New rear shock

[Mrs Vale46]

Hi Guys,

My poor little NSR125 was not taken care of by the previous owners And it is looking like a new rear shock is needed however I dont have a lot of money and Im a little scared of the job in hand. Can anyone just run through a rough outline of the procedure, and also where to go for a reasonable price one!

Emma-Louise

[c_dug]

Can't help with removal and changing but ebay has loads of NSR shocks, starting with a really grubby one at £10, there are some pretty tidy ones for £40-£70

NSR125 shock absorbers




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[Teflon-Mike]

Oh dear.
See Snowies thread I linked in your 'Hello-Post'.
She's done a complete rear suspension over-haul on her CB125 mono-shock, like the NSR.
New shock for her bike, was £80 off e-bay for pattern replacement.
Your looking at £120 up for some, and around £240 for something like a Hagon, though thats still a lot cheaper than gen Honda Spares.
However, if the shock is shot, I'd be looking very carefullt at the rest of the suspension linkage.
Shock is normally sealed, and it works until either the seals wear out or go hard with age, and the gas escapes so the damping oil doens't get soved around, and or oil escapes.
BUT, its the links working it that normally wear, and if the bikes been neglected, it'll be the bushes in those links and the main pivot for the swing arm that have never been greased that will have worn and be making it sloppy, as well as the lack of damping from a soggy-saggy shock.
Re-bushing a multi-link rear suspension system isn't too difficult, as Snowie discovered, but on a Honda..... it ent cheap. The bushes are a tenner a piece, and on her bike, there were four on teh swing-arm spindle, four more in te swing arm for teh drop link than I think seven more in the rest of the linkage!
and thats just the outer-bushes, theres a metal sleeve inside each one, and if they are rusted and pitted, and need renewing..... its maga-money!
But, point is, all needs checking over.
Damper Unit, on its own, probably the least effected by neglect.
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My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'

[Teflon-Mike]

https://snowtigeress.webfreehosting.net/Pup_09_Bushing_Suspension.htm

Actually, the relevent section on her 'Blog-spot' webby.

Incomplete I'm afraid, but gives you an idea.

Just swapping teh shock, according to the CB125 Manual (same Pro-Link suspension system) you have to undo the top mount for the shock, then remove the swing-arm spindle, and drop the entire suspension assembly off the bike, to remove the shock.

Then fit new shock to the linkage, and offer the assembly back up to the bike, locating top mount of shock on its eye as you wiggle the swing arm back into place and insert swing arm pivot pin, then bolt shock top mount up.

I dont think you can take the shock out (easily) without removing the swing arm.
____________________
My Webby'Tef's-tQ, loads of stuff about my bikes, my Land-Rovers, and the stuff I do with them!
Current Bikes:'Honda VF1000F' ;'CB750F2N' ;'CB125TD ( 6 3 of em!)'; 'Montesa Cota 248'. Learner FAQ's:= 'U want to Ride a Motorbike! Where Do U start?'