Clear Fuel Line

[Roostabunny]

Not all tubing is compatable with fuel. That Home Depot stuff may be regular vinly or ?? and not appropriate. Get the proper stuff and be safe.

Second that - just make sure you know what you're getting and that it's rated for constant contact with gasoline and heat.

[bwringer]

The fuel fittings on most larger GS models are 8mm, which converts very nicely to 5/16 inch. 5/16 fuel line will work peachily.

The fuel fittings on most smaller models are 6mm. Unfortunately, 1/4 inch converts to about 6.3mm, which means that some brands of 1/4 inch fuel line are too loose on 6mm fittings. Some brands are made a bit smaller and will work OK, though.

The blue translucent fuel line from CRC2 is the best stuff I've ever seen, doesn't kink, and lasts for years. However, the 1/4 inch version is too loose on 6mm inch fittings. Usually, rubber fuel line hose will work OK.

Inches suck, and I have no idea why everything here in the US is still only available in inch measurements. I still haven't found a good source for metric fuel and vacuum line other than ordering OEM.

McMaster-Carr sells metric tubing, but it's very difficult to tell which material would be best. Perhaps more research is needed...

[robertob]

Most of the clear or clear-tinted fuel line is made from Tygon (F-4040A is the old-school yellow one). Don't use vinyl because it gets hard after a few years and it melts at like 175 degrees F (less for the cheap stuff from HD). Tygon F-4040 is made specifically for fuel & oil.

[Nessism]

According to the on line parts fishe, Suzuki specs 7mm fuel hose on all the various models from 450 - 1100. 5/16 automotive fuel hose, which is much thicker and stiffer than motorcycle fuel hose due to the woven fabric material contained within, usually works but fits slightly loosely on the petcock nipple. The main portion of the petcock nipple measures 8mm, with the barb larger, thus there is not an actual interference fit when using 5/16" hose except on the barb. The 7mm hose that Suzuki sells is quite flexible thus it stretches quite easily over the petcock nipple.

All this said, I'm using 5/16" automotive fuel line on my 850 and it works fine. Using a clamp to make sure it does not leak.

[chef1366]

I use 5/16 FUEL line with clamps

[themess]

Most of the clear or clear-tinted fuel line is made from Tygon (F-4040A is the old-school yellow one). Don't use vinyl because it gets hard after a few years and it melts at like 175 degrees F (less for the cheap stuff from HD). Tygon F-4040 is made specifically for fuel & oil.

Be sure to buy F-4040 or F-4040A. The Tygon name is used on many products, most of which aren't rated for fuel use. McMaster-Carr has it as part

#5552K23 1/4" OD, 1/8" ID $0.71/ft
#5552K24 5/16" OD, 3/16" ID $1.13/ft
#5552K25 3/8" OD, 1/4" ID $1.25/ft
#5552K26 7/16" OD, 5/16" ID $1.84/ft