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Keeping Spree Elite Aero 50cc and Gyro Alive!
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PostPosted: Wed Apr 19, 2017 10:50 pm 
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Elite
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Joined: Mon Feb 01, 2016 11:57 pm
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Location: Florida
I'm still fiddling with my '84 Spree - replacing just about everything as I go lol. The previous owner had rigged up all kinds of janky fuel lines, so I figured I'll replace all of them. The question is what size is the inside diameter? Where can I purchase some? Finally which brand should I buy? I'd like to buy enough to do a few scoots, so buying a roll is ok too.


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PostPosted: Thu Apr 20, 2017 9:42 am 
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CB900F
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Location: seattle
The inside diameter of the fuel line is really not the question. Its what will squeeze snugly onto the petcock and carb bung. I get bulk fuel line from my local auto parts store for $1/ft or so and its just clear hose rated for fuel. I suggest bringing your petcock to the store with you to test out the sizes they have before you buy. The actual OEM size is typically not carried and will need to be obtained from a Honda dealer if it really matters to you, and youll pay a tidy sum for it.

Keep in mind that the vac hose is a smaller diameter so youll need a different size for that. Its best to have the petcock with you so you can gauge both sizes needed. You should be able to walk out of the store with a couple feet of each size for $10 or less total.

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PostPosted: Thu Apr 20, 2017 12:59 pm 
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Spree
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Location: Seattle
bring your old fuel/vaccum hoses to local hardware or autoparts store they will matched it up for you, add on a small fuel filter onto those fuel hoses if you like to, they are cheap, but go with good brand name one, avoid unbrand cheap chinese stuff.........rubber or clear one on your choice, rubber last 3-5 yrs or longer, clear one last only one season, but looks cool, if you have to go with clear hose, get Prime Line brand the best i know of.


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PostPosted: Thu Apr 20, 2017 1:55 pm 
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Spree
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Joined: Thu May 24, 2012 8:09 pm
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Location: Avon Minnesota
I've been using Tygon brand fuel line for years in all my scooters. It is clear yellow, so you can see what's going through, and available at most auto stores. It's a good quality product and haven't had any issues with it. The size for the fuel line is 3/16" ID and 5/16" OD. This size will work for the vacuum side, but is not very snug without clamps.


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PostPosted: Thu Apr 20, 2017 3:48 pm 
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Elite
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Joined: Mon Feb 01, 2016 11:57 pm
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Location: Florida
Thanks for the suggestions! Will 5mm fuel line work? I've also seen 4.5mm listed - is that fuel or vacuum line size?


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PostPosted: Fri Apr 21, 2017 1:02 pm 
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Location: Deepinnaharta, Texas
Greetings:

Honda fuel is 5mm ID. Vacuum is 4mm ID. Most American auto-parts and home improvement stores carry only SAE line - at least all the stores I've found, and the 1/4" is too big for a tight fit on the carb bung. You can find it using online retailers a lot cheaper and easier. Sold by the foot, meter or whatever. Get lots. It's cheap.

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PostPosted: Fri Apr 21, 2017 3:29 pm 
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Elite
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Joined: Mon Feb 01, 2016 11:57 pm
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Location: Florida
I think I have found a supplier online that sells genuine Honda stuff for a good price. I had the digital caliper out last night measuring hose IDs and the barbs on the carb and fuel petcock lol.


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