K11 Owners Group

Ernie-NH · Posted: Thu Jul 07, 2011 4:44 pm Post subject:

Hi jimmyd....

If its any consolation to you, I have a "stutter" problem as well and CANNOT find it. For me however, it only occurs when I hit an irregularity in the road surface such as a "bridge expansion joint" or a 'man hole cover' or here in New England leftover "frost heaves"... The stutter I have causes mine to momentarily decelerate which pitches me forward, and then just as quickly it resumes normal speed (as do I !)... As you can imagine, this is not only VERY annoying but also makes riding a problem... I have searched for "Bad grounds", "Loose plug wires", "Corroded connectors", "Battery terminals as well as battery voltage"....EVERYWHERE thus far without success ! IF you find your problem please let us know so that we can confirm or eliminate the same from my bike.. Thanks

BTW.... please add more data about yourself ( location ) and your bike ( model, year, accesories etc ) and place this in your sig line. Without knowing what you have, it is very hard to help you.

Best regards.........// Ernie in NH
_________________
AMA,, American Deaf Bikers
Airhead Beemers Club
'11 G650gs
'95 K1100LT
'76 R100/7

Scott_Anderson · Posted: Thu Jul 07, 2011 7:45 pm Post subject: Re: TPS

Jimmyd · Posted: Thu Jul 07, 2011 10:19 pm Post subject: Re: TPS

Scott_Anderson · Posted: Thu Jul 07, 2011 11:18 pm Post subject:

Well, there are some schematics out there, not sure I would call them "full" or not.
This is probably the best link I can direct you to for color diagrams that I'm aware of.

http://k-technik.pytalhost.com/index.php?option=com_content&task=section&id=7&Itemid=53

The author is German so you will need to open the link with Google Chrome or some other form of translation software unless you can read German.

My '95 is buried in the back of the garage or I would be able to take some TPS readings of it as well.
_________________
Ride safe.

1997 K1100LT 0302488
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1995 K1100LT 0302044(R.I.P.)
1997 R1100RT ZC62149(sold)

Jimmyd · Posted: Thu Jul 07, 2011 11:30 pm Post subject: TPS

Jimmyd · Posted: Thu Jul 07, 2011 11:35 pm Post subject:

merlin geikie · Posted: Fri Jul 08, 2011 7:31 am Post subject:

Jimmyd reports;

Thedodge · Posted: Fri Jul 08, 2011 4:53 pm Post subject: Plug life.

Scott_Anderson · Posted: Fri Jul 08, 2011 7:12 pm Post subject: Re: Plug life.

Ernie-NH · Posted: Sat Jul 09, 2011 9:14 am Post subject:

Good morning Merlin....

Re: ""I think a cable gauge upgrade is the fix with the bad ground in older K11s. ""..... what gauge did you upgrade to ?? The Battery to Engine ground on my bike appears to be appx. AWG 8 (stranded) with soldered end terminals. Plus both battery end as well as engine end show no corrosion, are secure and torqued down heavily. The next set of "grounds" run from the engine body ( close to the primary engine ground ) over to the "coil array". That ground as well as the wire leads shown no corrosion, are tight, and the insulation appears to be complete and uncracked. I would like to check the TPS, but the unit is sealed, and I dont seem to be able to get to the pins ( 1 and 4 ) when connected in order to measure the voltage. Scott has done it, but I cant imagine how !

I have also checked for a 'cracked' porcelain on one or more spark plugs, but I am going to check again, more thoroughly this time. I have gone thru the harness from end to end and each connector as well. The is so "eff-enn" frustrating since it ONLY happens when hitting slight jolts etc.. Guess one could say, "..just ride on the smooth parts, dummy !! "

Best regards "down under", and if you do have an AWG "upgrade" or equivalent recommendation please let me know.

Ernie in NH
_________________
AMA,, American Deaf Bikers
Airhead Beemers Club
'11 G650gs
'95 K1100LT
'76 R100/7

Scott_Anderson · Posted: Sat Jul 09, 2011 10:42 am Post subject:

Scott_Anderson · Posted: Sat Jul 09, 2011 11:40 am Post subject:

OK, here we go.
Started here:

Disconnected connector and slide the rubber boot back off of the connector.

Small aligator clips work best, but I only have the medium sized ones here at home.

