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Post by wenter on Sept 7, 2007 11:11:37 GMT -5
What size vacuum lines are used on 150cc scooter? (There are couple different ones) And what is the good place to buy them on-line? I checked all autto parts stores in my town - they don't have it  |
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Post by scootermikie on Sept 7, 2007 13:17:40 GMT -5
NAPA auto parts has Gates hoses made just for gas and vacuum lines. IIRC, I bought 3/16" (hole diameter). Just put a little spit on the stubborn fittings and the hose will slide right on. And don't forget to use good clamps. I use the "worm" style clamps.
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Post by mgreenfield on Sept 8, 2007 17:19:46 GMT -5
Anything that will fit the connectors & not collapse will work for a vacuum line. There's little-to-no air flow through them.
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Post by wenter on Sept 8, 2007 23:13:46 GMT -5
I figuered out today that 7/32" vacuum line and 3/8" corbina clamps works perfect!!!
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Post by scootermikie on Sept 10, 2007 20:20:26 GMT -5
I figuered out today that 7/32" vacuum line and 3/8" corbina clamps works perfect!!! Will they work for gas lines too? |
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Post by wenter on Sept 11, 2007 9:30:59 GMT -5
No, for gas line I used a line with little bigger inside diameter. I don't know exact size - used some line from friends garage.
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Post by slowscootin07 on Sept 11, 2007 10:08:00 GMT -5
Don't forget that regular vacuum lines are NOT designed for fuel transfer. Make sure you get the proper fuel rated hoses for that purpose. Regular vacuum lines will melt if subjected to gasoline and or oil. Alternatively, there's nothing wrong with using fuel rated lines for normal vacuum operation. In fact, they're a lot stronger than regular rubber hoses but sizing may be an issue. I also suggest to use what is called fuel injector hose clamps since they're stronger and don't loosen up as easily. While you're at it, replace all the vacuum tee's too.
Jeff
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Post by YellowScooter on Sept 11, 2007 10:36:06 GMT -5
I plan to convert my rubber hosings to hard steel lines when my new pump gets here. I'll use little hose bits for fittings off the tank, to the pump, and onto the carb,  |
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Post by scooterollie on Sept 11, 2007 11:03:56 GMT -5
Steel isn't always the better answer. It absorbs and conducts heat MUCH better than rubber and might contribute to vapor lock. Also, be certain you allow a long enough piece of rubber hose in places where flex is important, such as from the frame to the carb. Nothing wrong with good quality rubber hose. You are probably already aware of these issues but thought I might mention them in case you aren't.
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Post by sicily150 on Sept 12, 2007 0:38:12 GMT -5
read my posting on GY6 emissions
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Post by sicily150 on Sept 12, 2007 0:41:29 GMT -5
i'd like some opinions on the removal of the vacuum and or charcoal canister on this scooter. its seems to just get in the way and i'd like to remove it and plug up the parts where the hoses connect, can this be done w/o creating any adverse affects to performance or the overall reliability of the motor.
my thread entitled GY6 emissions has a clearer description of what I'm talking about
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Post by sicily150 on Sept 23, 2007 13:28:42 GMT -5
i just changed my hoses, use 5/32 gates for the vacuum and go to a motorcycle dealership for the fuel line, you wont find the proper size in a auto parts store. 1/4" is way too big for the fuel line.
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Post by sicily150 on Sept 23, 2007 13:30:00 GMT -5
PS: 5/32 worked on mine but its always best to match whats already on there with whatever you're buying since sizes can and may vary on different scooters
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