K11 Owners Group

Scott_Anderson · Posted: Fri Nov 06, 2009 12:07 am Post subject: TB hoses and clamps

I'm considering replacing the large rubber hoses between the TB assy and the injector housings.
Has anyone else replaced these, and if so what did you use for new clamps.
Both screw clamps or new 1-time band clamps.

TIA.
_________________
Ride safe.

1995 K1100LT 0302044
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
1997 K1100LT 0302488(R.I.P.)
1997 R1100RT ZC62149(sold)

tmoons · Flying Brick Rider Joined: 09 Oct 2008 Posts: 161

SugarHillCTD · Posted: Fri Nov 06, 2009 8:11 am Post subject:

Timely topic Scott.

This summer during my post-clutch replacement disaster I found that I could not get the TBs balanced (yeah, I know that should be done after the valves are checked).
One of my "boots" between the TB and the intake manifold has a crack that improved (would very briefly balance) when sprayed w/ WD-40. Looks like 4 new boots plus clamps are in order.

So I was wondering also if I could do all the reassembly with screw clamps and not use the one-time clamps.

Looks like tmoons has answered that subject- THANKS

BUT, do I order the screw clamps from BMW? I know that I need 4 #5 in the diagram but which clamps (or do I look for narrow clamps via aftermarket?)

_________________
John & Cathy

'92 K100RS4V Pearl White SOLD
'04 K1200GT
IBA Several-SS1k, BBG, 50CC NYC to S.F.

Stoked Steve · Posted: Fri Nov 06, 2009 7:31 pm Post subject:

I had this same problem last year when I pulled the boots in search of an intermittent cutoff problem that turned out to be a loose connection at the ignition amplifier. I'm embarrassed to admit that I just used zip ties to clamp these back on and they have worked just fine.

I could not find any hose clamps that were narrow enough.

I would however like to get them clamped properly, so I'll be watching this thread to see the outcome.
_________________
Steve
Virginia Beach, VA
93 K1100RS Mystic Red SOLD
12 Suzuki DL650A VStrom

Wrigsby1 · Posted: Fri Nov 06, 2009 7:39 pm Post subject:

I ordered "46mm clamps" via Motorworks in the UK. They seemed BMW or similar. The One use clamps are down as 48.5mm. The screw type "Jubilee" clamps usually have range to go on the wider (lower) end of the rubber manifold.

When you are lining up the clamp screws, watch for the initial fouling, but especially for fouling the rotating parts of the butterfly actuators so make sure you operate the throttle through its full range while you are getting them in position or you may end up fouling the butterfly set up when you go out for the 1st run, ahem!