Fuel Line Lengths and Sizes????

[SpecOps13]

I'm going through my 94, updating everything I can. The bike's running as perfect as it ever has for me. I'm trying to head off the next Gremlin that'll try to ruin my riding fun.

I want to replace all of the Gas / fuel lines / hoses with the best stuff I can find. Something that'll hold up longer to Ethinol. I'm still able to get Non Ethinol gas right now. I keep a stock (20 Gallons) for the bikes and a small boat with a big engine. Not too sure how long that supply will remain available and I sometimes have to fill up with Ethinol on longer rides. The bike runs like crap when I do that.:bang head:

Anyone know the lengths and sizes I need from the tank to the carbs, drains, vents too I guess. Who sells a High Quality Fuel Line and who makes it?


Thanx,

 

[SpecOps13]

I'll answer this myself over time so the next person to do it has something to go by...

After inspecting all of the lines, I found that it wasn't necessary to replace the hose on the drains and vents. Any contaminent entering them is leaving the bike anyway.

I did a search to find the gas lines that would stand up to ethinol. I found line that's USCG Approved for marine use at West Marine. I bought 3' of 5/ 16" and 4' of 1/4". The spec on this hose says it's fantastic stuff. it's marketed by Teleflex. See the Fuel Line Properties if you're interested. http://www.teleflexmarine.com/shieldshose/website/section/product/103/8

Marked on the fuel line in white is the following: Shields Series 368 Low Permiation Fuel Feed - EPA Compliant ASRAPLINE368 - USCG Type A1-15 SAE J1527/ISO 7840PH 1/4" (OR 5/16") Use With ABYC Compliant fittings - MADE IN USA 02191OA

I have way too much line for the job at hand but I hate return trips for parts.


One of the lines is T'd between the 2 right cylinders. I found a variety pack of T fittings at Advance auto for about $7. The T sizes are 1/4", 5/16" and 3/8". These should be available at most auto parts stores. These fittings are Brass, I don't know if they're really ABYC Compliant but they were the only game in town. I'm reusing clamps where possible. I'll try to give sizes and measurements of the lines as I do them tomorrow.

ADDED: 6/22/2010: I pulled lines one at a time and found that the hoses that were on the bike are ethinol proof, atleast all but one. The line that I bought was much thicker (Outside Diameter) than what was there making me scramble through my junk boxes for clamps. The hoses from Yamaha are molded and would be a piece of cake to replace 1 for 1. Somebody must have updated the hoses on this bike when Yamaha transitioned to Ethinol Proof Gas Lines. There's no way the brass T Fitting would have gone in place with 3 pieces of fuel line and clamps on it. So it's a good thing that what was there was like new. I feel kinda like a rookie mechanic, with this fiasco. I did get the one line replaced the comes from the fuel pump to the the carb block. I cut it open and found some rust and residue at one of the curves, it was not ethinol proof line. I'm glad I did get into this because that one line may have and would have given me grief. Next time, I'll bite the bullet and buy the factory molded lines. I spent the whole day working on this, it could have been a 2 hour job....

Hope all of this effort helps somebody down the road. Either get Yamaha replacements or use the Gray Colored Marine Hoses.

 

[Darrick Chapman]

I'll answer this myself over time so the next person to do it has something to go by...

After inspecting all of the lines, I found that it wasn't necessary to replace the hose on the drains and vents. Any contaminent entering them is leaving the bike anyway.

I did a search to find the gas lines that would stand up to ethinol. I found line that's USCG Approved for marine use at West Marine. I bought 3' of 5/ 16" and 4' of 1/4". The spec on this hose says it's fantastic stuff. it's marketed by Teleflex. See the Fuel Line Properties if you're interested. http://www.teleflexmarine.com/shieldshose/website/section/product/103/8

Marked on the fuel line in white is the following: Shields Series 368 Low Permiation Fuel Feed - EPA Compliant ASRAPLINE368 - USCG Type A1-15 SAE J1527/ISO 7840PH 1/4" (OR 5/16") Use With ABYC Compliant fittings - MADE IN USA 02191OA

I have way too much line for the job at hand but I hate return trips for parts.


One of the lines is T'd between the 2 right cylinders. I found a variety pack of T fittings at Advance auto for about $7. The T sizes are 1/4", 5/16" and 3/8". These should be available at most auto parts stores. These fittings are Brass, I don't know if they're really ABYC Compliant but they were the only game in town. I'm reusing clamps where possible. I'll try to give sizes and measurements of the lines as I do them tomorrow.

ADDED: 6/22/2010: I pulled lines one at a time and found that the hoses that were on the bike are ethinol proof, atleast all but one. The line that I bought was much thicker (Outside Diameter) than what was there making me scramble through my junk boxes for clamps. The hoses from Yamaha are molded and would be a piece of cake to replace 1 for 1. Somebody must have updated the hoses on this bike when Yamaha transitioned to Ethinol Proof Gas Lines. There's no way the brass T Fitting would have gone in place with 3 pieces of fuel line and clamps on it. So it's a good thing that what was there was like new. I feel kinda like a rookie mechanic, with this fiasco. I did get the one line replaced the comes from the fuel pump to the the carb block. I cut it open and found some rust and residue at one of the curves, it was not ethinol proof line. I'm glad I did get into this because that one line may have and would have given me grief. Next time, I'll bite the bullet and buy the factory molded lines. I spent the whole day working on this, it could have been a 2 hour job....

Hope all of this effort helps somebody down the road. Either get Yamaha replacements or use the Gray Colored Marine Hoses.

I was trying to find the fuel line sizes so I could change the filter out....this helped alot and even more with the info about the lengths thanks....i know I'm late at the post