Starter Motor Noisy

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Exile WCB

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Ok here goes. This is alot to read so a quick summary if you can't be bothered with the details.

In Summary - R1150GS Adventure
The bike starts easy enough but the starter motor(I think) lets out a constant loud groan/whine. If you think you may have a clue what is causing this please read on. I am fearful I may need a new starter motor. Hopefully someone can advise me otherwise.

1) Since I purchased my R1150GS Adventure the fast idle has never worked properly. Only time the revs picked up was when I held the lever full up. Got some advice on this thread http://www.ukgser.com/forums/showthread.php?t=230074 and as well as adjsting the cable at the handlebar thought I would have a butchers at the cable distribution unit and see if it looked ok there. It's located underneath the ABS unit so I abandoned that idea.

2) Fast idle/choke now works ok but not great following adjustment(it's now right at the end of it's available adjustment at the handlebar).

3) I will be balancing the throttles once my vacuum gauge arrives.

4) The second irritating thing I've had since I bought the bike is that, particularly when cold, there was a screech following starting up the bike. I presumed I was holding the start button down too long.

5) Today following the adjustment of the choke/fast idle I started the bike no problem with its usual screech. I let it run for a little while and then shut it down. Upon trying to start it immediately afterwards it was difficult to start and the starter motor (I presume it is the starter motor) lets out a constant loud whine/groan as it turns the engine over.

6) It's done this before previously about two weeks ago on a cold morning. The engine, not surprsingly, dies when cold and the throttle is blipped with no choke. Attempting to start it afterwards it exhibited the same symptons. This was before the choke/fast idle was adjusted. Only on this occasion it went away after I had ridden it a while.

7) This time the whine /groan is not going away.

8) Just got home and checked the bike over. Only thing I can see from a rudimentary glance as the night draws in is the vacuum take off point caps are badly cracked and would appear well capable of letting in air. Don't know how important this is as the bike starts easy enough.

My plan going forward is to balance the throttles, replace the vacuum caps and whip the starter motor out and get a look at it. I'm pretty inexperienced at fault finding so a nudge in the right direction would be appreciated.
 
Cracked vacuum covers if badly cracked may allow air in and affect a smooth idle. You need new ones, they won't break the bank and get a spare pair to keep in a zip lock bag for when the 'new' ones get iffy.
Pull the starter off and clean it out. Pop a 'little' grease on the shaft so the engaging gear can turn smoothly but if it's been like that forever it may be scored and worn and...
If you are inexperienced in balancing the throttles, get an old salt to show you first.
It's not hard to do but if yer head's in headless chicken mode you can easily end up with an unrideable bike if you get lost in what you're up to.
 
How many miles has the bike done?.
Before you pull the starter motor,remove the black plastic cover at the front of the motor and check the condition/tension of the alternator drive belt-it may be slipping,hence the noise.
 
It's only done 21K. Yeh now you mention it a loose belt would account for the screeching in the past. Some noise it makes now though. I'll try the Alternator Drive Belt tensioner first.

Thanks guys.

Apparently the 1150GS has a maintenenace free belt. It is expected that a screeching noise will be made when the engine is cold. Mine has been doing that but where's the groaning coming from now.......
 
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:augie
It's only done 21K. Yeh now you mention it a loose belt would account for the screeching in the past. Some noise it makes now though. I'll try the Alternator Drive Belt tensioner first.

Thanks guys.

Apparently the 1150GS has a maintenenace free belt. It is expected that a screeching noise will be made when the engine is cold. Mine has been doing that but where's the groaning coming from now.......

Starter lube is a dead easy job, if you have a long allen wrench for that back bolt.
The groan isn,t the fuel pump is it?
 
I stripped my starter last weekend (mine's an 1100, but same as yours) - easy job following MikeP's howto here:
http://www.ukgser.com/forums/showthread.php?t=207984&highlight=starter+motor
As Welshman says, the back starter bolt is a bit tight to get to - I used a U/J on a 1/4" drive allen bit with a 4" extension.

The groan could be the starter gear failing to disengage after the engine fires.

Cleaning the gearset isn't covered in the howto above, but it's easy to see what to do once the starter is in bits (blitz it with brake cleaner or some other degreaser through the shaft hole in the grease plate and from the front, dry it out and then re-grease).

If you find that the magnets have detached, it's a new / recon starter I'm afraid. I have read that people have reglued them (assuming the aren't in pieces) but it doesn't seem to last.
 
