--- In
DSN_KLR650@yahoogroups.com, Darren Clark
wrote:
>
>
> 5MM = 5/25.4 = 0.1968" ~ 3/16"
> 6.5MM = 6.5/25.4 = 0.2559" ~ 1/4"
>
> specify "Fuel Line", some hoses are made of material that don't get
> along with gas.
> and I'd guess 1/4" for fuel and 3/16 for vacuum.
>
> Darren Clark
> 2004 KLR-650
> Fowlerville, MI
>
>
You would think that 6.5mm and 1/4 inch would not make much
difference. At least by the numbers illustrated.
sigh.
and if all the connections are easily accessed and made of metal, the
1/4' will probably work just fine.
In my experience, 1/4 fuel line does not a 6.5mm make (easily).
Yeah, it will work...except the carb fitting is plastic and not
easily accessed on the day you can't find your glasses--working with
diminished near vision on a bright day, temps over 100F, while parked
on a black, asphalt road with the hot wind blowing up your skirt. or
was it down my neck. Details to follow in 'short story below'.
however,
If you have the choice, the mm hose works much better--as in the high
quality BMW fuel line (looks like cloth over rubber) is 6.5mm; as in
OEM BMW /5 /6 fuel line.
Now, for a short story--
There I was; South Dakota prairie, 100F, black asphalt road, wind,
and a dead, green pig. and a long way to a gas station. The good
news: I was pretty sure it was fuel starvation induced by the fuel
filter mod.
SO,
I had to do a roadside 'swap' with a new 1/4" fuel line, previously
purchased that day--only to be nearly exasperated to tears trying to
get the 1/4" fuel line go over the flexing, plastic male end on the
carburetor. The part is in the shade, the bright light will not
allow my eyes to dilate enough to see the nipple! plus, I can't find
my glasses. (Problem: When did my arms get so short! I should be
able to see this!) I was genuinely frighted that I was going to
break that plastic carb part. Later, I replaced that 1/4" line with
BMW fuel line (sorry, it was a gift, I know not the source) commonly
found on Airhead BMW's--and it went on much more smoothly--and did
not leak, even without clamps.
The reason for the roadside swap was to 'overcome' the in-line fuel
filter that was leaving me stranded with over 1 gallon of unusable
fuel. as reported and discussed here previously. Yes, Virginia,
during that road side swap, I had plenty of gas to get home but the
filter was blocking progress. or at least fuel flow. I got the 1/4"
fuel line installed by 'sacrificing' an ink pen, forcing it into the
fuel line to expand enough to fit over the plastic carb part.
Unfortunately, other than the BMW fuel line/part, I have yet to see
anything other than 1/4" fuel line in auto parts stores, this side of
the Atlantic pond. Widely available in Italy and Spain--like that is
going to do us a lot of good here.
revmaaatin.