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K not OK #669539
09/30/16 5:47 am
09/30/16 5:47 am
Joined: Oct 2008
Posts: 5,014
Gnashville
DavidP Offline OP

BritBike Forum member
DavidP  Offline OP

BritBike Forum member
Joined: Oct 2008
Posts: 5,014
Gnashville
Went out for a ride Sunday on the K100. Got about a half mile from the house, BINK! He spit and wouldn't take throttle. Nursed it into a parking lot and walked home.
Water in fuel? That's what I thought.
With fuel injection it's a PITA to drain the tank. Got about a gallon out, but no sign of water. Still won't start, battery down now. I have a trailer reserved for tomorrow to get the heavy beast home.
That's where he'll sit until the BSA is back together and running.
Perhaps God is an Englishman after all.


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
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Re: K not OK [Re: DavidP] #669548
09/30/16 7:05 am
09/30/16 7:05 am
Joined: Aug 2014
Posts: 1,534
OZ
Triless Online content
BritBike Forum member
Triless  Online Content
BritBike Forum member
Joined: Aug 2014
Posts: 1,534
OZ
Ah, well, the price of progress ! But, remember, the meister mob came off second best to the mob with sidevalve BSA's and Harleys!!

Re: K not OK [Re: DavidP] #669595
09/30/16 4:48 pm
09/30/16 4:48 pm
Joined: Oct 2008
Posts: 5,014
Gnashville
DavidP Offline OP

BritBike Forum member
DavidP  Offline OP

BritBike Forum member
Joined: Oct 2008
Posts: 5,014
Gnashville
Got it home and off the trailer with a little help. Just wish the thing had a check-engine light, I have a code reader.
The price of progress? "That which you call progress is just the desperate belief that that which falls can fall upward." Franz Werfel, "Star of the Unborn."


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
Re: K not OK [Re: DavidP] #669597
09/30/16 4:50 pm
09/30/16 4:50 pm
Joined: Oct 2008
Posts: 5,014
Gnashville
DavidP Offline OP

BritBike Forum member
DavidP  Offline OP

BritBike Forum member
Joined: Oct 2008
Posts: 5,014
Gnashville
I'm half tempted to put a Weber carb and a Bosch 019 distributor on the thing. Worked well on the last German four cylinder I owned. laughing


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
Re: K not OK [Re: DavidP] #669607
09/30/16 7:19 pm
09/30/16 7:19 pm
Joined: May 2007
Posts: 10,447
Pennsyltuckey
ricochetrider Offline

Moto Mojo
ricochetrider  Offline

Moto Mojo
Joined: May 2007
Posts: 10,447
Pennsyltuckey
HA. Sorry you're having so much trouble with this darned bike David! Since these are virtually bullet proof machines, in theory, once you get it ironed out you should be good for a few hundred thousand kilometers. If it has sat for like ever tho, it may take quite a bit of energy to bring the old dog up to its full potential.


"It is no measure of health, to be well adjusted to a profoundly sick society."

Re: K not OK [Re: DavidP] #669632
09/30/16 11:05 pm
09/30/16 11:05 pm
Joined: May 2007
Posts: 2,022
Christchurch NZ
R Moulding Offline
BritBike Forum member
R Moulding  Offline
BritBike Forum member
Joined: May 2007
Posts: 2,022
Christchurch NZ

Check engine light would only help so much. Start with obvious, make sure you have fuel pressure. Remove a fuel line and crank the motor, should pump fuel out while cranking. If not most likely fuel pump or relay. If you get fuel check for spark, use a spare plug grounded to the head and crank the motor. If you have no spark you first need to confirm if the injectors are being energised. Use a 12 volt test lamp in the two pin plug on the injector, it should flash as the motor cranks. If you have no spark and no injection then most likely to be something like a crank sensor (depending on age of the system). If you have injection and no spark I would be looking at coil or amplifier.

Just some ideas
Rod


So remember, when you're feeling very small and insecure,
How amazingly unlikely is your birth;
And pray that there's intelligent life somewhere out in space,
'Cause there's bugger all down here on Earth!
Re: K not OK [Re: DavidP] #669642
10/01/16 1:33 am
10/01/16 1:33 am
Joined: Aug 2001
Posts: 2,404
SLO County, CA
D.Bachtel Offline
BritBike Forum member
D.Bachtel  Offline
BritBike Forum member
Joined: Aug 2001
Posts: 2,404
SLO County, CA
It ran fine and then it just stopped ?

