Page 104 - Motorcycle Trader (February 2020)
P. 104
Our
Bikes
If there’s a
moral to the
story, treat
with suspicion
any vacuum
lines that
are over
1
20 years old
front. Closer inspection revealed both were
leaking, and I already knew that the three
settings (on, reserve and prime) weren’t
working as they should.
OUR BIKES
With the fuel siphoned out, we got to work
removing the thing for a closer look. Suspect
number one for the tap was a washer that
incorporated an O-ring. It defied any
attempts at removal, as it was a neat press-
fit behind a ridge in the casting. One option
was to fit a fresh O-ring over the old one, but
2
that experiment failed.
Suspect two was the diaphragm fuel
switch. It seemed as clean as the proverbial
whistle when disassembled, with no obvious
breaks in the diaphragms or damage to the
spring, but, once reassembled, it still leaked.
Right. Now a more determined and skilled
individual could probably spend a day or
more on it and eventually, maybe, sort out the
problems. That’s when I reached for the iPad
and went hunting for prices on new units.
Parts availability for these 1990s Hinckley
machines is still pretty good, with a
3
few retailers offering searchable online
catalogues. It turned out that a complete
the spigot on an intake manifold to the assembly, including some sealing washers
fuel tap was perishing at one end. It’s and fresh knobs was going to set me back
one of those normally invisible issues $130 each, delivered. That sounded fine to
that quietly causes chaos. I really should me, if it meant not burning a heap of time
have twigged to it earlier, having recently on something that might not work. I ordered
suffered similar problems on the old two, one as a spare for the 1200.
Blackbird. So that was one hassle that was A tip here: I ended up using Fowlers in the
easily fixed. UK. One mob I dealt with quoted a flat $125
ONE Fuel tank wears
If there’s a moral to that story, treat with protection from engine heat. for delivery without bothering to check the
suspicion any vacuum lines that are over TWO Guido’s been having size of the shipment, while Fowlers actually
20 years old. a lot of trouble with his checked overnight and came back by email
Next, the leaky fuel tap. Like of lot of diaphragms lately. Check with a delivery cost of $30.
out the fun he had with his
its contemporaries, this is a surprisingly Now I’m just waiting for the parcel
R100GS on page 104.
complex bit of kit. It’s vacuum operated to arrive. Once it does, about an hour’s
THREE Vacuum-operated fuel
– so there’s a spring-loaded diaphragm taps are a thing of the past reassembly will see the old Super III up
set at the back, plus a three-way tap up thanks to fuel injection. and running again, on all three cylinders!
102 MOTORCYCLE TRADER
