Rz350 ypvs frontbrake problem

General forum on frames, brakes, suspension, wheels and tires

Moderator: rztom

Post Reply
Message
Author
User avatar
Jimmye
Posts: 14
Joined: Sun Jul 11, 2010 2:50 pm
Location: Sweden-Norrkoping

Rz350 ypvs frontbrake problem

#1 Post by Jimmye » Fri Nov 18, 2016 10:57 am

Hey all! Have problems with bleeding my front brakes. It looks like I got out all the air but still spongy brake. No leaks in the system.
Any suggestions? :smt026
/Jim from Sweden
Future setup on my RD 350 1984 RD350LC2 YPVS:
Mick abbey steel pipes with carbon fiber silencers
Keihin pwk 28mm carburetors
Modified airbox
Lightened flywheel
Zeeltronic ignition
Ported engine block
TSS ypvs valves
Wossner 65mm pistons
Welded crank

RuZty
-----
-----
Posts: 3584
Joined: Fri Oct 03, 2003 11:11 pm
Location: Southern Ontario, Canada

Re: Rz350 ypvs frontbrake problem

#2 Post by RuZty » Fri Nov 18, 2016 3:04 pm

It is hard to get all of the air out of the master cylinder. I've always removed it from the bar and tilted it to allow the air to escape to the reservoir. Others have recommended tying the lever back against the bar overnight, but I haven't tried it myself.

hondaror
Posts: 2828
Joined: Mon Mar 03, 2014 8:44 pm
Location: Alberta, Canada

Re: Rz350 ypvs frontbrake problem

#3 Post by hondaror » Sat Nov 19, 2016 12:49 am

Have you cracked all the banjo bolts in the system to bleed them? Have to ask that.
Rory
2 1984 RZ350s
1985 RZ350
9 1986-1990 RZ350s
2000 ST2
2005 749
2005 749 with 999 engine

User avatar
two-stroke-brit
-----
-----
Posts: 1701
Joined: Fri Nov 22, 2013 10:49 pm
Location: Houston texas

Re: Rz350 ypvs frontbrake problem

#4 Post by two-stroke-brit » Sat Nov 19, 2016 1:17 pm

the mityvac makes it a lot easier on your own.
350LC,Athena 392 big bore,stock porting,swiss cheese air box,stock reeds,spec11 pipes.(now TSA big bore pipes)
She might not be pretty but she will always be a fun ride


1982 YAMA RD350LC
98KDX 220R
1967 TRIUMPH TIGER
2001 TRIUMPH TT600

whyzee79
Posts: 99
Joined: Tue Jul 23, 2013 2:16 pm

Re: Rz350 ypvs frontbrake problem

#5 Post by whyzee79 » Sat Nov 19, 2016 1:56 pm

Rubber band the lever tight overnight and then check.

Post Reply