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I just found your post for refurbish for K1200GT.
I have had my 1200GT -06 since brand new and some work have been done.
Clutch 200 EUR
ABS rebuild 1 000 EUR
Coil used x1 spare
Suction rubber x4

I'm missing one thing when you do a lot of work on the bike. I hade very strange engine behavior a couple of years ago. Sometimes weak in low rev and when speeding up everything works just fine. Reading a lot of forums and everyone pointed me in to change coil. One cylinder was cooler.

But, it was the suction rubbers that started to leak. Several suction rubbers had more coming leaks. So my tip is to buy 4 new suction rubber as the bike have some years now.
 

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2014 K1300S, 2007 K1200GT
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Discussion Starter · #63 ·
OK, So I am not done yet. Went for a long ride yesterday to run injector cleaner through it and see how it ran. After a 165 miles on a trip there were no fault codes (with the exception of the brake pads wear indicator that is now Coded to not display). However, there are two more problems need to address:

1. Hesitation in throttle response
2. Second gear slips in and out of engagement under heavy acceleration.

Hypothesis:

1. The fuel pump is clogged or pumping is weak.

2. The 2nd gear shifting fork is worn - needs replacement (hopefully the engagement lugs aren't peened.

BTW, the Barnett clutch is so much smoother than OEM. I don't feel that shutter as I do in my K1300S during engagement.

Now, before anyone says "Booster Plug", no I am not going to install that and that won't salve the hesitation problem. I checked the lines going to the canister prior to reassemble and they all flowed perfectly....so it isn't the tank having vent suction issues. In the past, I had a F800GT that had a flat spot in the power band due to fuel mapping, so I know the feeling of it. I also had a clogged charcoal canister in my K1300S and know that feeling also. This GT had hesitation and stalling as I gave it more throttle like it was being starved of gas and running too thin as the throttle body opened, but would sometimes catch up as the RPMs changed. At cruising speed it would maintain no problem. So I am approving this as it is a fuel pump/filter issue. Remember the bike has almost 55K miles so that is more likely the issue.

Now, time to take the clutch apart again. :cautious:
 

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2014 K1300S, 2007 K1200GT
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60 Posts
Discussion Starter · #65 ·
Upon further research, I am thinking the O2 sensor might be in need of replacing to solve my stumbling and hesitation problems.
 

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2014 K1300S, 2007 K1200GT
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Discussion Starter · #68 ·
Let’s update my cost invested in this bike so far.


Right Controls (used) $92.42
Left Controls (used) $178.95
Clutch $169.43
Tanks Gaskets $21.77
Clutch Cover Bolts $28.49
Fuel Sensor $130.20
ABS Rebuild $280.52
Steering Dampener $48.13
Screw, Wheel Carrier $2.32
Clutch Hose $45.33
Grommets $7.66
Valve Cover Gaskets $114.75
Final Drive Gasket $1.88
Screw, Spoiler $2.38
Filler Tube $88.34
Tail Switch $27.00
Rear Brake Pin Kit $25.53
Front Brake Pin Kit $23.54
Fuel Pump QD Fittings $47.87
Front ESA Strut (used) $69.53
Heated Seat Wire $36.07
Luggage Clamps $10.00
Seat Covers $168.64
Badge, Fairing $28.13
Rear Boot $98.29
Shifting Fork $261.55

Total $2,008.72

Plus Bike (out the Door tax+Title) $1,733

Total: $3,741.72

We are still below my planned budget.
 

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2014 K1300S, 2007 K1200GT
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Discussion Starter · #69 ·
I am still waiting for the shifting fork, but decided to just replace the fuel pump with a Kemso aftermarket fuel pump and a used O2 sensor. That should solve the throttle hesitation issue. Overall it cost $60 in total. I think the shifting fork will arrive tomorrow.

This project is taking longer than I thought!!!
 

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2014 K1300S, 2007 K1200GT
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Discussion Starter · #70 ·
Finally the shifting fork has arrived and all the parts installed.
Automotive tire Motor vehicle Automotive design Bumper Automotive exterior


Now, I guess after the clutch pack sitting waiting for the part the clutch won't release. I will have to fool with it more tomorrow.

UUUHHHGGGG! WHY IS THIS ALL SO DIFFICULT. I am loosing faith in BMW bikes. :mad:
 

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2014 K1300S, 2007 K1200GT
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Discussion Starter · #72 ·
Transmission fixed! My oil pump lugs were not engaged in the clutch basket. That was the issue.

Hesitation is still an issue. Seems like the throttle position sensor or airbag is the issue. I think I am done screwwing with this bike. I am about to call this a "F" for a fun project.
 

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Discussion Starter · #73 ·
on second bottle of fuel injector cleaner. I went a little heaver with a different bottle of injector cleaner. First was Techron, and current is Seafoam. I was a bit aggressive on the throttle after filling up the second tank and brought her up to redline to get the injectors really pumping. Lets see how it does over the next few days.
 
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