650E Compatible Parts List?

[KillerGriller]

I know this is a loaded question, so my apologies for being ignorant up front:

I've been trying to look up/shop parts for my 1982 650E, and I'm finding it increasingly difficult. Some manufacturers group 650s together because the part is the same for all models, some differ because of different options (E has a chain), but when you start comparing brands against each other, some manufacturers skip the 650E all together? Is that because they don't have parts for them? Or should I know that when they list a 1983 650EX compatible part that the part it will fit my '82 E? (e.g. - AllBalls Wheel Bearings/Seals - GS 650 GLX/GLZ/GX/GZ '81-'82, GLD '83, GD '83, EX '81-'82)

Sorry for the long preamble, anyway, is there a chart or lookup table somewhere that shows what parts/sizes are similar and what is different between models?

Cheers

[Nessism]

You can compare the part numbers to see if the parts are interchangeable. Partzill's parts fishe also shows applicability for each part number too.

[Steve]

Or should I know that when they list a 1983 650EX compatible part that the part it will fit my '82 E? (e.g. - AllBalls Wheel Bearings/Seals - GS 650 GLX/GLZ/GX/GZ '81-'82, GLD '83, GD '83, EX '81-'82)

Just so you know, ... there is no such thing as "a 1983 650EX", let alone any compatible parts for it.

The 1983 is obvious. The 650 is also obvious. The E defines it as a chain-driven bike, while the G is shaft-driven. The X is Suzuki's model year code for a 1981 bike, which conflicts with the 1983.

It's not quite as bad as Harley's alphabet soup model designation, but it helps to know what the leters mean so you can decipher the information.

Limiting the information to the 650s, which were available from 1981 through 1983, in the US market:
1981 model year has an X at the end of the serial number on the VIN plate.
1982 model year has a Z.
1983 model year has a D.

I think the chain-driven 650E was only available in '81 and '82, therefore 650EX and 650EZ.
The shaft-driven 650G came in all three years, therefore 650GX, 650GZ and 650GD.
The shaft-driven 650GL came in all three years, therefore 650GLX, 650GLZ and 650GLD.
Note that the G did not show on the L's side covers, they only showed 650L.

To answer your question about steering bearings, I believe they are all the same, but as Nessism suggests, check the parts fiche to be sure.

.

[Chuck78]

the 650E bottom end parts are same as most GS550 8V. even the cases part number I'm assuming for 1981+ GS550 is same as a GS650E. I think you could run a GS650E set of crankcases even with parts from a kickstart 77 GS550 bottom end and clutch cover. Crank rods etc all the same. clutch basket.

top end is mostly all the same as the 650G except camshaft sprockets and the base gasket should be a specific 650E part unless they superseded the GS550 base gasket with one that works with the GS650E cylinder sleeves also. the GS650G base gasket is set up for the plain bearing bottom end's oil pump setup which has oil jets at the crankcase base gasket area outside studs. The 650E uses no jets (bigger hole low pressure higher volume), and the 550 type egg-shaped oil pressure o-rings around the outside studs.

As far as the rest of the bike, the rear wheel stuff is likely all the same as a similar GS550E, front should be same as that AND the 650G for bearings etc.
Partzilla PartsOutlaw, CMSNL etc should all have exact listings for the GS650E, so as another poster told you already, use the Partzilla site to see what you need and what the interchange info is on each part between your model and other Suzuki models. There's no confusion in their OEM manufacturer parts interchange info. Every once in a while you will see a model omitted or something funny, but once you click on a similar model, you will see that it will say some parts fit GS550B, GC550C, GS550EC, GS550EN, etc and you will know that these are the correct parts for your model.

[KillerGriller]

Just so you know, ... there is no such thing as "a 1983 650EX", let alone any compatible parts for it.
The 1983 is obvious. The 650 is also obvious. The E defines it as a chain-driven bike, while the G is shaft-driven. The X is Suzuki's model year code for a 1981 bike, which conflicts with the 1983.

It's not quite as bad as Harley's alphabet soup model designation, but it helps to know what the leters mean so you can decipher the information.

Limiting the information to the 650s, which were available from 1981 through 1983, in the US market:
1981 model year has an X at the end of the serial number on the VIN plate.
1982 model year has a Z.
1983 model year has a D.

I think the chain-driven 650E was only available in '81 and '82, therefore 650EX and 650EZ.
The shaft-driven 650G came in all three years, therefore 650GX, 650GZ and 650GD.
The shaft-driven 650GL came in all three years, therefore 650GLX, 650GLZ and 650GLD.
Note that the G did not show on the L's side covers, they only showed 650L.

To answer your question about steering bearings, I believe they are all the same, but as Nessism suggests, check the parts fiche to be sure.

.

My apologies, I was transcribing from an online catalogue an probably typed 83, instead of 81. Thanks for the head's up on the Z/X/D classification, that clears a few things up.

I'm getting confused when I see things like Progressive front springs offered for a number of similar models but not exactly my model; are they not available or are the they same as the G or L? etc. I have been looking at the parts fishe, but must have missed the interchange info, I'll keep digging.

Cheers

[KillerGriller]

I'm using the Z1 website (https://www.z1enterprises.com/fork-s...t-11-1106.html) looking for Progressive front springs for my '82 650E, and I see the following in the fitment table:

• 1982 Suzuki GS650 GS650GLZ
  1982 Suzuki GS650 GS650GZ

On the Progressive website the fitment looks like this:

Select the model of your 1982 SUZUKI vehicle:

• GS550
• GS650G (Shaft)
• GS650GL
• GS750E

Since this is a front end piece and not related to the drivetrain (chain/shaft), should I assume the 650G springs will fit a 650E as per Chuck78's suggestion?

The 550, 650G/GL, and 750 all have different part numbers so I'm guess that's because of the weight difference?

Cheers

[Steve]

They might have differences in length or strength, but it doesn't really matter.

If you are looking for a better ride, go with straight-rate springs from Sonic Springs.

Use their rate calculator to determine which rate to order. It's based on your gravitational attraction and riding style.

Top it off with the proper amount of 10w fork oil, then enjoy the ride.

.