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rear brake master cylinder replacement alternative

Started by giantkiller, May 02, 2013, 09:14:31 PM

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giantkiller

I need a rear brake master cylinder. Or rebuild. I would like to put a new one on instead of fixing old. So I looked for a new one. One for a raptor 700 came up for $46. It looks just like the fj master. So I go out and compared my old fj master to the one on my raptor 700 they appear to be exactly the same. Same mounting,same outlet, even looks the same length push rod only difference I could see (other than the silver color). Is the part that screws onto the push rod.

So new OEM yamaha rear brake master for $46. Here I come.
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

fj11.5

Often wondered if the later ones would fit, great info mate :good2:
unless you ride bikes, I mean really ride bikes, then you just won't get it

84 Fj1100  effie , with mods
( 88 ) Fj 1200  fairly standard , + blue spots
84 Fj1100 absolutely stock standard, now more stock , fitted with Fj12 twin system , no rusted headers for this felicity jayne

Pat Conlon

Dan, PM me your address, I have a couple rear m/c's in my parts bin...I'll send you one.
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

racerrad8

The most important thing that must match is the piston/bore size.

Usually the bore size is somewhere on the external of the cylinder.

I just checked the part numbers and it shows for FJ 84-92 only.

I know the 93 master cylinder is different.

I do stock both of the Yamaha rebuild kits.

Randy - RPM
Randy - RPM

FJmonkey

Quote from: racerrad8 on May 02, 2013, 10:13:19 PM
The most important thing that must match is the piston/bore size.

Usually the bore size is somewhere on the external of the cylinder.

Randy - RPM

Over achiever...
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

racerrad8

Quote from: FJmonkey on May 02, 2013, 10:14:59 PM
Over achiever...

Just trying to keep him safe...bigger or smaller might mean no brakes...

Randy - RPM
Randy - RPM

FJmonkey

Quote from: racerrad8 on May 02, 2013, 10:21:05 PM
Quote from: FJmonkey on May 02, 2013, 10:14:59 PM
Over achiever...

Just trying to keep him safe...bigger or smaller might mean no brakes...

Randy - RPM
Great!! Now size matters....
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

giantkiller

Thanks Randy didn't think about bore size.

Thanks Pat sent you a pm. If you have a spare. That would be great.
let me know how much for shipping
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

Pat Conlon

Ok, I got your PM.
What I have is a Brembo  1/2" m/c. The unit will fit, everything lines up, however unlike the FJ m/c which has a threaded holes for the mount bolts, the Brembo has smooth mount holes. You will need to thru bolt it. Some stainless cap head bolts on the inside face and stainless acorn nuts on the outside would look fine.

Still want 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

giantkiller

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

Pat Conlon

Ok, off tomorrow to UPS. You can buy me a cup of joe when we meet. Cheers!
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

giantkiller

Pat you are great, I was hoping to meet everybody at the WCR but had to cancel. Due to nephews wedding on the same weekend as the rally. If I don't show up my family will disown me. Hopefully I'll make it next year.
Thanks again
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

giantkiller

Hey Pat I keep forgetting to tell you thanks for the rear master cylinder! It looks great.  I did check the master cylinder on the 700 raptor I have. It's 1/2"also so it will work as a cheap oem replacement.
Thanks again
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

Pat Conlon

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