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Discussion Starter · #1 · (Edited)
Hi All

I know this has been asked before and i have searched the forum without much luck to answer my question so here we go please be kind to me :)

Im new to the forum and new to the RT seen so im hoping its normal what im about to ask.

First a but of history on the bike.

R1200RT build 12/07 Silver 66000kms

I brought it from a motorcycle store about two weeks ago over the phone trusting the salesman, he told me the bike was serviced by them and was upto date with all services.

It was owned by a older guy and traded in with 66000kms on it for a new 800cc bmw as the bike was getting to large for him to handle.

its like new to look at and not one oil leak in site everything works great apart from the high beam switch as its a bit sticky.

But anyway i have this problem that i would like some help with please.

At 3000rpm i have a engine vibration i know its engine as i don't a number of tests.

Ive brought the bike up to 100kmh around 3000rpm pulled the clutch in and the bikes so smooth i had to check it was still going.

If it was a car i would say the flywheel was about to come loose but its not that.

I've also free reved the engine on the center stand and still has the same vibration.

I have checked coils they are in working order plugs are next on the test bench.

But im wondering if anyone else has had this same problem or if its just me as i understand the 1200rt's do have a bit of vibration but is this to much.

Regards
B
Hope someone can answer my question :)
 

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I know you said the vibration was coming from the engine but .....
Can you feel the vibration through the handlebars, footpegs and seat or just the handlebars. The reason I ask is that i had a vibration problem through the handlebars at 3000 rpm - so much so that my fingers went numb - and it turned out to be the front tyre. The tyre was in the last 20% of it's life but not close to the wear bars. Replaced the tyre, problem solved.
Just a thought.

Ian
 

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Discussion Starter · #3 ·
Yeah thanks for he reply

I've had new tyres fitted as I didn't like the old ones and have only put about 300 kms on them.
It was also their before. :(
When the bikes rolling with the clutch pulled in so neutral its smooth as, that smooth that I have to look at the revs to see if it's till going
So not sure what it is
 

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Welcome to the site Bushy and congrats on the new RT!

3K is a bit low in the RPM range for an RT, so that might be part of it. These bikes are happy at 3800-4800 while cruising.

That said I had a similar vibration at 4500-5000 and 85MPH for awhile and synching the throttle bodies smoothed that out completely. Now it is smooth through the whole RPM range and I was quite surprised to look down and find myself rolling at 110 yesterday smooth as silk!
 

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Discussion Starter · #5 ·
Hi and thanks for the reply.
I was thinking about getting the valve clearence and plugs checked I wasn't aware the throttle bodies could be a problem. How often do they need to be done ?
 

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Hi and thanks for the reply.
I was thinking about getting the valve clearence and plugs checked I wasn't aware the throttle bodies could be a problem. How often do they need to be done ?
I think that the TB could very well be part of the problems. Do the valve clearance first, and then the TB synch. The latter needs to be done at 12k miles interval, and the valve clearance at 6k miles interval. See if that doesn't fix your problem.

BTW, as mentioned in the other post, 3k is the low limit of the rpm range that the RT prefers. When riding my '07 RT, I tend to keep the rpm at 3k - 4k, while cruising gently on backroads, and if I feel a little frisky, then the rpm will be in the upper 3k and higher.
 
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BTW, as mentioned in the other post, 3k is the low limit of the rpm range that the RT prefers. When riding my '07 RT, I tend to keep the rpm at 3k - 4k, while cruising gently on backroads, and if I feel a little frisky, then the rpm will be in the upper 3k and higher.
+1

100 km/h is fifth gear territory. I might ride that speed in sixth, but only on a level or downhill straight road with no other traffic. I had a tendency to ride with minimum revs until I realized it felt like jogging in work boots. The slightly higher revs seem to burn fuel more efficiently, improving fuel economy by about 3-5%.

Do check your valve clearances and throttle sync as it does make a difference.
 

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Good tune-up - TB syncs, valve adj., new plugs would probably help some but with that mileage on it, I'd look at replacing the Alt belt. Belt is about $20, easy to change yourself.

Boneyard has them.

Change mine normally at @ 45/50K miles. Just did my third on the 07 RT because one was a warranty replacement at about 25K
 

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Maybe I read your post wrong. You said when you run the rpm's up to 3k and pull the clutch in the motor is smooth as silk?
If I read that correctly it means the vibration is either coming from the gear box or clutch. So my next question would be is the vibration present with the bike in neutral and the clutch NOT pulled in? If the vibration is present than the vibration is from the clutch. If this is the case I'd say forget about it and go ride.
 

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Discussion Starter · #10 ·
Thanks guys

strange you talk about alternator belt i thought i herd the belt make a noise after i washed it yesterday, but couldn't work out how i would of gotten water on it maybe its time for a new one

For peace of mind it worth getting it all checked as how much do you trust a sales man.

I actually have a story about that too but that might be another post after i collect the parts they are replacing free of charge,they told me the bike was in 100% good mechanical condition and lets just say it wasn't.

