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Sprocket size help for 85 1100

Started by fj1100turbo, August 26, 2016, 11:52:38 PM

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fj1100turbo

I'm needing help find right sprocket sizes for low end power on my 85 fj1100 with stock 16's

Pat Conlon

Stock on my '84 was 17/42
They sell a 16 tooth counter shaft sprocket. They also sell a 44 or 46 tooth rear sprocket

How low do you want to go, and why?
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

4everFJ

17/41 was standard on my 85 (European model).

I would NOT go any lower on the front sprocket or any higher on the rear. Makes it uncomfortable at low speeds/acceleration.
1985 - Yamaha FJ1100 36Y
1978 - Yamaha SR500
1983 - Kawasaki GPZ550 (sold)
1977 - Kawasaki Z400 (sold)

chiz

Put a 16 0n mine but because I have a Suzuki back wheel I actually had to get the back sprocket made locally as I could not find a low enough tooth number ANYWHERE back then.
Lez

giantkiller

Quote from: chiz on August 27, 2016, 11:21:14 AM
Put a 16 0n mine but because I have a Suzuki back wheel I actually had to get the back sprocket made locally as I could not find a low enough tooth number ANYWHERE back then.
Lez
Lez, do you have a 5bolt rear sprocket or 6bolt for your Suzuki wheel.  How many teeth did you go to? And what did they charge you to have them made? Also are you going to have any more made in the near future?  OK done with the questions.
Thanks Dan
86 fj1350r
86 fj1380t turbo drag toy (soon)
87 fj1200 865 miles crashed for parts
89 fj1200 touring 2up
87 fzr1000 crashed
87 fzr750r Human Race teams world endurance champion
93 fzr600 Vance n hines ltd for sale
Custom chopper I built
Mini chopper I built for my daughter just like the big 1

FJmonkey

The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

fj1100turbo

I'm looking for easier wheelies and low end power...

4everFJ

Quote from: fj1100turbo on August 27, 2016, 06:35:03 PM
I'm looking for easier wheelies and low end power...

Well, the FJ is not really a wheelie machine..  :pardon:

It simply too heavy with a weight distribution that isn't optimal for wheelies. You can of course do wheelies on it, but there are other bikes that are MUCH better at that.
1985 - Yamaha FJ1100 36Y
1978 - Yamaha SR500
1983 - Kawasaki GPZ550 (sold)
1977 - Kawasaki Z400 (sold)

ribbert

Quote from: fj1100turbo on August 27, 2016, 06:35:03 PM
I'm looking for easier wheelies and low end power...

Turn an FJ into a wheelie machine?

You might need one of these up back:



...and one of these up front:



Noel

"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"

4everFJ

1985 - Yamaha FJ1100 36Y
1978 - Yamaha SR500
1983 - Kawasaki GPZ550 (sold)
1977 - Kawasaki Z400 (sold)

giantkiller

Or just put the shorter thunder ace swingarm.
Or a1350. Or both
86 fj1350r
86 fj1380t turbo drag toy (soon)
87 fj1200 865 miles crashed for parts
89 fj1200 touring 2up
87 fzr1000 crashed
87 fzr750r Human Race teams world endurance champion
93 fzr600 Vance n hines ltd for sale
Custom chopper I built
Mini chopper I built for my daughter just like the big 1

racerrad8

Quote from: fj1100turbo on August 27, 2016, 06:35:03 PM
I'm looking for easier wheelies and low end power...

I have in stock, for just your request as well as many others, 15 & 16t front sprockets. I am still surprised how many of these I sell annually, there is a whole bunch of guys that like to ride wheelies.

PBI Front Drive Sprocket

I also stock the rear sprocket options from 38-42.

Rear Steel Sprocket 530

I can also order you either a 47 or 49t steel rear sprocket and can have it is a few days.

Randy - RPM

Randy - RPM

chiz

Quote from: giantkiller on August 27, 2016, 12:38:00 PM
Quote from: chiz on August 27, 2016, 11:21:14 AM
Put a 16 0n mine but because I have a Suzuki back wheel I actually had to get the back sprocket made locally as I could not find a low enough tooth number ANYWHERE back then.
Lez
Lez, do you have a 5bolt rear sprocket or 6bolt for your Suzuki wheel.  How many teeth did you go to? And what did they charge you to have them made? Also are you going to have any more made in the near future?  OK done with the questions.
Thanks Dan

Hi
I have the 5 bolt and the sprocket is 46 or there abouts. It was a dollar a tooth.. was not thinking of having more made only thing is the material is aluminum and was assured if I kept it lubed at ALL times there would be no problem so far they have been right.
    Lez

FJ_Hooligan

How many miles on your current setup?

Oil has no influence on the strength of aluminum versus steel.
DavidR.

FJmonkey

Aluminum sprockets have been discussed before. This might be an interesting read, http://www.fjowners.com/index.php?topic=1817.0
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side