ST1100Y
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Well, replacing those O-rings went way smoother then expected...
Having the NT elevated on the bike lift and equipped with Gibbon length arms I simply reached around the engine, to put the new O-rings in place...
No special tricks with dental floss or such required...
My"surgical pliers" came handy though... wondered when I ever gonna need them anyway...
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Easy SOP, drain coolant, clean work area and parts, remove the clips, wiggle and push the tube back and forth as required...
Old O-rings dry, hard, crumbled on touch...
Some silicone grease on the new ones... the whole ordeal took less then an hour...
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Filled coolant again, cranked her, let her idle/warm up for a while, everything bone dry now...
A tad more challenging was making those 4mm spacers required for the end-weights...
The OEM grip heaters for my ST1100 always had plastic spacers included, no such luck finding them for the NT anywhere...
So I ordered an thick-walled aluminum tube (16x5x300mm), drilled one end to 6mm, cut two "disks" and ground the required steps into each side with my tiny Bosch GWS 12V-76 cordless angle grinder... flawless...
Buttoned her up again, lights, t/signals, brake lights, new horns, everything in working order...
Topped off the tire pressure, ready for push-back and take off...
Having the NT elevated on the bike lift and equipped with Gibbon length arms I simply reached around the engine, to put the new O-rings in place...
No special tricks with dental floss or such required...
My"surgical pliers" came handy though... wondered when I ever gonna need them anyway...

Easy SOP, drain coolant, clean work area and parts, remove the clips, wiggle and push the tube back and forth as required...
Old O-rings dry, hard, crumbled on touch...
Some silicone grease on the new ones... the whole ordeal took less then an hour...

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Filled coolant again, cranked her, let her idle/warm up for a while, everything bone dry now...
A tad more challenging was making those 4mm spacers required for the end-weights...
The OEM grip heaters for my ST1100 always had plastic spacers included, no such luck finding them for the NT anywhere...
So I ordered an thick-walled aluminum tube (16x5x300mm), drilled one end to 6mm, cut two "disks" and ground the required steps into each side with my tiny Bosch GWS 12V-76 cordless angle grinder... flawless...
Buttoned her up again, lights, t/signals, brake lights, new horns, everything in working order...
Topped off the tire pressure, ready for push-back and take off...