Off with the tank and assorted plastic to service all the multipoint connectors.
ECU, PCM, relays, bases... every stinking terminal you can pull apart.
Careful with those connectors, some are tricky and you could break something just taking them apart!
Use deox or your choice of contact cleaner with toothpicks, Q-tips.
Rinse and repeat. Whatever it takes to clean away the green. Check with illuminated magnification.

Smear some Vaseline on the mating surfaces of the connectors before snapping them back together.
Not the contact points just the outers, next time it will be easier to service and will help keep out corrosion.




Don in Nipomo

Re: K not OK [Re: DavidP] #669659
10/01/16 7:37 am
10/01/16 7:37 am
Joined: Oct 2006
Posts: 2,660
Elburn, Ill. USA
I
Irish Swede Offline
BritBike Forum member
Irish Swede  Offline
BritBike Forum member
I
Joined: Oct 2006
Posts: 2,660
Elburn, Ill. USA
BMW K100;

"Hitler's Revenge?"

Re: K not OK [Re: DavidP] #669672
10/01/16 11:16 am
10/01/16 11:16 am
Joined: Oct 2006
Posts: 781
in my house
K
KADUTZ Offline
BritBike Forum member
KADUTZ  Offline
BritBike Forum member
K
Joined: Oct 2006
Posts: 781
in my house
Dang sorry about the bad luck. Very lonely feeling coasting to the side of the road.

Reading about this new fancy F.I. and E.I stuff sure make me like my old clapped out Amals & points on my 78 T140V


K


1970 T120RT
1978 T140V
Re: K not OK [Re: KADUTZ] #669768
10/02/16 11:21 am
10/02/16 11:21 am
Joined: Oct 2008
Posts: 1,680
Canada
L
LarryLebel Offline
BritBike Forum member
LarryLebel  Offline
BritBike Forum member
L
Joined: Oct 2008
Posts: 1,680
Canada
I've had 'help' getting my B44R back home 4 or 5 times mostly because of broken wires, but the master chain link was once bizarrely knocked off after coming into contact with the edge of my chain guard and I had one flat tire. I attribute most of the problems to vibration. After the chain link incident I flipped it so the spring clip was on the inside.


Re: K not OK [Re: DavidP] #669801
10/02/16 6:22 pm
10/02/16 6:22 pm
Joined: Aug 2005
Posts: 1,393
melbourne florida
B
bodine031 Offline
BritBike Forum member
bodine031  Offline
BritBike Forum member
B
Joined: Aug 2005
Posts: 1,393
melbourne florida
keep it simple, charge the battery, turn on ign don't try and start it, can you hear the pump do a 3 sec. prime. Then I would be spraying start fluid in the airbox while turning over the engine. Starts, fuel pump pooped out, doesn't then its ck, for sparkle and injector pulse. Its tough when you can't check fuel pressure with a gauge.

Re: K not OK [Re: DavidP] #669804
10/02/16 6:57 pm
10/02/16 6:57 pm
Joined: Aug 2001
Posts: 2,404
SLO County, CA
D.Bachtel Offline
BritBike Forum member
D.Bachtel  Offline
BritBike Forum member
Joined: Aug 2001
Posts: 2,404
SLO County, CA
Motobrick is back online...

Surely we can sort this out.
I understand your frustration but the bike is fairly simple, just advanced for its age.

Don in Nipomo

Re: K not OK [Re: D.Bachtel] #669822
10/02/16 9:53 pm
10/02/16 9:53 pm
Joined: Oct 2008
Posts: 5,014
Gnashville
DavidP Offline OP

BritBike Forum member
DavidP  Offline OP

BritBike Forum member
Joined: Oct 2008
Posts: 5,014
Gnashville
Originally Posted By bodine031
keep it simple, charge the battery, turn on ign don't try and start it, can you hear the pump do a 3 sec. prime. Then I would be spraying start fluid in the airbox while turning over the engine. Starts, fuel pump pooped out, doesn't then its ck, for sparkle and injector pulse. Its tough when you can't check fuel pressure with a gauge.

Yes, it does spurt fuel just after turned on, flows well when cranked. But I have no way to test pressure.
Plugs are wet, but both coils produce spark.

