Both bikes were kitted out as
detailed above and run in before leaving the UK. Initial impressions were that
the GS seemed to be robust and well made. Components are nearly all made from
stainless steel, aluminium or plastic and paint finishes on the frame etc are
very good. The bike is quite light, the seat height is fine (even with the
standard seat and passing on the factory lowering option) and the bikes have a
good performance in return for excellent fuel economy (@~70 mpg on normal
cruising at 65mph to give a tank range in excess of 200miles + another 50 on
reserve).
Once on the road we have been
really delighted at the bikes handling – they are fun to ride, even fully
loaded. Off road, both bikes have a tendency to weave on loose surfaces at any
speed over 40mph, but that may well be down to our inexperience at off-road
riding, rather than a problem with the bikes. This resulted in Maggie’s crash
in Argentina (see Online Journal for the gory details!).
The GS holds less than 2.5
litres of oil – not a lot of oil, doing a lot of work - so we performed oil
changes every 2,500 miles with a filter change every 5,000 and using the
recommended Castrol GTX, which was widely available throughout our travels. The
oil change whilst travelling is always messy as the GS has a dry sump and you
have to dismantle the tank fairing to get at the oil tank (involves removing 16
bolts). In addition to draining the oil tank on the upper left hand side of the
bike, you need to drain the oil from the sump (necessitating dropping the crash
bars & belly pan) and the filter (if required) on the right hand side of the
engine. Oil changes are a bloodbath of GTX! – it ends up everywhere and the
whole operation is quite time-consuming, fiddly and messy.
F650GS Fork Problems:
The 2000 - 2003 model F650GS has a design weakness in the axle
mounting on the Showa forks. The forks can break, the wheel comes off and
you can get hurt - badly. We were alerted to this fact by Wayne Carruthers,
a fellow GS rider in Oz, who had been looking at our website and noted that
Maggie’s bike had a fork leg replaced under warranty, so he contacted us asking
for details. The bike had blown 2 fork seals in 3000 miles so my local dealer
replaced the fork leg under warranty with no quibbles. When asked the reason
for his curiosity he sent me a link to an Adventure Rider forum describing a
series of horrific incidents with the GS where the front wheel detaches from the
bike (www.advrider.com/forums/showthread.php?t=371650).
The incident was also covered by Superbike Magazine in their January
2009 issue.
The supporting metalwork around the leading axle mount can
fail causing, in the worst examples, the other axle mount to fail and the front
wheel to break off the bike. Wayne has traced and documented 10 other incidents
of this nature. In these incidents, the riders were lucky enough to survive the
ensuing crash, in some instances with serious injury (broken arms / collarbones
etc). What is troubling is that if a bike suffered this wheel–mount failure at
speed and was subsequently destroyed in the crash and the rider killed, the
cause of the accident might well go un-noticed or be attributed incorrectly to
rider error / speeding / road conditions etc.
Over to BMW...Surely such a catastrophic failure merits a
product recall? Not so. But it does merit a product redesign. Late 2003+
models have improved design fork lowers with more metalwork bracing the axle
holders on both forks. The cause is clearly an inadequate design of the fork
legs in the 2000 – 2003 models, possibly exacerbated by porosity in the fork
castings. The corrective action should be to redesign the forks, adding more
metal to brace the axle support. This has been implemented by BMW on 2004+
models. To date no action has been taken to address 2000 – 2003 models
already on the road, fitted with the old design fork leg. BMW have been
contacted by affected owners and in what can only be described as crass
corporate irresponsibility refuse to acknowledge there is any problem, putting
it down to owner abuse / negligence / damage. They "reserve the right to
change, alter and enhance component or assembly design as part of a programme of
constant product improvement through the normal product lifecycle". These
bikes are marketed and sold as ‘dual sport’ models with the label ‘adventure’
stamped all over them and it is not unreasonable to assume they will see some
off road use.
We wrote in protest to BMW to no avail. They addressed
the points in our letter but avoided any detailed answer on why the forks were
redesigned if there is no problem and this is the crux of this problem and why I
think BMW are behaving in a totally irresponsible manner. I do not believe
that designers are permitted to waste time improving a design if there is no
benefit - sure OK if it makes something cheaper / lighter / easier to make /
sexier or whatever, but here we have something that adds weight / bulk and the
only reason to do that in this instance is to improve safety margins.
For our two bikes, we changed the right hand fork for the new
design (@ £170 per bike & doing the work ourselves). The RH fork has the
axle pinch bolt and is the weakest of the two fork legs. The LH fork is
more robust with more metal bracing for the ABS and axle thread.
