Tachometer output shaft 'O' ring

[semerm]

I have a 1981 gs850gl that has developed a leak in the tachometer shaft. Is there a source where I can get the o ring without buying the whole gasket? How hard are they to install?

[gke84]

tachometer shaft o ring

you can get it at the dealers.

[gke84]

tachometer shaft o ring

if im not mistaken ,there are two o rings.

[GSstiny]

Yes, there are two seals. If this link works they are #27 &28. They might vary by application, so Id check to be sure.

http://houseofmotorcycles.bikebandit.com/partsbandit/oem_schematic_view~schem_dept_id~989147~section_dept_id~1~section_dept_name~OEM+%28Stock%29+Parts~dept_type_id~2~model_dept_year~1979~model_dept_mfr~Suzuki~model_dept_id~987835~model_dept_name~GS750LN.asp

[semerm]

removal and instal

I looked at the picture and it looks really easy. Any hidden problems? Just take the screw out, remove the items, replace the o rings and re-install. Any special tools needed? Will oil run out of it what I do this? Help appreciated.

[GSstiny]

Nope. It really is that easy. Youll get a little oil when you pull the drive gear but its nothing you cant wipe up with a rag.

[bwringer]

Complete instructions, part numbers, and purty pitchers:

http://bwringer.com/gs/tachcableseals.html

Enjoy!

[semerm]

thanks

You folks are great. All the info I need with pictures as well. It does look pretty easy. Have a great day!

[semerm]

oh no!

This was really easy however, when I went to re-install the screw to hold the retaining clip, the screw broke! Does anyone know wha the threads and size of this screw so I can pick one up before I try to extract the old one?

[bwringer]

It's a 5mm thread X .80mm pitch.

I don't know the length, but it's probably 10mm or 12mm.