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  1. P

    Wits end with this JW18 3 hp engine

    I can throttle it up and it sounds good.. then it dies like its running out of something. Then restarts.
  2. P

    Wits end with this JW18 3 hp engine

    I always have to choke it. It does restart easy. I do not have to wait other than the normal 1-3 seconds after it dies to reposition myself and pull the cord. I used the settings for the adjustment screw that are in the documentation, however, I've tried several turns of leaner or richer and...
  3. P

    Wits end with this JW18 3 hp engine

    Yes, fuel flows well from the brass petcock tube with the cap on and vent open. Delivery seems good. It starts easily and runs well also for 10 seconds and then dies out. It sounds to me like its running through the fuel in the float bowl and now filling up fast enough which is what I think...
  4. P

    Wits end with this JW18 3 hp engine

    HA. I thought it would be simple, but I might be better off just buying another carb. I've rebuilt tons of carbs, from weed eaters to lawn mowers to jetskis, boats, trucks, but this one I just can't get right for some reason. I think the previous owner overtightened the adjustment screw and...
  5. P

    Wits end with this JW18 3 hp engine

    I don't have a local boat shop and I'm not in Canada, but thanks!
  6. P

    Wits end with this JW18 3 hp engine

    It might have been an ebay kit, i don't remember. Do you have a recommendation on where to get a better one? It's 100% carb related.
  7. P

    Wits end with this JW18 3 hp engine

    Back to this engine. It starts, it runs about 10 seconds, and then dies out. Sounds fuel related, sure. Anything specific I should look at? Carb has been gone through, soaked, ultrasonic, etc, and a kit put in it, but it sure seems like its running out of fuel, but it restarts easily, runs...
  8. P

    Wits end with this JW18 3 hp engine

    It runs. Need to dunk the lower unit in water and see if it idles and revs up and pumps water now. I'm surprised I had all the parts still after having it sitting in the corner of my garage. I was so close to throwing it away...
  9. P

    Wits end with this JW18 3 hp engine

    /facepalm. I've been dinking with this thing for years and think it was simply a case of having the plug wires reversed.....i just switched them and got it to fire for a few seconds. time to put it all back together and see what happens.
  10. P

    Wits end with this JW18 3 hp engine

    I bought this complete engine at an estate sale and found the ignition coils to be cracked and bad. I replaced them a couple years ago and rebuilt the carb at that time, cleaned out the fuel tank, petcock, etc, and put a new water pump in it at that time as well. I could never get it to start...
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