1100 big crank rotor or not?

[still_bluenoser]

I just picked up two old suzuki's. I'm a honda guy really, but am diving into these projects!!

First one is a 1982 GS1100E that was apart but complete until I pulled the stator cover off.

The rotor, or flywheel, starter clutch, and the gear that goes between the starter and clutch is gone...

From what I read the E has the big crank, but I would like to know how to know for sure.

Is the 55mm removal tool for the big crank verses the 50mm? I'd like to know before I post on the wanted section...

thanks!!

[still_bluenoser]

I'm having some confusion also in identifying my model. The papers say 82 but it looks like an 81 model with the integrated square headlight etc.

Is there a place to check frame and engine numbers?

I've got a line on 81 parts but dont want to pull the trigger yet...

[posplayr]

Big end is 83 1100E and above with a very few 82 1100E's much more the exception than the rule. Big end refers to the taper on the crank. The pullers are different as well. I know I have posted sources for different pullers if you do a search under my name.

83 1100E 16V Black motor big end welder crank.

80-82 1100E 16V Silver motor small end non welded crank

rare exception silver 82 with big end welded crank

you can search for differences.

[still_bluenoser]

rare exception silver 82 with big end welded crank

you can search for differences.

Do you know if the dealer would be able to run the engine #'s to tell the difference?

I've done alot of searching on here, but not having the parts I need I dont really know what to look for...

I guess if the crank threads are 55mm I have a big crank, if they are 50mm they are the small crank?

[gearhead13]

Big end is 83 1100E and above with a very few 82 1100E's much more the exception than the rule. Big end refers to the taper on the crank. The pullers are different as well. I know I have posted sources for different pullers if you do a search under my name.

83 1100E 16V Black motor big end welder crank.

80-82 1100E 16V Silver motor small end non welded crank

rare exception silver 82 with big end welded crank

you can search for differences.

So, are you saying that if the '82 crank is welded then it has a big end?
What do you measure to find out if it is a big end? Nut size or thread size?

[posplayr]

So, are you saying that if the '82 crank is welded then it has a big end?
What do you measure to find out if it is a big end? Nut size or thread size?

I'm pretty sure

Big end refers to the taper on the crank.

[blowerbike]

large rotor threads=small taper crankshaft.
small rotor threads= big taper crankshaft.
write it down ladies.

[posplayr]

large rotor threads=small taper crankshaft.
small rotor threads= big taper crankshaft.
write it down ladies.

but is

big end= big taper?

[rapidray]

So, are you saying that if the '82 crank is welded then it has a big end?

NOT neccessarily true! I just took apart an 82 motor that I know for a FACT, had NEVER been apart & it had a FACTORY welded SMALL end crank! It is for sale by the way & less than 5000 miles on it. Ray.

[rapidray]

but is

big end= big taper?

Yes, that is correct. Do I owe you any money? Ray.

[posplayr]

Yes, that is correct. Do I owe you any money? Ray.

Yea remember I loaned you $1 million at lunch the other day . I'll take it is small bills

[still_bluenoser]

large rotor threads=small taper crankshaft.
small rotor threads= big taper crankshaft.
write it down ladies.

Etched in my brain


Thanks so much!

Now I suppose that the big end crank also has a specific starter clutch as well?

[Guest]

Man this is so cornfusing

[still_bluenoser]

Just got confirmation from a great guy named Terry over the phone that the flat area after the taper that the needle bearings from the starter clutch ride on are

Small crank: 25mm
Big crank : 29mm


I'm really impressed that I was able to call someone in another country, and he would take his time to pull out tools and measure things for me just for information!

Thanks so much Terry! This is a great introduction into the Suzuki community!

[posplayr]

Just got confirmation from a great guy named Terry over the phone that the flat area after the taper that the needle bearings from the starter clutch ride on are

Small crank: 25mm
Big crank : 29mm


I'm really impressed that I was able to call someone in another country, and he would take his time to pull out tools and measure things for me just for information!

Thanks so much Terry! This is a great introduction into the Suzuki community!

sooner or later you will need this link.

Pic is of the Big End crank (small thread) puller.

http://www.thegsresources.com/_forum/showthread.php?t=141742&highlight=rotor+puller