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SOHC.co.uk Forums => CB500/550 => Topic started by: AndyH on October 12, 2018, 10:25:20 AM

Title: CB500K1 brake bleeding question
Post by: AndyH on October 12, 2018, 10:25:20 AM

Quick Q:  when bleeding the front brake, do I need to put the rubber diaphragm back in along with the cap, each time I squeeze the lever? TIA

Title: Re: CB500K1 brake bleeding question
Post by: Johnwebley on October 12, 2018, 10:35:28 AM

No.but be careful that the spurt doesn't splash on paintwork

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Title: Re: CB500K1 brake bleeding question
Post by: AndyH on October 12, 2018, 11:06:09 AM

Quote from: Johnwebley on October 12, 2018, 10:35:28 AM

No.but be careful that the spurt doesn't splash on paintwork

Sent from my SM-G361F using Tapatalk

Yep, that was my worry John.

Title: Re: CB500K1 brake bleeding question
Post by: hairygit on October 12, 2018, 11:33:04 AM

Remove the tank is the safest option!

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Title: Re: CB500K1 brake bleeding question
Post by: K2-K6 on October 12, 2018, 01:05:04 PM

If it "spurts" alot it would indicate that the primary seal is not in good condition.

As you move the lever initially, it should firstly close off the route to the reservoir and so direct the fluid down line to the caliper.

If this first action is slow or impaired,  then the fluid starts to come back into the reservoir, giving the spurt. Also, a longer lever travel in use.

Severe wear of this makes it difficult to bleed the system as well.

Title: Re: CB500K1 brake bleeding question
Post by: Bryanj on October 12, 2018, 02:56:04 PM

But you also get a spurt when you release the lever and pressure is released via the tiny hole

Title: Re: CB500K1 brake bleeding question
Post by: AndyH on October 18, 2018, 04:16:54 AM

Thanks all for the comments/advice.  All done, and no spurt spillage!! ;D