1 K100RT mini Odyssey Thu Mar 29, 2018 2:56 am
George_Pap
Silver member
Hello all
Its been a couple of months that i pulled a K100RT 85 from the 8 years sleep.
Headed to a -non BMW expert- engineer since there is no old K expert around in Crete Island, Greece and the BMW official Service rejected my bike as too old
So 3 months after this is the situation:
Mechanic swapped the fuel pump with another, non genuine, looks like it works ok
Swapped the battery with a new one but only 18AH that died already and i replaced it with a AGM 30AH
Injector cleaned
Old alarm system removed by an electrician
Tires replaced with Bridgestones BT45
Faulty GPI switch replaced with a used one from Motoworks.uk but worked only for a few hours (according my mechanic) so i m waiting for a replacement FOC (Great service by the way the guys at Motorworks)
The problem as soon as i got the bike from the mechanic was that after 10-15 min of driving bike was like cutting fuel off/on, revs 0-2000, no throttle response engine was shutting down. Starter on right after the shutdown, engine on but with the same erratic behaviour for few miles the off again, etc etc. Got it to the mechanic, and after weeks of research the problem solved after tuning (as he said) something like a bolt under the air filter? i guess the fuel mixture?
Went happy, thought everything ok but not..
Drove the bike back home nicely run, next morning tried to ride it again,.... kaput.
Starter working but no luck to start the engine until the 18AH battery Rested in Peace.
Charged the battery, disconnected the fuel tank, checked the cabling under the tank messed a bit with the harnesses checke grounding on the frame and..
Engine on!!!
Actually one bunch of cables was pressed between tank and upper frame bar.
Thought that that was the problem. Next day tried to start the bike again. No luck. Knew the trick. Removed the tank a bit, not disconnected the fuel lines, messed with the cables by just sliding my fingers under the tank and bike was on again!
To shorten the story, the same story was repeating for a couple of days . After leaving the bike idle for a couple of hours i had to mess the wiring a bit to get it back on.
Finally the battery broke circuity and could not charge (off bike) over 11V so i replaced it yesterday with a fresh Unibat 30AH / 600 CCA.
As soon as i replaced it i noticed that the clock was off with the battery connected.
Tried to start the bike, main switch on, kill switch on, Success! half of a turn of the starter motor was enough to get the engine on! Love the plenty of CCA!
Left the bike off overnight tried this morning, engine on again succesfully!
But the problem now is why the clock goes off as soon as i turn of the main switch???
I m affraid of what this could mean in conjunction with the previous symptoms. Is there any serious leak?
Checked the terminals connections to the battery, the ground on the engine right over the gear lever and everything was in place.
Please Help!
I feel i m so close to get it working and so far the same time....
Thank you in advance!
Its been a couple of months that i pulled a K100RT 85 from the 8 years sleep.
Headed to a -non BMW expert- engineer since there is no old K expert around in Crete Island, Greece and the BMW official Service rejected my bike as too old
So 3 months after this is the situation:
Mechanic swapped the fuel pump with another, non genuine, looks like it works ok
Swapped the battery with a new one but only 18AH that died already and i replaced it with a AGM 30AH
Injector cleaned
Old alarm system removed by an electrician
Tires replaced with Bridgestones BT45
Faulty GPI switch replaced with a used one from Motoworks.uk but worked only for a few hours (according my mechanic) so i m waiting for a replacement FOC (Great service by the way the guys at Motorworks)
The problem as soon as i got the bike from the mechanic was that after 10-15 min of driving bike was like cutting fuel off/on, revs 0-2000, no throttle response engine was shutting down. Starter on right after the shutdown, engine on but with the same erratic behaviour for few miles the off again, etc etc. Got it to the mechanic, and after weeks of research the problem solved after tuning (as he said) something like a bolt under the air filter? i guess the fuel mixture?
Went happy, thought everything ok but not..
Drove the bike back home nicely run, next morning tried to ride it again,.... kaput.
Starter working but no luck to start the engine until the 18AH battery Rested in Peace.
Charged the battery, disconnected the fuel tank, checked the cabling under the tank messed a bit with the harnesses checke grounding on the frame and..
Engine on!!!
Actually one bunch of cables was pressed between tank and upper frame bar.
Thought that that was the problem. Next day tried to start the bike again. No luck. Knew the trick. Removed the tank a bit, not disconnected the fuel lines, messed with the cables by just sliding my fingers under the tank and bike was on again!
To shorten the story, the same story was repeating for a couple of days . After leaving the bike idle for a couple of hours i had to mess the wiring a bit to get it back on.
Finally the battery broke circuity and could not charge (off bike) over 11V so i replaced it yesterday with a fresh Unibat 30AH / 600 CCA.
As soon as i replaced it i noticed that the clock was off with the battery connected.
Tried to start the bike, main switch on, kill switch on, Success! half of a turn of the starter motor was enough to get the engine on! Love the plenty of CCA!
Left the bike off overnight tried this morning, engine on again succesfully!
But the problem now is why the clock goes off as soon as i turn of the main switch???
I m affraid of what this could mean in conjunction with the previous symptoms. Is there any serious leak?
Checked the terminals connections to the battery, the ground on the engine right over the gear lever and everything was in place.
Please Help!
I feel i m so close to get it working and so far the same time....
Thank you in advance!
__________________________________________________
K100RT (Early 1985 -nonABS)