K11 Owners Group

AUSBRICK · Posted: Wed Dec 23, 2009 6:46 pm Post subject: ENGINE RATTLE

Gidday everyone, Have recently noticed an occasional rattle in the motor of my k1100. It only happens after giving the motor a hard rev while in neutral and then backing off sharply , on the road there are no noises,I,m thinking the starter clutch , if it is this can it cause major dammage if it fails or does it just stop starter working. It may not be the starter so if any one has any other suggetions let me know as I,m planning a fairly long run soon and don,t want to do a pull down straight away. Cheers Ausbrick mick
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92k1100 lt with sidecar. 93K1100 CAFE..86K75C.95 k1100lt

Flying Duck · Posted: Wed Dec 23, 2009 6:53 pm Post subject:

How many miles? (kms)
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93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

AUSBRICK · Posted: Wed Dec 23, 2009 7:14 pm Post subject:

Its done around 150 000 ks but I pulled it down and did rings and bigends about 10 000 k ago everything else looked good at the time what do you think it might be thanks Mick
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92k1100 lt with sidecar. 93K1100 CAFE..86K75C.95 k1100lt

SugarHillCTD · Posted: Wed Dec 23, 2009 7:18 pm Post subject:

Mick,

You mentioned that it does it in neutral.

But does it decrease/disappear if the clutch lever is pulled in as opposed to leaving the lever alone?
If pulling the lever in diminishes the rattle, I have the same thing (Phil Marvin sat at a traffic light and asked me about my bike's rattle)

Let us know.
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John & Cathy

'92 K100RS4V Pearl White SOLD
'04 K1200GT
IBA Several-SS1k, BBG, 50CC NYC to S.F.

AUSBRICK · Posted: Wed Dec 23, 2009 7:39 pm Post subject:

No the rattle is not present all the time it's only after it has been revved quiet hard to say 8000 and as the revs drops back to idle there is a rattle that is only for a second and not uniform sometimes longer or shorter or not at all I think it might be the gear that the starter spins is getting wound up to a high speed on fast revving then is possibly getting slightly off balance as it winds dowwhich might mean the bearing it runs on is getting worn my current worry is I want to do a few long runs before I pull out the motor and was wondering if any one knows about this noise and if it could cause hassles in the short term say 5-6 000 ks thank Mick
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92k1100 lt with sidecar. 93K1100 CAFE..86K75C.95 k1100lt

Flying Duck · Posted: Wed Dec 23, 2009 9:11 pm Post subject:

First suspect is the alternator monkey nutz - listen down by the alt.
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93 LT (x2)
94 RS
86-97 K75F(K75/100/1100 Frankenbrick)
86 K75C w/paralever, hi perf cams,TURBO!
91 & 92 K75Ss
91 K1
86 custom K100
14 WR250R
IBA #17739 (SS1K, BBG, 50CC)
Buy parts HERE

SugarHillCTD · Posted: Wed Dec 23, 2009 9:14 pm Post subject:

AUSBRICK · Posted: Thu Dec 24, 2009 1:17 am Post subject:

Just finished taking the alt & starter off everything was tight and in good order , so I will keep an eye on it for a while and get some ks up . Cheers MICK
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92k1100 lt with sidecar. 93K1100 CAFE..86K75C.95 k1100lt

old guy old bike · Posted: Fri Dec 25, 2009 6:01 pm Post subject:

One of the hardest things on a motor is to free rev it. Everything moves all around because it does not have a load on it. Beats the snot out of the bearings over time. Just my 2 cents.
Jeff
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1993 K1100LT
2003 K1200GT Gone but not forgotten
2014 Victory Crossraods

AUSBRICK · Posted: Sun Dec 27, 2009 12:58 am Post subject: free reving

Thanks for that tip " der"
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92k1100 lt with sidecar. 93K1100 CAFE..86K75C.95 k1100lt

skyrider · Posted: Thu Dec 31, 2009 5:42 pm Post subject:

I always give a sigh when I'm around a "throttle blipper"
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93 K1100LT mystic red, et al