Then just plug the connector back into the tps and take your readings. Adjust if needed.

BTW, this bike also read .000 when plug was disconnected and power on.

When you are done, just remove the clips and put the boot back into place and reconnect it.
Id suggest a little dielectric grease or some silicone grease just to help keep out any moisture from the connector.
_________________
Ride safe.

1997 K1100LT 0302488
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1995 K1100LT 0302044(R.I.P.)
1997 R1100RT ZC62149(sold)

Jimmyd · Posted: Sat Jul 09, 2011 1:32 pm Post subject:

Ernie-NH · Posted: Sat Jul 09, 2011 1:51 pm Post subject:

Hi Scott....

Thanks.... I didnt pull the boot back either.. for some reason I thought it was a molded assembly. Now... to the VOM... to the bike...!

Very best regards..........// Ernie in NH

BTW... you gonna bring that HD, or one just like it, to HM-V next May ??
_________________
AMA,, American Deaf Bikers
Airhead Beemers Club
'11 G650gs
'95 K1100LT
'76 R100/7

Jimmyd · Posted: Sat Jul 09, 2011 2:24 pm Post subject: Stuttering/Missing

Scott_Anderson · Posted: Sat Jul 09, 2011 2:48 pm Post subject:

Ernie-NH · Posted: Sun Jul 10, 2011 2:30 pm Post subject:

Hello all....

First.... THANKS to all for the many many "suggestions" and "how to's" relative to solving my "jolt/stumble" problem. I now KNOW that my wiring is sound, every connector has been 'de-oxed', every 'ground' is clean, tight, and secure, the TPS is functioning as it should, throttle cables/twist grip mechanism OK, Injector caps OK, fuel pump and filter OK, fuel delivery lines OK..... etc etc...

I have just come back from a short 50 mile 'stumble free' ride and can report that when removing the spark plugs, I found a spiral ring lodged in the well of plug #4.. It seems this ring did not allow the "kluge-y" BMW metal plug cap to seat fully and apparently would 'bobble' and break contact whenever the bike experienced a jolt. Since removing this ring, and noting that none of the other metal caps have this ring, the bike now runs flawlessly once again !!... in German we say "....Glück im Unglucke" because this fault caused me to go through EVERYTHING, thus doing maintenance and inspection that I might not have otherwise done, and NOW I'm certain that the things I mentioned will now be less prone to failure in the near future...ie: " good luck as a result of bad luck !"

So once again THANKS to all who stepped up and offered their suggestions... I hope that JimmyD will find his problem shortly as well...

Very best regards...........// Ernie in NH
_________________
AMA,, American Deaf Bikers
Airhead Beemers Club
'11 G650gs
'95 K1100LT
'76 R100/7

Scott_Anderson · Posted: Sun Jul 10, 2011 3:39 pm Post subject:

The factory caps do have a ring on the plug end. It's possible that yours came off of the cap.
_________________
Ride safe.

1997 K1100LT 0302488
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1995 K1100LT 0302044(R.I.P.)
1997 R1100RT ZC62149(sold)

Ernie-NH · Posted: Sun Jul 10, 2011 4:52 pm Post subject:

Hi Scott....

I switched to NGK caps on my Airhead, and have NGK caps on my old Virago as well... What do you think about changing out these OEM BMW metal caps ?? They seem drastically 'over designed' and not 'space efficient'. I noted that none of the caps had this spiral ring, so I'm wondering if they simply fall off with use ??

Best regards...........// Ernie in NH
_________________
AMA,, American Deaf Bikers
Airhead Beemers Club
'11 G650gs
'95 K1100LT
'76 R100/7

Scott_Anderson · Posted: Sun Jul 10, 2011 5:53 pm Post subject:

I personallty have switched to Realm wire sets on both bikes, so I'm not using the factory caps/wires anymore.
I think from age alone I'd be getting rid of original wires anyway. I've noticed a lot of owners replacing fuel lines and vac lines and other rubber bits due to age, well plug wires are no different, they age as well.
_________________
Ride safe.

1997 K1100LT 0302488
2017 FLHTK Ultra Limited
Garmin StreetPilot 2820
Garmin Zumo 550
Garmin Zumo XT
"One who does not ask questions is ashamed to learn" Danish proverb
1995 K1100LT 0302044(R.I.P.)
1997 R1100RT ZC62149(sold)