone have any suggestions of other things i might try which may help correct this problem or possibly have an idea of what may be causing this condition?<br /><br />thanks in advance for any comments....
