GS1100 Help on identifing motor

[racerz]

rotor width compare

20171121_232013.jpg

rotor width compare

[racerz]

block casting

20171121_232151.jpg

block casting, assume this means its a 1100

[kochic]

If I can find my puller I have one rotor that you need.
Marc

[Redman]

[ATTACH=CONFIG]53321[/ATTACH]

stator pic

18 pole (not 12 pole) , so 1980 and after

Was a lot of deign changes across all models from 1979 to 1980, the stator being one of them.

[Redman]

[ATTACH=CONFIG]53322[/ATTACH]

rotor sizes, the one on the left is correct, the one on the right is what the parts guys sent me, claiming to be off a 1100

notice 9 (halve of 18) verses 6 (half of 12).

[Redman]

[ATTACH=CONFIG]53325[/ATTACH]

block casting, assume this means its a 1100

yep, 1074 is 1100.

[GregT]

If it's a speedway car, depending on your local rules, you can drop the stator and charging system. To lighten the crank, it's possible to separate the rotor outer from the hub - leaving the starter clutch in place. This will help off corner acceleration noticeably.
A modest battery will see you right for a days (or evenings) racing. First start from cold use a jumper battery but after that your on board battery will do it.
Yes, those are RS Mikunis - on a little oval raised piece on the side there's a number - 36, 38, 40 etc. This is the bore size in mm.

[racerz]

If I can find my puller I have one rotor that you need.
Marc

Interested on the rotor, let me know ,thanks

PS. I can mail you my puller to take it off if needed.

[racerz]

My parts guy just sent me another rotor hub and its is wrong as well. Here is the pics, the one on the left is what he sent, the one on the right is mine. The center section extends out 1-7/16" on the incorrect hub and mine extends out 1-1/8", also the longer one has a smaller hole and will not allow the crank snout to go through. Also the stepped lip to center or register the starter sprag is smaller O.D. of 3.070", mine is 3.306" and has a bigger 3 bolt pattern. Any idea why they are different and the application for the incorrect one?20180101_133533.jpg

[racerz]

starter sprag step comparison pics20180101_133512.jpg

[posplayr]

[ATTACH=CONFIG]53321[/ATTACH]

stator pic

Toasty stator

[racerz]

FYI, I want to thank everybody for their input and help, I was able to identify the motor and find the correct part from one of your members. thanks again

[revolution]

rotors....katana small vs gs1100 big....for a record