Rookie brake bleeding question.
- Fatherof2
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Rookie brake bleeding question.
Hi Gang,
I have a real rookie brake bleeding question.
I bleed my brakes, and when I hit the pedal the pads pressed up against the rotor, but they wont return. They remain pressed against the rotor.
What should I do?
Thanks for any help,
David
I have a real rookie brake bleeding question.
I bleed my brakes, and when I hit the pedal the pads pressed up against the rotor, but they wont return. They remain pressed against the rotor.
What should I do?
Thanks for any help,
David
- SS109
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They're supposed to! Well, actually they will release just a bit but not enough to really notice visually. As long as the front wheel rolls you are good.
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Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
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AZ State Parks & Trails OHV Ambassador - Trail Riders of Southern AZ
Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
'11 GasGas EC250R
- Fatherof2
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- SS109
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It should just be very lightly touching the rotor. If you can feel drag when turning by hand then something is wrong.
Youtube Channel: WildAzzRacing
AZ State Parks & Trails OHV Ambassador - Trail Riders of Southern AZ
Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
'11 GasGas EC250R
AZ State Parks & Trails OHV Ambassador - Trail Riders of Southern AZ
Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
'11 GasGas EC250R
- SS109
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Does it feel like it is holding back the wheel from rotating? If not, you are good.
Youtube Channel: WildAzzRacing
AZ State Parks & Trails OHV Ambassador - Trail Riders of Southern AZ
Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
'11 GasGas EC250R
AZ State Parks & Trails OHV Ambassador - Trail Riders of Southern AZ
Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
'11 GasGas EC250R
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Normal. Because of the limited "power" available on a bicycle, I assume their brake systems actually pull the pads away from the discs a little bit. On a motorcycle, the hydraulic pressure is released, but there is no spring or other mechanism to pull the pads away from the disc. They simply stay right where they are, with no pressure on them, rubbing lightly on the disc. If there were a spring to pull them back (or push the caliper piston back), the first step on the lever would be "dead", meaning that the pedal would simply push all the way down, until the pads contacted the disc again, and then you would have to take another bite with the pedal. A similar thing happens when you bend a disc. The bend pushes the pads back, and you end up with a lot of lever or pedal play.
2004 Dual Sported KDX200
1999 Ninja 250 (Daughter's)
1996 DR 650 (stock, mostly street use)
1999 Ninja 250 (Daughter's)
1996 DR 650 (stock, mostly street use)
- scheckaet
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if you keep having problem, replace the pin, they get worn a little and you usually can't tell. I was trashing pads every ride then I replaced the pin, no more problem after.
02 KX 200 hybrid: RB head and carb
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Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
- Fatherof2
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- scheckaet
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BTW I was talking about the pins that holds the brake pad (NO grease) not the pin that holds the caliper together (the one going into the rubber piece filled with grease)
02 KX 200 hybrid: RB head and carb
Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
Sold ☹ DRZ 400 SM
bike build: http://www.kdxrider.net/forums/viewtopi ... ike+stable
bike profile http://www.kdxrider.net/forums/viewtopi ... 0709#30709
newb info: http://www.kdxrider.net/forums/viewtopi ... 57#p117919
jetting guide: http://www.kdxrider.net/forums/viewtopi ... 105&t=1156
- Fatherof2
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Often, people do not realize just how critically sized the caliper volume, the brake hose length, and the master cylinder volume (or piston diameter/stroke) have to be to have a system that works well. If you were to change any one of these components with another, say, from another machine, the entire sytem balance can easily be upset, and you end up chasing the problem down the line. I have seen this happen several times on street bikes.
This is why something as simple as a braided hose, or a slightly bent disc can make a huge difference in feel at the lever.
This is why something as simple as a braided hose, or a slightly bent disc can make a huge difference in feel at the lever.
2004 Dual Sported KDX200
1999 Ninja 250 (Daughter's)
1996 DR 650 (stock, mostly street use)
1999 Ninja 250 (Daughter's)
1996 DR 650 (stock, mostly street use)
- Mr. Wibbens
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I was worried about that during my fork swap
E series has just a single piston caliper, while the H has a twin. Plus the H hose is longer
But thankfully it all works fine
E series has just a single piston caliper, while the H has a twin. Plus the H hose is longer
But thankfully it all works fine
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FIVE OUT OF FOUR PEOPLE DONUT UNDERSTAND FRACTIONS
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- SS109
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Same here. H series caliper with E series M/C and hose. Works great!Mr. Wibbens wrote:I was worried about that during my fork swap
E series has just a single piston caliper, while the H has a twin. Plus the H hose is longer
But thankfully it all works fine
Youtube Channel: WildAzzRacing
AZ State Parks & Trails OHV Ambassador - Trail Riders of Southern AZ
Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
'11 GasGas EC250R
AZ State Parks & Trails OHV Ambassador - Trail Riders of Southern AZ
Current KDX: '98 KDX220
Old KDX: '90 KDX200 -White/Blue
'11 GasGas EC250R
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I am glad to hear that swap works well for our bikes. The volume of the larger diameter E series single caliper piston is most likely very close to the volume of the 2 smaller pistons/bores of the H series caliper.
2004 Dual Sported KDX200
1999 Ninja 250 (Daughter's)
1996 DR 650 (stock, mostly street use)
1999 Ninja 250 (Daughter's)
1996 DR 650 (stock, mostly street use)