Originally Posted By D.Bachtel
Motobrick is back online...

Surely we can sort this out.
I understand your frustration but the bike is fairly simple, just advanced for its age.

Yeah, I posted there right after it quit. I wondered why I kept getting an error message for a couple of days when I went back.
The last response I got from there suggested that it might be the temperature sensor gone bad making the thing run too rich. It tries to start, just won't stay running or take throttle. Makes sense, when it happened it did run kinda like a bike with the choke on.
I have new intake O rings and rubbers, I'll have the plastic off soon enough.
No time to mess with it now, I have an A65 to put back together.

Larry, if this bike were a B44 I could have pushed it home.


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
Re: K not OK [Re: DavidP] #670267
10/06/16 1:48 pm
10/06/16 1:48 pm
Joined: Oct 2008
Posts: 1,680
Canada
L
LarryLebel Offline
BritBike Forum member
LarryLebel  Offline
BritBike Forum member
L
Joined: Oct 2008
Posts: 1,680
Canada
It happened again ... dead in the water down the hill from my place with the prospect of another expensive tow or a push up about a 300' hill not very appealing. I pushed the horn button this time and sure enough there was no beep, so another broken wire on the horn, the same problem which lead to the picture I posted. Why the main power wire is routed via the horn is beyond me. The good thing is the wire is exposed under the gas tank and I managed to affect a temporary street repair. I soldered the to two wires onto the connector properly this time.

Re: K not OK [Re: DavidP] #670752
10/11/16 11:26 pm
10/11/16 11:26 pm
Joined: Oct 2003
Posts: 11,211
North Georgia, USA
RF Whatley Offline
BritBike Forum member
RF Whatley  Offline
BritBike Forum member
Joined: Oct 2003
Posts: 11,211
North Georgia, USA
BMW airheads with electronic ignitions have a very bad time with loss of spark. The issue is the connector joining the wires from the "points plate" to the wires from the black box. It's exactly similar to the issues with Boyer ignitions on Brit bikes. The hall effect coils only generate about 3V, so the electrical connections to trigger the ignition can't withstand any losses.

Novices end up replacing the coil plate, which is costly. But those who understand the issue simply remove the connector and solder the 2 wires directly together, thus making a perfect connection that is immune to water and corrosion.

Hope this helps you.


Don't hide 'em, Ride 'em !!

RF Whatley
Cornelia, GA

"Shop Boy" at Rodi British Bikes
Re: K not OK [Re: DavidP] #671004
10/14/16 4:19 pm
10/14/16 4:19 pm
Joined: Oct 2008
Posts: 5,014
Gnashville
DavidP Offline OP

BritBike Forum member
DavidP  Offline OP

BritBike Forum member
Joined: Oct 2008
Posts: 5,014
Gnashville
I came home today and saw this.


Hope she's praying for me to find the problem. laughing


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
Re: K not OK [Re: DavidP] #671008
10/14/16 5:09 pm
10/14/16 5:09 pm
Joined: Jul 2001
Posts: 12,830
Central Virginia
Lannis Online content

Life member
Lannis  Online Content

Life member
Joined: Jul 2001
Posts: 12,830
Central Virginia
He's praying that you'll trade in that new ABS-equipped bike for an old Brit nail ....

Lannis


I stopped believing for a little while this morning. Journey is really going to be upset.
Re: K not OK [Re: DavidP] #671013
10/14/16 6:41 pm
10/14/16 6:41 pm
Joined: Oct 2008
Posts: 5,014
Gnashville
DavidP Offline OP

BritBike Forum member
DavidP  Offline OP

BritBike Forum member
Joined: Oct 2008
Posts: 5,014
Gnashville
Funny, I thought he was a Lutheran. An Anglican mantis would've had a fancy vestment.


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
Re: K not OK [Re: DavidP] #671043
10/15/16 12:21 am
10/15/16 12:21 am
Joined: Oct 2008
Posts: 5,014
Gnashville
DavidP Offline OP

BritBike Forum member
DavidP  Offline OP

BritBike Forum member
Joined: Oct 2008
Posts: 5,014
Gnashville
Great, 1/4 mile from home and the check-engine light comes on in my car.
I'm done with these computer-controlled contraptions. Think I'll trade it all in for a CB350 and an old Dodge Dart.


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"

Moderated by  Alan_nc, Graham Ham 


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