We are both left feeling absolutely disgusted with BMW, their
stance over this problem and their reluctance to issue a product recall. I
only hope that the next incident I hear of regarding these forks does not
involve a law suit over the death of a rider.
NOTE: In June 2009 I contacted VOSA (UK vehicle safety
agency), who have raised this issue as a formal safety investigation.
NHTSA (equivalent US body) have also raised a parallel investigation.
F650GS Starting Problems:
The biggest problem on the
actual journey by far,
which affected both bikes at the same time, was their reluctance to start at
high altitudes in cold temperatures. It started in Northern Argentina where we
had our first overnight stops at altitudes over 2,000 metres with a cold morning
to follow. Since then we were plagued with the problem all the way through
Chile, Bolivia, Peru and Ecuador. The bikes refuse to fire up (usually in front
of a vast audience) and the first time it happened, we got them running by push
starting but this has only worked on this occasion. For the rest of the trip,
we usually got them running by standing them in the hot sun for 30 minutes and
they eventually started. We were dreading the day when we’d wake up to overcast
skies! In Ecuador the problem deteriorated and we ended up jump-starting them
off a car. The bikes went into BMW in Quito but they could find no problem. We
ended up carrying a can of ether to spray down the intake on cold mornings,
which seems to do the job but is yet another bulky item to carry.
Every time we return to lower
altitudes, the problem disappears – down on the Pacific coast of Northern Chile
& Peru and we had no problems at all in Central & North America. Once the bikes
are started they will restart all day and the problem only recurs when they have
been standing overnight. The batteries and charging systems have been checked
and are fine as are all the obvious things like plugs & air filters. We have
communicated with several sources in BMW and they know there is a problem. One
Munich source confirmed that during development the bike was not tested for cold
temperature / high altitude starting and the condition may be worsened by
possible inferior fuel in South America.
To be honest, this problem
really shook our confidence in the bikes and we were very wary about any
overnight stops in high places, trying to ensure that the bikes were kept warm
indoors. In Cuenca in Ecuador, we met a local guy who had a same year model
F650 and had no problems at all in starting, but
www.F650.com
is full of similar stories to ours. We even considered whether it would be
worthwhile dumping the Catalytic converter. Any advice or helpful suggestions
would be gratefully appreciated!
Brake
Fade:
In Peru, on the road from
Abancay to Nazca, a spectacular twisty 100-odd miles of hurtling through
valleys, canyons and river gorges, the rear brake on KP failed on one of the
steep downhill sections. The brake calliper was roasting hot to the point where
the brake fluid stopped working. We stopped for 5 minutes and it recovered. We
later changed the fluid (it had done 12,500 miles and was off-colour) and it
seemed OK. 4,500 miles later, in Guatemala on a similar hairpin twister, the
brake failed again – the pedal drops all the way down and there is no feel or
action from the brake. Maggie’s bike has also had this problem in Ecuador,
again on a long twisty descending road with lots of deceleration needed coming
into sharp bends. The brake is getting a lot of use, continuously braking
into the hairpin descents and then dabbing the rear to steady the bike going
round the sharp bend. Ambient air temperatures were warm as well, but I think
there is a design flaw as we have never had this problem on any previous bikes
and we are now very wary of this phenomenon on prolonged winding descents.
Letting the calliper cool for 5 minutes recovers the brake and we have had no
problems with the front brakes. In the US we changed the brake fluid for a
competition grade fluid, which seems to have eliminated the problem.
Horns
One fairly trivial but
actually fairly important deficiency that we only really found on our journey
was the bike’s horns. At home in UK/Europe we rarely use the horn and so had
not really noticed how pathetic it is. In our first Latin American traffic jam
we realised just how vital it is to let people know you are there before they
run over you. To be honest you may as well just lift your visor and shout at
oncoming dangers, as this would be more effective than parping the silly single
OE horn on the GS. During the Interlude when we left the bikes in Mexico, we
procured some Stebel Magnum Horns. We were told they would fit directly where
the old horn is sited – just snip off the old connectors & crimp on the new ones
provided, they don’t need any extra relays or wiring, put out 136db and cost
around £10 each. We bought the horns after hearing one fitted to
a friend’s new GS1200 and were duly impressed. They do not fit on the 650!
There is insufficient room in the little horn compartment under the front
mudguard and the only option would be to mount them externally which is (a)
unsightly and (b) exposes the horns to the weather. We carried them for 2
months around Mexico on Part 2 of the trip as useless extra weight and they were
returned to the supplier when we arrived back in the UK.
We eventually replaced the horns with louder Chrome Japanese
items from Hein Gericke, checking first that they fit in the horn cubby-hole.
