EFPC Starts OK but Won't Stop

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skipper20
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EFPC Starts OK but Won't Stop

Postby skipper20 » Fri Dec 15, 2017 5:36 am

Picked up a nice 40 Plus with clutch and recoil start today. Engine # is EFPC 398AA0. Starts fine, runs smooth and idles down nicely but won't stop. Is there a stop button hidden somewhere or does the throttle cable just need adjusting? There is a large screw head in the middle of the throttle lever assembly but turning it in either direction made no difference. To shut it off, I had to choke it until the carb flooded. Please don't tell me this is SOP. What am I doing wrong? TIA,

Bill in Seattle

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seagull101
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Re: EFPC Starts OK but Won't Stop

Postby seagull101 » Fri Dec 15, 2017 8:50 am

Probably just needs an adjustment.

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Keith.P
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Re: EFPC Starts OK but Won't Stop

Postby Keith.P » Fri Dec 15, 2017 10:52 am

The large screw head you adjusted is just for tension, it holds the cable and stops it moving, you need to adjust the cable length, the adjuster is at the top of the carburettor, screw it down to slacken it off.

supersaint61
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Re: EFPC Starts OK but Won't Stop

Postby supersaint61 » Fri Dec 15, 2017 4:14 pm

the adjuster needs to be screwed down into the carb to allow the carb piston to drop lower

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Hugz
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Re: EFPC Starts OK but Won't Stop

Postby Hugz » Fri Dec 15, 2017 6:23 pm

And then the motor will stop when throttle lever is closed and incidently, when correctly adjusted, by lifting the tiller up it will rev up a tad.

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Collector Inspector
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Re: EFPC Starts OK but Won't Stop

Postby Collector Inspector » Sun Dec 17, 2017 10:31 am

It always tickles me when some one has a problem with not stopping a Gull.

BnC
Just took a leaflet out of the letterbox, saying that there's no reason I can't have good sex at 65.

Brilliant - because I live at no. 49 so it's not far to walk home afterwards!

Janzip
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Re: EFPC Starts OK but Won't Stop

Postby Janzip » Sat Jan 06, 2018 11:01 pm

Hi everyone,
isn`t it wondeful that someone has a Seagull that won`t stop? And that as a problem? I sure wish that I had his motor. My Seagull starts, runs for thirty minutes, then stops. I`d like to have it running, eternally!
Janzip

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Nudge
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Re: EFPC Starts OK but Won't Stop

Postby Nudge » Tue Jan 09, 2018 10:36 am

Hi everyone,
isn`t it wondeful that someone has a Seagull that won`t stop? And that as a problem? I sure wish that I had his motor. My Seagull starts, runs for thirty minutes, then stops. I`d like to have it running, eternally!
Janzip


Is it getting hot? Do you have a good flow of water?

Start a new thread and we can talk about it.
Is it better to over think, than not think at all?

Janzip
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Location: Finland

Re: EFPC Starts OK but Won't Stop

Postby Janzip » Fri Jan 12, 2018 10:50 pm

Hello Nudge,
I´ve discussed this problem earlier, here:
"Silver Century 75 stopping during run" on the "help" forum. Please try to find it. I´ll bet on a fuel problem because I have tried, as recommended, the ignition with a spark tester, and it gives a good spark until the last piston movement. Must have something to do with the float valve not letting enough petrol through or the main jet is too small. I have now another carb, from a modern moped, fits o.k. and the engine runs o.k. in a barrel and I have a series of jets for this dell'Orto. But, as winter has come, the sea has frozen and the testing barrel has been emptied, so no possibilities for a test run until spring comes.
Until then,
janzip

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Collector Inspector
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Re: EFPC Starts OK but Won't Stop

Postby Collector Inspector » Fri Jan 19, 2018 11:04 am

[quote]from a modern moped, fits o.k[/quote

One of many problems starts right there.

Simple old Gulls need simple Old Carbs........at least?

BnC
Just took a leaflet out of the letterbox, saying that there's no reason I can't have good sex at 65.

Brilliant - because I live at no. 49 so it's not far to walk home afterwards!

headdownarseup
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Re: EFPC Starts OK but Won't Stop

Postby headdownarseup » Wed Jan 31, 2018 11:44 pm

I agree.
I would refit the original carb to your seagull at least to try and eliminate certain other things before you decide the carb is the culprit here.
Start with the basics and clean everything from the tank right through to the carb. Strip the carb right down and pay careful attention to where the fuel comes into the carb and any filters along the way.
Most of the classic seagulls will have a very simple carb. They're fairly easy to strip apart and clean but often the cause of much grief if left dirty inside.



Jon


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