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Mi Brakes

Started by homerfj1100, March 09, 2016, 04:58:47 PM

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homerfj1100

I finally got down to fixing the crap front brakes on my 84/85 FJ11 and the solution gave me a surprise. 2 finger stopping. I've had some blue spots for a few years and could not be bothered with the expense of a front end swap for FJ12 forks. Hassle and you end up throwing away a set of good forks.
So I found some adapters for a VMax. Still, I bought them but was a wuss. Bought a few yards of braided hose. Guessed the banjo fitments. Really. Guessed. And they fitted. With a few problems that I eventually fixed. Not sure how I post pics but will if you wish. Ta. Tony
Homerfj1100

FJmonkey

Looking polished and cleaned, 2 finger braking means it performs as well as it looks.
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

aviationfred

Looks great.... :good2:


Fred
I'm not the fastest FJ rider, I am 'half-fast', the fastest slow guy....

Current
2023 Moto Morini X-Cape 650
2008 VFR800 RC46 Vtec
1996 VFR750 RC36/2
1990 FJ1200 (1297cc) Casper
1990 VFR750 RC36/1 Minnie
1989 FJ1200 Streetfighter
1985 VF500F RC31 Interceptor

krusty

Did you check that the disc contacts all of the pad faces? I did a FJ12 front swap using the 4 pot FJ calipers but retaining the 16" wheel and found that I needed Vmax discs which are about 10mm bigger in diam.
91 FJ1200
84 FJ1100 x 2
85 FJ1100
89 GL1500
76 CB750F1
72 CB350F
63 C92 x 2
59 C76
62 C100
63 C100
60 Colleda 250TA x 3
63 Suzuki MD50
77 DT125E
77 DT175E x 2
79 DT250F

giantkiller

It does look like it's only using the outside half of the disc. Looking at the rub marks on the disc.
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

the fan

I'd like to see a straight on photo. From this angle it does not look like the caliper is properly aligned with the rotor and the pads are not getting full engagement. I may simply be an optical illusion, but it sure looks off in this pic.

rktmanfj

Quote from: the fan on March 10, 2016, 11:35:00 AM
I'd like to see a straight on photo. From this angle it does not look like the caliper is properly aligned with the rotor and the pads are not getting full engagement. I may simply be an optical illusion, but it sure looks off in this pic.



[edit] After looking at other pics online, one had the note: "You will also need to fit the 298mm flosting discs as fitted '93-'07, (as the original '85-'92 discs are too small)."
How big are the early FJ rotors?    :pardon:



Randy T
Indy

Blessed be the LORD my strength, which teacheth my hands to war, and my fingers to fight.
Psalms 144:1

'89 FJ1200
'90 FJ1200
'78 XT500
'88 XT350


Pat Conlon

Good catch. Early FJ vented rotors were 282mm OD
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

Nice, but the brake lines for the anti-dive should be routed on the inside of the fork legs  :good:
1985 - Yamaha FJ1100 36Y
1978 - Yamaha SR500
1983 - Kawasaki GPZ550 (sold)
1977 - Kawasaki Z400 (sold)

krusty

Quote from: krusty on March 09, 2016, 10:37:44 PM
Did you check that the disc contacts all of the pad faces? I did a FJ12 front swap using the 4 pot FJ calipers but retaining the 16" wheel and found that I needed Vmax discs which are about 10mm bigger in diam.

These are the ones I fitted. They're working great.
http://www.ebay.com.au/itm/2x-Front-Brake-Discs-Rotor-Fits-Yamaha-VMX-12-V-Max-1993-2007-VMX-1200-VMax-XVZ-/291397891981?hash=item43d8aaf78d:g:jVYAAOSwPhdU9r78
91 FJ1200
84 FJ1100 x 2
85 FJ1100
89 GL1500
76 CB750F1
72 CB350F
63 C92 x 2
59 C76
62 C100
63 C100
60 Colleda 250TA x 3
63 Suzuki MD50
77 DT125E
77 DT175E x 2
79 DT250F

CutterBill

If someone will bring me their early FJ, or at least the entire fork/wheel assembly, and some blue dot calipers, I can machine some proper adaptors in my shop. 
Bill
Never Slow Down, Never Grow Old.

Current Stable:                                                     
FJ1100                                              
FJ1200 (4)
1999 Yamaha WR400 (street-legal)
2015 Super Tenere
2002 Honda Goldwing

FJmonkey

Quote from: CutterBill on March 13, 2016, 10:20:42 AM
If someone will bring me their early FJ, or at least the entire fork/wheel assembly, and some blue dot calipers, I can machine some proper adaptors in my shop. 
Bill
I can bring '86 forks and wheel, the Blue dots you will need source on your own. The salvage value of the metal might be worth it...
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

CutterBill

Quote from: FJmonkey on March 13, 2016, 10:40:50 AM
I can bring '86 forks and wheel, the Blue dots you will need source on your own....
I don't need blue dot calipers for my bike.  At least, I don't think I do.

Guess I should have said... if someone brings me forks and calipers, I can make adaptors for anyone who needs them.
Never Slow Down, Never Grow Old.

Current Stable:                                                     
FJ1100                                              
FJ1200 (4)
1999 Yamaha WR400 (street-legal)
2015 Super Tenere
2002 Honda Goldwing