R1100R Throttle Body Sync

[BBKME]

Hi. I ride a '95 R1100R and recently had the throttle bodies sync'd...for the second time this season. There is about 6,000 miles between the two services. Is this normal? I'm not sure if the first wasn't done properly or if this is usual behavior for the Boxers. I've owned 2 K bikes but this is my first R bike. So far the R isn't as care free as the K. I gotta say I'm missing the K. :dunno

[PGlaves]

Hi. I ride a '95 R1100R and recently had the throttle bodies sync'd...for the second time this season. There is about 6,000 miles between the two services. Is this normal? I'm not sure if the first wasn't done properly or if this is usual behavior for the Boxers. I've owned 2 K bikes but this is my first R bike. So far the R isn't as care free as the K. I gotta say I'm missing the K. :dunno

The process of "synching" the throttle bodies is as much one of attaching the hoses and checking the synchronization as it is one of actually finding they need to be adjusted and then adjusting them.

Checking the synchronization is part of a decent 6,000 miles service and in my opinion the technician would be shortchanging the owner if he/she didn't at least hook up and check.

Going out of synch will be the first sign of deteriorating, stretching, cables. They don't actually stretch. They start to fray and unwind. That makes them longer. So unless they are elongating at the same rate you will detect this impending problem by checking synchronization.

I check the synch on our bikes more frequently than every 6,000 miles usually.

[bikerfish1100]

when i have found my bike going out of synch more frequently than normal (every 5K is about normal for me, but I'm kinda picky about it), a good cleaning of the Big Brass Screws (BBS) resolved the problem pretty nicely. and no, that cleaning would not typically be done during a TBS.

[j-budimlya]

second oppinion, I have a '95 r1100r and it requires a new throttle cable(there is only one on this bike) about every 20k in miles....and probably every 3-4 years is not ridden much.....if you have an old cable, put on a new one....and learn how to sync for yourself....pretty east to do....btw, the new cable needs to be sync'd after a few hundred miles....the new cable will settle in and then be good for some time....

[queretaro]

when i have found my bike going out of synch more frequently than normal (every 5K is about normal for me, but I'm kinda picky about it), a good cleaning of the Big Brass Screws (BBS) resolved the problem pretty nicely. and no, that cleaning would not typically be done during a TBS.

+1 for cleaning the big brass screws. I did and was very surprised by how smoothly my 95 r1100r (44,000 miles) idles, and responds to the throttle at low speeds. And this is AFTER I adjusted the valves, installed new spark plugs (Autolite), and balanced the throttle bodies.
regards,
Mark

[j-budimlya]

+1 for cleaning the big brass screws. I did and was very surprised by how smoothly my 95 r1100r (44,000 miles) idles, and responds to the throttle at low speeds. And this is AFTER I adjusted the valves, installed new spark plugs (Autolite), and balanced the throttle bodies.
regards,
Mark

For you folks with gunked up brass screws, make sure that your throttle bodies are fully closing with at least a bit of cable slack when you release the throttle....I just tuned up a strangers bike this weekend at our rally, he was a vendor and volunteered his bike 'cause it was runing poorly, and he too had over tightened the cable when removing slack and his TB's where not closing....this allows blowback to clog the TB's and it coats the brass screws.....

A little tuneup magic and his bike was running much better....

[rado360]

For you folks with gunked up brass screws, make sure that your throttle bodies are fully closing with at least a bit of cable slack when you release the throttle....I just tuned up a strangers bike this weekend at our rally, he was a vendor and volunteered his bike 'cause it was runing poorly, and he too had over tightened the cable when removing slack and his TB's where not closing....this allows blowback to clog the TB's and it coats the brass screws.....

A little tuneup magic and his bike was running much better....

I was thinking of posting what I found with my bike(97 rt w/85k) and this post reminded me----I found the left throttle cable a little tight,not enough slack and chattering a little at idle,so I gave it some slack and re-synced the throttles,the surging that had started went away completly and the engine is much smoother through the whole rev range.I slackened it to where I could see the play being just taken up before the throttle plate wheel started to move when I turned the grip,so I felt sure the throttle came all the way back to the stop with a little slack.

[j-budimlya]

I learned this one myself by first messing up and then figuring out why the bike would not run right.......the critical first step in a TB sync is to put slack in the throttle cables......but, it is so tempting to skip this step and go straight to the adjustment .....and sometimes this is OK.....but from my expereince, it may bite you to do the shortcut.....

[will3hawks]

All the previous advice is good, however you must bring the bike to operating temperature prior to the sync or it will be a waste of time.

[BBKME]

What's up, Will. Still riding my old K11RS or did you find a trade? Hope all is well with you. :blah