Tagged: Sea King single
April 14, 2019 at 8:57 am #173306
I have a Sea King Single with a carburetor as shown in the diagram. The motor runs but it’s very difficult to start. The carburetor main needle has to be in a very narrow range, perhaps 5 degrees or so. I suspect the reed plate may be the issue, since I know the motor has been apart by… well… not an expert.
It has a reed plate (#30) and a stop plate with a dimple (#28). It also has two different spacers, one thicker than the other. Can someone confirm whether the diagram is correct, or if there was a different version of this carb? Also, where are the two different spacers supposed to go?
As currently assembled, there is no clearance between the reed plate and the dimple on the stop plate, even with the thicker spacer between them. Is the stop plate supposed to keep constant tension on the reed?
Thanks for your help!
US Member - 1 Year
Topics: 43April 14, 2019 at 9:31 am #173310
Those things varied over the years. Here is 1961. Honestly, I forgot how you determine what “as required” is. Actually, I never worried about it much. They seem to work no matter what you do. The reed probably isn’t your hard start problem anyway.
- This reply was modified 2 months ago by frankr.
US Member - 1 Year
Topics: 43April 14, 2019 at 11:38 am #173320
Thanks, Frank. I’ll look for that third plate, which seems to be in both versions of the diagram.
Topics: 21April 14, 2019 at 12:17 pm #173326
On my 1951 5hp I ended up using only one spacer and she runs fine that way. Make sure to prime it for 8 – 10 seconds before trying to start it.April 14, 2019 at 9:38 pm #173408
Well, I got all the way into the carb today, I think the float might have been the problem. It was running very rich, with the main jet open only 1/8 of a turn. I’ve made a new float, and will adjust the fuel level a lot lower than it had been, then give it another try.
Thanks for the responses,
TomApril 16, 2019 at 7:45 am #173509
Pretty sure it was the float… I replaced it, and used the thinner spacer between the reed plate and the stop plate. The motor starts easily and runs quite well. Thanks, folks! T
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