Nothing bad mind you but after being told it was a good bike and having to replace parts soon as i received it didn't go down to well in my book
 

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Discussion Starter · #11 ·
Maybe I read your post wrong. You said when you run the rpm's up to 3k and pull the clutch in the motor is smooth as silk?
If I read that correctly it means the vibration is either coming from the gear box or clutch. So my next question would be is the vibration present with the bike in neutral and the clutch NOT pulled in? If the vibration is present than the vibration is from the clutch. If this is the case I'd say forget about it and go ride.
Are you saying this is normal with clutch engaged. I haven't tried to free rev the engine with the clutch disengaged.
 

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Unfortunately this seems to be the case too often. My 05 R1200RT was supposedly "perfect" when I went to look at it (6 hour drive). It was far from that. Dirty, no recent maintenance...but it only had 7800 miles so I bit the bullet and am glad I did. I replaced all the fluids, alternator belt, spark plugs, air filter, adjusted the valves, etc. Bike is like brand new and rinds perfect. Was worth the initial investment to make everything new and right as I now have a great running bike that I love to ride.
 

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Discussion Starter · #13 ·
Maybe I read your post wrong. You said when you run the rpm's up to 3k and pull the clutch in the motor is smooth as silk?
If I read that correctly it means the vibration is either coming from the gear box or clutch. So my next question would be is the vibration present with the bike in neutral and the clutch NOT pulled in? If the vibration is present than the vibration is from the clutch. If this is the case I'd say forget about it and go ride.
OK well i just went out a ran it on the center stand no change in clutch noise or vibration when clutch in in or out.
Im thinking this is good :)
 

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Discussion Starter · #14 ·
Unfortunately this seems to be the case too often. My 05 R1200RT was supposedly "perfect" when I went to look at it (6 hour drive). It was far from that. Dirty, no recent maintenance...but it only had 7800 miles so I bit the bullet and am glad I did. I replaced all the fluids, alternator belt, spark plugs, air filter, adjusted the valves, etc. Bike is like brand new and rinds perfect. Was worth the initial investment to make everything new and right as I now have a great running bike that I love to ride.
After reading your post i thought i would check to see if the bike had any sort of service date in the command screen guess what on start up its got a AUG 2013 service date im guessing its well over due.
im sure i asked this if the service was up todate hopefully the service book will turn up this week and if its not im going to talk to consumer affairs.
yes im still waiting on the paper work its been a month since i brought it :rotf:
 

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I'd say that your TB's are out of sync, but as others have mentioned you probably need to do a complete service. FOR THE RECORD being up to date on all servicing, and having been service by the dealer are misleading. When were the services performed? That is the magic question.
Personally I'd do a complete service myself, but I also have to say the RT's buzz, depending upon what rpm, load and weather conditions. Mine runs smoothest in 50-70 degree temps, has some buzz at higher temps. It's a bike.
 

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Discussion Starter · #16 ·
I'd say that your TB's are out of sync, but as others have mentioned you probably need to do a complete service. FOR THE RECORD being up to date on all servicing, and having been service by the dealer are misleading. When were the services performed? That is the magic question.
Personally I'd do a complete service myself, but I also have to say the RT's buzz, depending upon what rpm, load and weather conditions. Mine runs smoothest in 50-70 degree temps, has some buzz at higher temps. It's a bike.
Totally agree

I asked all the correct questions i just don't think they were answered in the way i needed them to be as you have said.
I will wait for all the book work before giving a full and open account of all details to do with this purchase of this motorcycle.
 

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I think a real possibility lies in the fact that in most gears above 2nd, 3000 rpm is lugging your motor. In higher gears I consider 4k rpm the minimum ... since it's my habit to always be ready to accelerate. These are not torque monster motors.
 

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..........

strange you talk about alternator belt i thought i herd the belt make a noise after i washed it yesterday, but couldn't work out how i would of gotten water on it maybe its time for a new one

.......
Don't worry about that belt noise! Putting on a new belt won't get rid of it. It seem that all the '05 - '13 RT will have belt squeal after washing! The alternator cover do have vents, but I couldn't figure out how water gets inside either, but the belt will always squeal soon after washing the bike.
 
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Totally agree

I asked all the correct questions i just don't think they were answered in the way i needed them to be as you have said.
I will wait for all the book work before giving a full and open account of all details to do with this purchase of this motorcycle.
I don't know the procedure for down there, but over here the service records would be in the back of the rider's manual. What mileage service, actual mileage, date the service was done, and signature of the service personnel.

BTW, if you intend on doing the service yourself (very easy!), then do a search on this site and you should be able to download a pdf file of the actual BMW service check list. Very handy to have, and it tells you what needs to be done at the particular mileage.
 

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Good tune-up - TB syncs, valve adj., new plugs would probably help some but with that mileage on it, I'd look at replacing the Alt belt.
I tend to agree with the above, good tune up should make a difference. However, I would disagree with some saying that 3000 RPM is too low for the RT. It certainly is not an optimum performance range, but on a flat ground, I can go as low as 2800 RPM in 6th without lugging the engine and any vibrations. If the tune up and alt belt replacement doesn't help I'd go to BMW dealer for help.
 
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