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01-04-2024, 05:08 PM | #1 |
Silver Member
Join Date: Jul 2006
Location: Poole
Bike: M900ie
Posts: 508
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Fitting a steering damper
Hi all, OK then I've been contemplating fitting a steering damper to the heap for some time (even though it's adding weight). The typical issue is when winding it on, particularly if it involves hitting a few cats eyes, i.e when overtaking. My main problem is of course is my own awkwardness, because I really hate those universal fitment - clamp round the fork leg type of damper set ups. Unfortunately with my 1994 frame & SS yolks, I can't see any obvious alternatives. I'm favouring a below the bottom yolk set up, but haven't worked out how to do it yet. So has anyone out there got any suggestions, preferably fully illustrated.
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Bitza |
01-04-2024, 06:47 PM | #2 |
Lord of the Rings
Join Date: May 2013
Location: Norwich
Bike: M900sie
Posts: 5,963
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Okay, the last steering damper I had involved Ferodo discs on a rod going through the steering stem topped off with a big Bakelite Knob for adjustment.
I'll suggest another approach though. What tyres are you using and what sections? I know you started with a 600 but can't imagine you're still on 600 wheels and tyre sizes? I do notice that my 900ie weaves a bit on the white lines when overtaking with spirit, but this is always down to the tyres getting worn. Even a hard to find flat on the rear will start the wobble off, around the 4000/5000 mile mark. Bridgestone BT023 GT seem to be holding their profile well after nearly 7000 miles and no sign of white-lining, but not on a Monster in this case. I will be fitting BT023 on the Monster next though. (But not the GT version, which is for heavyweights.)
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01-04-2024, 07:06 PM | #3 |
Silver Member
Join Date: Jul 2006
Location: Poole
Bike: M900ie
Posts: 508
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Thanks Gary, but I don't think this is a tyre issue, when I ride with determination the front end gets very light as the front rises, accompanied with quite pronounced shaking. Which is what I am seeking damp.
Re the old style damper, I can't ever remember tightening one up, did you.
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Bitza Last edited by Bitza; 01-04-2024 at 07:10 PM.. |
01-04-2024, 08:16 PM | #4 |
Lord of the Rings
Join Date: May 2013
Location: Norwich
Bike: M900sie
Posts: 5,963
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I tried it, but it just made the steering stiff and wasn't needed, so I just used to have it tight enough to not fall off, which unfortunately it did one night, hitting my knee as it flew.
I never did find the knob, which was the proper AJS one with the badge moulded in. Thought I might need it when I put a chair on but I knew how to track it properly, so didn't even need it for that. My 900 used to aviate sometimes under hard acceleration but didn't wobble until it twitched touching back down again, which is when I realised it had been in the air. I've had the measure of it for years though and seem to manage the throttle better.
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02-04-2024, 09:33 AM | #5 |
Registered User
Join Date: Sep 2010
Location: Leics
Bike: M900
Posts: 2,894
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I fitted a damper in front of the tank, taking inspiration from my 916;
I used a combination of bracketry, including some custom/home made parts and whilst it's not as neat as the 916 version, I think it turned out OK in the end.
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M900, 916, LeMans II. |
02-04-2024, 10:17 AM | #6 |
Transmaniacon MOC
Join Date: Sep 2013
Location: Sutton In Ashfield
Bike: Multiple Monsters
Posts: 6,091
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My S4 was flighty even though it had a factory damper, until I raised the rear end and that calmed it down.
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Roast Beef Monster! Termignoni and Bucci - Italian for pipe and slippers! S4 Fogarty, S4R 07T, 748, Series 1 Mirage |
02-04-2024, 01:39 PM | #7 |
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Join Date: Jul 2003
Location: East London
Bike: Multiple Monsters
Posts: 9,733
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I was thinking about using a 916 setup under the yoke, with a ‘spigot’ welded to the frame and a triangular plate bolted to the two deflector flap mounting holes in the bottom yoke. Never got round to seeing if it would all fit with the right geometry.
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19-04-2024, 03:53 PM | #8 |
Silver Member
Join Date: Jul 2006
Location: Poole
Bike: M900ie
Posts: 508
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Well I bought myself a bargain Ohlins damper(£60), feeling pretty chuffed with my self until I put it on the scales 310gms. Why is it when you look to save a bit of weight it's 50 to 100 gms, think about putting something on and its up into the hundreds.
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Bitza |
19-04-2024, 06:32 PM | #9 |
Too much time on my hands member
Join Date: Jun 2007
Location: Forest Of Dean
Bike: S2r
Posts: 3,206
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I'm mostly with Mr G here, the last steering damper I used was on a 350 scrambler. There is one on the R but that's turned down to 0.
A damper is just usually hiding the cause rather than fixing it, a bit of tyre wear with slight wear in bearings, headrace a tiny bit too loose is all it takes, mismatched fork setup or mistach fron to rear set up, take your pick any will cause it. Typically the damper hides any instability until it gets overwhelmed and then it comes back, hopefully that's at a speed that your unlikely to achieve.
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"The final measure of any rider's skill is the inverse ratio of his preferred Traveling Speed to the number of bad scars on his body." Song of the sausage creature |
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