Hi again folks. Thanks for all the suggestions. Took the starter motor apart and lo and behold the grease retaining plate looks exactly as in the photo. Thanks very much MattW for directing me to that link. Very useful.

Guess the next question is can the plate be replaced? I can run it without it obviously but that's not ideal. How long can I get away with doing that? Phoned BMW and they were non committal about if it could be replaced. Looks like it was a push fit before......but that wouldn't seem like a reliable design.......?????

New starter motor is over £250!!!!
 
Hi again folks. Thanks for all the suggestions. Took the starter motor apart and lo and behold the grease retaining plate looks exactly as in the photo. Thanks very much MattW for directing me to that link. Very useful.

Guess the next question is can the plate be replaced? I can run it without it obviously but that's not ideal. How long can I get away with doing that? Phoned BMW and they were non committal about if it could be replaced. Looks like it was a push fit before......but that wouldn't seem like a reliable design.......?????

New starter motor is over £250!!!!

Oh dear :( - but at least you've found the problem...

I might be inclined to try an 'old school' auto electrician - they may be able to repair it. Failing that Motorworks do new starters for £200 or recon for £100 :
http://tinyurl.com/2v2h9bw
 
Oh dear :( - but at least you've found the problem...

I might be inclined to try an 'old school' auto electrician - they may be able to repair it. Failing that Motorworks do new starters for £200 or recon for £100 :
http://tinyurl.com/2v2h9bw

Breakers here GBP 90 new about GBP 500 gonna be ready soon for a flight to the Mud Island, a suitcase of spares will pay for it, doesnt work by Royal Mail:blast
 
Your fast idle lever might not be working because the lower throttle cables (from the junction box to the throttle bodies) have too much slack.
Back off both the fast idle cable adjuster and throttle cable adjusters at the handlebar and remove the slack from the two lower throttle cables at the throttle bodies. Make sure they still hit the throttle stop screws. Check synchronisation and adjust cables at the handlebar.
 
What make is the starter motor, maybe you can search for on the net rather than pay BMW dealer prices, it may well have other applications in other vehicles.
 
What make is the starter motor, maybe you can search for on the net rather than pay BMW dealer prices, it may well have other applications in other vehicles.

It's one of these:
<a href="http://picasaweb.google.co.uk/lh/photo/UnUCmBBsIsEPPo6OobJZKUOOAeJkWHiivqDz0FeWdvU?feat=embedwebsite"><img src="http://lh6.ggpht.com/_SSn2CtCOKnU/S_OggXsN22I/AAAAAAAADF4/JeYO1xM4bI0/s800/IMG_5302.JPG" /></a>

I've read of a few people trying to find a non-bike replacement for one of these - this thread for example: http://www.ukgser.com/forums/showthread.php?t=206156 but unfortunately haven't heard of any conclusive successes.

Motorworks list a Mitsubishi replacement which they say is much better (no glued magnets etc) but it's even dearer than the Valeo.
 
What make is the starter motor, maybe you can search for on the net rather than pay BMW dealer prices, it may well have other applications in other vehicles.

Yup - supposedly common to Fiats and VW stuff. My mate's an auto-elec, I'll try to give him a call.
 
Well - the Valeo D6RA is indeed common to many cars, but it comes in a huge variety of different configurations; different bolt sizes, mounting flanges, teeth on the pinion, direction of rotation. Makes it that much more difficult to find the right one, but I haven't given up.....
 
Hi again folks. Thanks for all the suggestions. Took the starter motor apart and lo and behold the grease retaining plate looks exactly as in the photo. Thanks very much MattW for directing me to that link. Very useful.

Guess the next question is can the plate be replaced? I can run it without it obviously but that's not ideal. How long can I get away with doing that? Phoned BMW and they were non committal about if it could be replaced. Looks like it was a push fit before......but that wouldn't seem like a reliable design.......?????

New starter motor is over £250!!!!

Exile,

I sent you a pm yesterday offering a good secondhand one at a very reasonable price delivered :D

I bought a new one thinking mine was faulty but it wasn't - don't ask :(
 
Thank for all the suggestions folks. Sorry Dave I had already ordered a reconditioned one from Motorworks before I read your message........
 
New starter fitted and bike starts no problem. Deleviry was exceptionally quick. Ordered Tuesday night came this morning. Thanks Motorworks.
 


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