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D1 Fuel Trouble
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pfk
Dublin, Ireland
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September 12, 2020 - 11:22 pm
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Hi All, I am looking for some guidance, I have with some expert help restored a D1 (photo on my profile). I am pretty pleased with a DCI system fitted, it starts fairly easy within a short on the road it dies, like there is no petrol, there is good flow from the petrol tank so I am assuming it may be a carb issue? but as it starts so easily I am bewildered!! any suggestions would be much appreciated!   

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Stoo63
GLASGOW
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September 12, 2020 - 11:30 pm
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Hi Paul and welcome to the Forum. I'm assuming that you've dismantled the carb and given ti a thorough clean?

You will find just about everything you could ever want on the Forum via the FAQs and technical sections;  ** Please log in to view **

Have a really good nose around the forum and enjoy yourself. Looking forward to seeing your progress.

Good Luck!

All the best,

Stewart

 '55 D3 Battery; '58 Square Four (project); '59 D1 direct lighting plunger; '59 Tiger Cub; '60 5TA;  '76 FS1-E; '97 Honda Sky SGX50.

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cocorico
Central France
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September 13, 2020 - 8:21 am
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Hi. My first reaction would be a partial blockage in the fuel line, allowing fuel to fill the carb initially for starting, but then not coping with increased demand. Check the tank cap ventilation hole, fuel line and fuel tap internal filter.

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pfk
Dublin, Ireland
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September 13, 2020 - 5:43 pm
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Hi Stewart / Bob,

Thank you both for your notes and suggestions. I will be acting on you advice and looking at the forums, still just navigating myself around the website!

When I get a few miles down the road, I'll report back!! 

Kind regards.

Paul 

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GlenAnderson
Dover
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September 13, 2020 - 9:14 pm
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I’d also check the carb fuel inlet, in case that’s partially blocked. 

Do you get a steady stream of fuel out of the vent hole when you tickle the carb? 

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Number6
Lincolnshire
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September 14, 2020 - 7:46 pm
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Yes further to the above, I'm assuming the carb is original old style, separate float chamber on the left side, note the hole in the bottom for the bottom end of the float needle can get filled up with crud, when it does the float is not be able to go down all the way it should (guess how I know! laugh ) if it barely goes down at all it could restrict fuel flow that way.

Mike H --

Murphy's 4th law of motion states that any small object that is accidentally dropped will immediately hide itself under a larger object.

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JustinW
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September 15, 2020 - 8:03 am
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It's really worth taking the carb off and teaching yourself how it all comes apart. At some point you'll be doing this miles from home so best to become familiar.

When apart, check all little holes in the body are clear of obstructions. A can of carb cleaner is good for this, with the little tube attached.

Note that one of the screws on body of carb is specifically to give access to little machined hole.

Blast the jets with carb cleaner. Clean bottom hole of float bowl by gently revolving drill bit in fingers. There could be years of sediment in there. 

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