They are louder but, to be honest, the mudguard seems to act as a baffle and
mutes the sound especially at speed.
I also had a recent problem with KP (May 2009) when the horn
stopped working. The circuit has the battery, horn, horn switch, horn
relay and fuse link and all of these elements checked out OK. I frustrated
the hell out of me until I checked the ground lead to the horn itself and found
this was dead. The fix was simple; just snipped off the old connector and
made up a short new ground lead with a ring tongue terminal running to the lower
yoke. This worked fine for a few weeks, then no horn again! I
figured that if the ground wire had broken the chances were that the live was
now gone at the same place. This proved to be the case.
Initially visual inspection had revealed no damage to the wiring
and I figured the break was somewhere inside the harness bundle. On closer
physical examination I found the broken wires right where the horn leads break
out of the main harness on the right hand side of the headstock. By
feeling the wire I could detect that it was broken so I peeled back the
cloth-tape insulating wrap and there were the broken wires. I spliced in 2
longer leads to repair. I figure this is another BMW design shortfall -
the wire to the horn is just a little short such that it gets worked to and fro
every time the steering moves, eventually breaking. Easy to fix but a
bugger to find as there is no visual indication of the broken wire.
Wear
and Tear:
KG had one fork leg replaced
under warranty before leaving the UK. BMW UK admitted it was a manufacturing
flaw and replaced it with no quibbling. KP blew a fork seal on the first day on
the Alaskan Highway and we replaced both seals in Anchorage.
By the end of the trip KP had
worn steering head bearings with a definite notch noticeable when the handlebars
were set straight. These were replaced by BMW in Seattle.
Both bikes had their chains &
sprocket replaced in Texas – ½ way through the trip. At the end they need
replacing again. See the section on Scottoiler above for more on chain
maintenance & lubrication.
Tyres:
The original equipment
Bridgestone Trailwings were replaced by Continental TKC 80’s for the
first leg of the trip. The Conti’s lasted just over 6,000 miles when we
replaced them in Salta in Argentina. We could have had maybe up to another
1000-miles from them but as we were headed into Bolivia & Peru, where
replacements are difficult to obtain, we decided not to take any chances and
change them early. The bikes were then changed to Bridgestone Trailwings.
My rear
tyre had to be replaced after 7000 miles. We were in Guatemala City and the
bike had a set of Metzeler Tourances fitted as a single Bridgestone was
unavailable and we were never too keen on mixed sets of tyres (this, plus it
cost only $100 for the 2 tyres – incredibly cheap!) We later kicked ourselves
that we hadn’t taken advantage of the cheap price and replaced Maggie’s at the
same time.
Both Conti’s & Bridgestones
have been excellent tyres, with no scary moments even with fully laden bikes and
in all weather conditions. Of the 2, Maggie prefers the Bridgestones, as the
bike is just a little lower than when it had new Conti knobblies fitted. The
Metzelers are very similar in appearance to the Bridgestones but not just as
good. I’m not sure what it is, but I just don’t have that 100% confidence I had
with the Bridgestones. The Tourances did last well going from Guatemala City up
to Calgary in Canada via a big zigzag across Texas & Mexico, but as they wore
more I noticed that they were picking up on deformities and overbanding on the
road a lot more that the Bridgestones, giving a few ass clinching moments. From
Calgary onwards, both bikes therefore had Trailwings.
We fitted Michelin heavy-duty
inner tubes and they are protected with Ultraseal puncture sealant. We had no
punctures during our 35,500 miles on the road so we can’t comment on whether
the Ultraseal is any good. The lack of punctures is also due to careful
tyre maintenance - checking the pressures regularly and changing tyres before
they get really worn out (once we noticed a degradation on handling due to
obvious wear on tyres, they were changed).
Other
Niggles:
Both bikes have now trashed
the stupid plastic mudguard over the rear wheel. It oscillates, especially off
road and soon starts to crack at the end of the chain guard. Maggie’s fractured
completely and we cut it off so only the chain guard part remains.
Mine was
failing in the same way so we cut it off to make a neater break.
KP suffered a fuel pump
failure in Argentina, requiring the bike to be recovered from the middle of
nowhere, but this too was replaced under warranty by BMW in Cordoba. It seems
to be another common problem due to unstressed wiring on the fuel pump itself
and a simple fix is documented on
www.f650.com.
Following a 10 second river
dunking in Peru, the digital clock on KP now goes berserk on powering up and
will not keep time. It was very distracting and I removed the clock trim
and covered the area with a piece of insulating tape to blank off the offending
display.