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Broke chain, what now?

Started by ryanschoebel, April 28, 2018, 12:31:29 PM

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ryanschoebel

While reading, I see that it says that changing gearing can effect the speedo. That doesn't seem the case here, considering it reads at the front wheel? Also, I haven't decided yet, and will see what I have on rear sprocket right now, but I think I want to gear it down. I'm not sure what I want yet, will keep updated.
1985 FJ1100-- Atlas (SOLD)
1984 FJ1100-- Storm

Pat Conlon

The '84/85 came stock with 17/42 sprockets. IMO fine around town, but a bit buzzy on long trips.
If you wanted a bit more pep, you could go 17/44 but I would not want to ride long distances with that combo.

As Noel said, the larger the front sprocket the less stress on the chain (wider distribution of load) so a 17 is the smallest I would run on the front.
I would not recommend a 16 tooth (or smaller) front sprocket on a FJ used as a street bike.

Get 2 back sprockets, a 44 tooth for around town fun and a 38 tooth for touring.

Don't you love how I spend your money?
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

ryanschoebel

Quote from: Pat Conlon on April 29, 2018, 01:06:35 PM
The '84/85 came stock with 17/42 sprockets. IMO fine around town, but a bit buzzy on long trips.
If you wanted a bit more pep, you could go 17/44 but I would not want to ride long distances with that combo.

As Noel said, the larger the front sprocket the less stress on the chain (wider distribution of load) so a 17 is the smallest I would run on the front.
I would not recommend a 16 tooth (or smaller) front sprocket on a FJ used as a street bike.

Get 2 back sprockets, a 44 tooth for around town fun and a 38 tooth for touring.

Don't you love how I spend your money?


But accounting for what you said earlier, wouldn't i need a different size chain to run a 44 rear? I do currently have a 17/42, and would like to go 44, just to try it, but i also already ordered the 110 link chain...
1985 FJ1100-- Atlas (SOLD)
1984 FJ1100-- Storm

Pat Conlon

I seem to recall a couple of folks ran the 17/44 combo on their 110 link chains...

Why not post the question over in the modifications section?

I *think* you'll be ok, but I never tried the 17/44 combo so I'll defer to those who have.
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

ryanschoebel

UPDATE: so I'm leaving the gearing for now. My new sprocket cover also came in today. It is slightly different from what i have, but will still fit just fine i think. I also had someone come out and take a look at my welding that i need done today, and he thinks its doable, for under or around $200. Im just going to rent a trailer and take it out to his house this weekend, and he thinks we can do it in under a day. I just have to remove the alternator, carbs, side panel (if possible, and completely drain the oil. I also have to sign something that says i wont hold him liable if my engine catches fire or explodes. Bar that, we will see how it goes. PROGESS!1 :yahoo:
1985 FJ1100-- Atlas (SOLD)
1984 FJ1100-- Storm

Pat Conlon

Well allrighty....PM me your address and I'll get my DID chain tool off to you.

Sounds like you can get this squared away in time for you to join me for the ride up to Pet-the-Tuna.
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

ryanschoebel

Quote from: Pat Conlon on May 02, 2018, 10:30:47 PM

Sounds like you can get this squared away in time for you to join me for the ride up to Pet-the-Tuna.
Here's hoping!
1985 FJ1100-- Atlas (SOLD)
1984 FJ1100-- Storm

fj1289

Quote from: ryanschoebel on May 02, 2018, 09:52:15 PM
UPDATE: so I'm leaving the gearing for now. My new sprocket cover also came in today. It is slightly different from what i have, but will still fit just fine i think. I also had someone come out and take a look at my welding that i need done today, and he thinks its doable, for under or around $200. Im just going to rent a trailer and take it out to his house this weekend, and he thinks we can do it in under a day. I just have to remove the alternator, carbs, side panel (if possible, and completely drain the oil. I also have to sign something that says i wont hold him liable if my engine catches fire or explodes. Bar that, we will see how it goes. PROGESS!1 :yahoo:

Unplug your ignition module from the harness and disconnect your battery.  Don't want any high-voltage elections jumping around the ground circuits and causing trouble. 

ryanschoebel

I disconnected the battery when I removedthe starter. Should I still disconnect the ignition module?
1985 FJ1100-- Atlas (SOLD)
1984 FJ1100-- Storm

Pat Conlon

Quote from: fj1289 on May 03, 2018, 12:37:40 AM
Unplug your ignition module from the harness and disconnect your battery.  Don't want any high-voltage elections jumping around the ground circuits and causing trouble. 

