R1200GS shudder

[jimmystewpot]

Hi There,

I got on my GSA today after about 4 days of not riding (shame on me) and when I went to take off the bike shuddered as though the engine was at too low-revs and the clutch not right. I didn't think too much of it until I noticed that no matter what I did with the revs/clutch it was happening. Has anyone had an issue like this? I ended up riding back around the block a few times and taking it back home.

Any advice would be good.

Regards,

Jimmy.

 

[EasySushi]

Hi There,

I got on my GSA today after about 4 days of not riding (shame on me) and when I went to take off the bike shuddered as though the engine was at too low-revs and the clutch not right. I didn't think too much of it until I noticed that no matter what I did with the revs/clutch it was happening. Has anyone had an issue like this? I ended up riding back around the block a few times and taking it back home.

Any advice would be good.

Regards,

Jimmy.

I guess you got 20/50 oil in your bike, change it to 10/40. 20/50 in this cold type weather is to thick and syrupie, when you start the bike with 20/50 in cold weather it will sound like a bag of bolts and shudder.

10/40 is thinner and spreads around your engine quicker on startup and works better at lower temps, just make sure you change the oil back to 20/50 by mid spring


ty

 

[RickG]

I would have thought it was just as cold 4 days previously?

Is it only shuddering as you slip the clutch as you set off? If so I'd be thinking about oil on the plates.

 

[gavin@iow]

I guess you got 20/50 oil in your bike, change it to 10/40. 20/50 in this cold type weather is to thick and syrupie, when you start the bike with 20/50 in cold weather it will sound like a bag of bolts and shudder.

10/40 is thinner and spreads around your engine quicker on startup and works better at lower temps, just make sure you change the oil back to 20/50 by mid spring


ty

Or you could put a 10w50 in, and leave it in for summer and winter.

 

[Ali-bear]

Its become an oil thread already! 15W50 is your friend.

If it keeps juddering like that I'd give it more beans and slip the clutch a bit.

Maybe recalibrate the TPS?

 

[bashkeria]

Got my new GSA last July and the clutch was the same for about a couple of hundered miles changing up or down in 1st / 2nd, just slipped it more till it bedded in and gave it a bit of welly, now it is fine

 

[Deleted account 211025001]

From the description I don't think it sounds anything like engine oil related.

10/40 in VERY hot conditions will make the cam chain rattle as pressure is lost to the tensioner and 20/50 in VERY cold conditions will do similar on start up.

I can't see how engine oil grade affects a dry clutch

Several things to check:

High miles and therefore part worn plates - check fluid level in master cylinder has not risen too much and is causing plates to slip.

Hand guard - potential to fowl the clutch lever

Slave cylinder seal starting to go - not unheard off

Contaminated plates from a weeping output seal failure

Or take it out for a damm good thrashing and see if that clears it, if nothing else it'll put a smile on your face

Andres

 

[Pukmeister]

Good advice from Outtomunch.

I'd be tempted to park it with front wheel touching a brick wall, select 2nd gear then slip the clutch a bit and get the clutch plates hot and see what happens.

Apart from making a stink from the plates, it may burn off any contaminants or help to bed the clutch in and remove high spots from the friction plate which can cause judder.

Clutch judder can be from several causes including uneven wear, faulty clutch plate springs or contamination of friction linings. If it keeps doing it, it sounds like a warranty job if still under dealer warranty. And don't let them fob you off with the old 'fair wear and tear' bit, as it isn't. It's a clutch fault.

 

[littleredrooster]

I guess you got 20/50 oil in your bike, change it to 10/40. 20/50 in this cold type weather is to thick and syrupie, when you start the bike with 20/50 in cold weather it will sound like a bag of bolts and shudder.

10/40 is thinner and spreads around your engine quicker on startup and works better at lower temps, just make sure you change the oil back to 20/50 by mid spring


ty

Never heard such a load of bollocks. Sorry but it's got nowt to do with oil grade.

Mine had a fit of "juddering clutch" after it stood outside overnight in heavy rain once. A bit of judicious clutch-slipping to warm the clutch plate up did the trick, so I can only think it was a bit of dampness.

 

[EasySushi]

Never heard such a load of bollocks.

Whats you problem, I gave the guy a bit of advice from what I have experienced on my 1200GSA with 45,000 miles, and you give it all that.

I'm saying I had the same problem, like he has described and changing the oil to 10/40 sorted my issue because where I live the temp drops down to -8 at night.

If you disagree fine, you think that it may be something else causing the problem fine.

But how about wording your disagreement in less offensive manner.

 

[littleredrooster]

Whats you problem, I gave the guy a bit of advice from what I have experienced on my 1200GSA with 45,000 miles, and you give it all that.

I'm saying I had the same problem, like he has described and changing the oil to 10/40 sorted my issue because where I live the temp drops down to -8 at night.

If you disagree fine, you think that it may be something else causing the problem fine.

But how about wording your disagreement in less offensive manner.

My problem is that you come on to a 'technical' forum with little or no knowledge of the subject. You are offering an opinion rather than advice based on engineering knowledge, which is fine in the right place but not on here.

I cannot (will not) believe that 20W/50 oil will cause any oilhead BMW to 'shudder' in cold weather after having ridden the things for 8 years and close to 100,000 miles with all sorts of oils in all sorts of conditions.

Sorry if I offended.

 

[Pukmeister]

Ah come on fellas, put the handbags down and lets all play nicely eh.

 

[EasySushi]

My problem is that you come on to a 'technical' forum with little or no knowledge of the subject. You are offering an opinion rather than advice based on engineering knowledge, which is fine in the right place but not on here.

I cannot (will not) believe that 20W/50 oil will cause any oilhead BMW to 'shudder' in cold weather after having ridden the things for 8 years and close to 100,000 miles with all sorts of oils in all sorts of conditions.

Sorry if I offended.

There you go you hit the nail on the head; I have offered an opinion based on experience of my bike and similar issues. Jimmy posted the question “Has anyone had an issue like this?" and I replied.

I am not a BMW technician and do not a have any engineering qualifications, but I guess 90% of the people that reply to other peoples post don't either it is all based on there own experiences and knowledge they have acquired since owning a 1200GS.


Thanks for the apology