750 spectre

84rotary · 10-08-2008

hey guys im new around here, i just picked up a 82 spectre 750 and im having front brake issues, i actually need to rebuild the masterf cylinder, but i was wondering if its safe to use dot 5 in there when i put it all back together?

StarGate · 10-09-2008

Dot 3 or 4.

Ericthejet · 10-09-2008

I don't think DOT 5 was a spec. back in 1982.
No gains by using the higher spec., use what is specified on the fluid rez. cap.

coppertales · 10-09-2008

drain, fill and bleed your rear brake system while you are at it......chris3

Jebysan · 10-09-2008

Just out of curiosity what makes you think that you need to rebuild the front master cylinder ? have you tried just bleeding the brakes ? what are the symptoms your having with your brakes ? not grabbing hard enough ? not grabbing at all ? seized on the rotor ? just putting that out their because i had brake issues and thought i had to rebuild the master but all i had to do was flush and bleed.

Nessism · 10-10-2008

If the brake fluid is dark, or has sludge in it, the only way to properly restore the system is to do a complete system teardown - master, calipers and replace the lines. The brake system will accumulate sludge on the inside unless the fluid has been changed regularly throughout the life of the bike and the only way to get the system properly clean is to do a full tear down. Pumping fluid through is false security - and residue inside the system will quickly contaminate your clean fluid.

Best to do the job right the first time.

10-08-2008	#1 (permalink)
84rotary Newbie Join Date: Oct 2008 Posts: 1	750 spectre hey guys im new around here, i just picked up a 82 spectre 750 and im having front brake issues, i actually need to rebuild the masterf cylinder, but i was wondering if its safe to use dot 5 in there when i put it all back together?

10-09-2008	#2 (permalink)
StarGate Navy Vet S.A.R. crew BTK Expert Join Date: Apr 2007 Location: NE Arkansas Posts: 5,030	Dot 3 or 4. __________________ Mike Original Owner 1981 KZ1000-K1 LTD 2000 Suzuki King Quad Photos

10-09-2008	#3 (permalink)
Ericthejet Forensic Bug Splatter Analyst BTK Expert Join Date: Apr 2006 Location: The northeast! Posts: 1,705	I don't think DOT 5 was a spec. back in 1982. No gains by using the higher spec., use what is specified on the fluid rez. cap. __________________ 1984 Ninja 900 (A1) To make it go faster I need to add more lightness!

10-09-2008	#4 (permalink)
coppertales Uncle Bob's Love Child BTK Expert Join Date: Mar 2007 Posts: 283	You should be ok.... drain, fill and bleed your rear brake system while you are at it......chris3

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10-09-2008	#5 (permalink)
Jebysan FNG BTK Beginner Join Date: May 2008 Location: Oshawa, Ont Posts: 50	Just out of curiosity what makes you think that you need to rebuild the front master cylinder ? have you tried just bleeding the brakes ? what are the symptoms your having with your brakes ? not grabbing hard enough ? not grabbing at all ? seized on the rotor ? just putting that out their because i had brake issues and thought i had to rebuild the master but all i had to do was flush and bleed.

10-10-2008	#6 (permalink)
Nessism Third Gear And Gaining BTK Intermediate Join Date: Sep 2006 Posts: 132	If the brake fluid is dark, or has sludge in it, the only way to properly restore the system is to do a complete system teardown - master, calipers and replace the lines. The brake system will accumulate sludge on the inside unless the fluid has been changed regularly throughout the life of the bike and the only way to get the system properly clean is to do a full tear down. Pumping fluid through is false security - and residue inside the system will quickly contaminate your clean fluid. Best to do the job right the first time.

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