Excellent advice from an expert :good: Good catch Chris!

Yes, unplug your ignition box (both plugs) be extra careful with the side lock tabs on those plugs, be gentle, that plastic is over 30 years old and quite brittle. Easy does it.
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

ribbert

Quote from: Pat Conlon on May 03, 2018, 02:00:06 AM
Quote from: fj1289 on May 03, 2018, 12:37:40 AM
Unplug your ignition module from the harness and disconnect your battery.  Don't want any high-voltage elections jumping around the ground circuits and causing trouble. 

Excellent advice from an expert :good: Good catch Chris!

Yes, unplug your ignition box (both plugs) be extra careful with the side lock tabs on those plugs, be gentle, that plastic is over 30 years old and quite brittle. Easy does it.


Given the reaction my dissenting views get here I suggest you google it, you will get your answer.

Me, I do two things for mig, place the earth clamp near the job and make sure I have a good earth. If I remember, I disconnect the battery. (Disconnecting the dozens of ecu's on more modern vehicles is not even an option)










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"

X-Ray

Hey Ryan, you are in good hands here advise wise, you can't go wrong.

If you are new to replacing/riveting chains etc, have a look here https://www.youtube.com/watch?v=6Yj4sKsguvU      Delboy has a fantastic channel on bike maintenence, and this video covers chain/sprocket replacement, but more importantly exactly how the riveting tool should be used, ( it really is quite easy).  I even watched for when I riveted my new chain recently just to make sure....... ( that I was doing it right).  Anyway good luck  :good2:
'94 FJ1200 Wet Pale Brown
'93 FJ1200 Dark Violet/Silver
'84 FJ1100 Red/White

'91 FJ1200 Dark Violet/Silver ( Now Sold)
'92 FJ1200 Project/Resto Dark Violet/Silver (Now Sold)






For photos of my rear wheel swap, heres the link  https://www.flickr.com/gp/150032671@N02/62k3KZ

Pat Conlon

We also have the instructions for the DID chain tool saved in the Misc. Files section: http://www.fjowners.com/index.php?topic=16659.0
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

fj1289

Quote from: ribbert on May 03, 2018, 07:04:46 AM
Quote from: Pat Conlon on May 03, 2018, 02:00:06 AM
Quote from: fj1289 on May 03, 2018, 12:37:40 AM
Unplug your ignition module from the harness and disconnect your battery.  Don't want any high-voltage elections jumping around the ground circuits and causing trouble. 

Excellent advice from an expert :good: Good catch Chris!

Yes, unplug your ignition box (both plugs) be extra careful with the side lock tabs on those plugs, be gentle, that plastic is over 30 years old and quite brittle. Easy does it.


Given the reaction my dissenting views get here I suggest you google it, you will get your answer.

Me, I do two things for mig, place the earth clamp near the job and make sure I have a good earth. If I remember, I disconnect the battery. (Disconnecting the dozens of ecu's on more modern vehicles is not even an option)










Noel



Noel - I agree it is probably overkill, but we also have no idea who is doing the welding, what equipment they are using, how much prep work they are doing. 

On another forum I'm on they had a guy recently fry his stand alone ECU when they did some welding on the car.  A better grounding scheme may have helped in that case. 

:drinks:

ryanschoebel

Well, i dont know much about welding, but this guy seems to know. He is using TIG though, not MIG. I drained the oil today, pulled my carbs, and tried to pull the side cover, but didnt have the tolls to do it. Ill see if he does, the day of.
1985 FJ1100-- Atlas (SOLD)
1984 FJ1100-- Storm