1978 GS750 Sidecover screw spec??

[dogmotor]

Got some nice sidecovers without screws for a '78 GS750. Does anybody know the specs? (Or if you have some to sell, let me know.)

TIA!

- Mark

[ptm]

The stock part is a 6mm bolt x 16mm long with 1.0 thread pitch. It's a Philips head but the head is slightly larger than standard - it's a little bigger diameter. The Phillips screws off the engine case covers that everyone replaces with Allen head cap screws work well, although the head is a little smaller. A little black paint (or magic marker) and you hardly notice...

[bwringer]

This guy sells sets of properly sized stainless steel allen head screws for decent prices.

http://stores.ebay.com/Burks-Motorsports

Several people here have ordered from him and been happy. You have to admit it seems like a tough way to make a buck -- endlessly counting screws and putting them into bags, researching obscure motorcycles and their fasteners...

The lengths of the screws are embedded in the Suzuki part number, so you can usually figure them out from a fiche.

Here's an online fiche with real part numbers:

http://flatoutmotorcycles.com/fiche_select.asp

As an example, on the clutch cover on a 1978 GS750, it appears to use two 6mm thread X 55mm length screws and eight 6mm thread X 20mm screws.

The 6X55mm screws:
Part #: 02112-06557

The 6X20mm screws:
Part #: 02112-06207

Note the first four digits in the second half of the part number.

In case you're wondering, you always leave the head out when you measure fasteners. The diameter is the width of the threads (NOT the size of the wrench or bolt head), and the length is the shank measured from under the head to the tip.

Phillips head (cross head) screws are just sick and wrong -- a terrible joke. I hate them.

Standard 6mm hex head bolts have 10mm heads, and are too big to be used on GS cases.

Allen head stainless steel screws (with antiseize applied) are the only way to go, unless you must have absolute historical accuracy. Regular steel rusts instantly.

You can also buy stainless allen head screws in bulk from several places. My favorite is McMaster-Carr:

http://www.mcmaster.com

I've also ordered from MMS:

http://www.mmsacc-stainless.com/

[Boondocks]

Z1 Enterprises has the Suzuki GS750 E L 77-79 Bolt Set 658, a 67 piece (62 stainless steel Allen head bolts and 5 keys) for $24.95 plus shipping.

Jeff Saunders of Z1 Enterprises is a member of these forums and will give you good service.