x challenge problem in Siberia
 

Can anyone help?

Please see post 139 at
http://www.horizonsunlimited.com/hub...-10#post431758

Just finished the western BAM road and have a poorly bike.

Any advice gratefully received :-)

Chris, not sure, but pls look at this thread:

2007 BMW XChallenge - Engine keeps quitting - ADVrider

Not quite the same problem, but hopefully something similar; I would guess the idle actuator (Post #3 in link), but maybe not...

I've also alerted Colebatch, hopefully he'll be along before morning.

Judging from the symptoms, I doubt this will work, but you've got nothing to lose--try a throttle reset:

--key off
--key on
--throttle wide open
--throttle full close
--throttle wide open
--throttle full close
--key off
--key on
--start engine with no throttle
--allow engine to find idle without touching throttle
--once it settles into an idle, key off
--you're done*

*but if this simple fix solves the problem, you owe me a beer or two of my choosing!!

Sounds like a fuelling problem to me, have you attempted to clean the fuel injector? If you have a slime type pump and some carb cleaner you could try to blow through the injector when it's removed. We had a similar problem with a 690, had to clean the injector every 100kms but became quite quick at doing it. Eventually it sorted itself out until we got home and changed it.

it does sound like fuelling ... fuel filter would be my first guess (along with injector mentioned above). You may have picked up some crap in the fuel at Yuktali? Did you refuel from old drums? Felix did you get the dregs of any drum?

Either try and blow fuel through it backwards and see if a ton of black crap comes out, or maybe better ... just remove it altogether, and stick a car filter (for FI engines) externally (the filter does not need to be located INSIDE the fuel tank as it is now) chopped into the high pressure fuel line, before the injector. There are plenty of auto parts shops where you can buy LADA FI fuel filters and FI fuel line.

Max at the Tynda Kamaz dealer might be a good place to try to suggest mechanics to help.

Open the top of the fuel tank (under the seat) ... hammer and screwdriver tapping on the lugs will slowly rotate and loosen it. Metal fuel filter is in there, also check the gauze pre filter at the bottom of the assembly.

Fuel pump power
 

Another possible fault can be the electrical connection to the fuel pump.

Check where the electrical wires plug into the large round fuel tank access hole mentioned in the post above. There are 4 wires in a single plug. The wire on the left most side if the bike is the power wire for the fuel pump. It has a bad habit of shorting out at the connection into the fuel tank. Open the connection and check if that connection looks burnt, stunted, blackened or anything like that.

If yes, you will need to get it repaired. All sorts of ways you can do that. Revert for suggestions if that proves necessary.

update
 

Think we have fixed it. Following chris last night i could smell unburnt fuel when the motor was dying. Assumed not a fuelling issue and suspected faulty plugs or coil sticks. 80 grade fuel gives plugs more of a hard time and runs hotter too.

Whipped out plugs this morning and electrode gap way to large. Fitted new ones and problem cured we hope. Chris done 30km trying to replicate fault and bike has been perfect.

Heading out of tynda to yakutsk tomorrow.

Thanks for all your suggestions.

Felix

yuktali fuel
 

Walter

We got pump fuel in yuktali. You have to go and see the boss in the rail control centre. Smile sweetly at his secretary;) and hey presto. 30 litres of fuel. And they would not take any money for it either.

So when is chris going to give us a comparison of Transalp vs XC on the BAM Road ... dont know anyone who has ridden two different bikes on that road!

And when are we going to see pics of the reason Phil stayed behind? :)

The rugged big kind country boy looks work with the girls there too eh?

Another reason why Felix recons the plugs might have been the culprits is his inside knowledge that the plugs may have been in the bike for at least 23 k km.

If only Phil could stay on top of his current steed for 23 k km of Adventure Motorcycling...


As far as comparisons go twix mk 1 trannie and mk 2, Mk2 might shave it 51 to 49..... or more like it, night and day. :scooter:

Ps. Many thanks to those whose took the time to reply with such well thought through replies. Much appreciated

An aside:. Also bought a nearly new Shinko mx rear tyre from a local biker today. So, the bike is hopefully fit for the final push to Magadan.

Glad to see you made it Chris, I was starting to think you were the destroyer of bike! :oops2:

Good luck with the trip up north!

Mark