Topic: stock cb550 exhaust and brake pedal issue.

[78 k550]

is this a K or an F you have?

Paul

[Oddjob]

Aaah but yours is fitted the other way SohRon, maybe that way allows the arm to sit a little higher. Personally I think it should be the way you have it fitted, reason being is that if the bolt locknut slips the worst that can happen is the bolt unwinds and falls out, If however it's fitted the other way it could unwind downwards due to gravity, so every time you press the brake pedal slips a little lower, you then end up with a possibility of the rear brake being on slightly without you knowing. The 500/550 rear brake drum is already known as being poor, cracking etc. Anything that has the chance of causing massive heat buildup should be avoided IMO.

[Oddjob]

is this a K or an F you have?

Paul

That's a K, the F version has different frame loops for the exhaust hangers.

[Oddjob]

Just noticed something else about your pics SohRon. Sorry for the thread hijack here BTW Jimsum. Your rear wheel spindle is fitted the wrong way round. The nut should be on the same side as the brake drum, yours has the nut on the sprocket side by the look of it. You may say that it doesn't really matter and in some respect you'd be right. However if you ever need to stand on the brake nut spanner in the tool kit to undo the wheel in the event of a puncture, your kinda buggered if it's on the left of the frame as it would unwind counterclockwise and that would put the spanner inside the exhaust system where you couldn't stand on it. It's a nothing but knowing how particular you are in getting it 100% correct I thought I'd point that out.

[goldarrow]

OP's issue is dealing with rear brake as a system

[SohRon]

Just noticed something else about your pics SohRon. Sorry for the thread hijack here BTW Jimsum. Your rear wheel spindle is fitted the wrong way round. The nut should be on the same side as the brake drum, yours has the nut on the sprocket side by the look of it. You may say that it doesn't really matter and in some respect you'd be right. However if you ever need to stand on the brake nut spanner in the tool kit to undo the wheel in the event of a puncture, your kinda buggered if it's on the left of the frame as it would unwind counterclockwise and that would put the spanner inside the exhaust system where you couldn't stand on it. It's a nothing but knowing how particular you are in getting it 100% correct I thought I'd point that out.

All of the CB550s I've seen have it installed from the brake plate side; it's how it's shown in the manual, so that's how I've installed it. Other bikes are different, I guess!

[Oddjob]

You may well be right, maybe I changed mine early on due to not having the space to stand on the spanner to undo the nut. It doesn't matter either way as the spindle doesn't need to come out to remove the rear wheel due to the quick release system used on the 500/550K. Nothing worse than not being able to undo the rear spindle when your on a ride and need to fix a puncture, even had a mate who used a scaffolding pole just for extra leverage his spindle nut was so tight.

[SohRon]

You may well be right, maybe I changed mine early on due to not having the space to stand on the spanner to undo the nut. It doesn't matter either way as the spindle doesn't need to come out to remove the rear wheel due to the quick release system used on the 500/550K. Nothing worse than not being able to undo the rear spindle when your on a ride and need to fix a puncture, even had a mate who used a scaffolding pole just for extra leverage his spindle nut was so tight.

I agree that it probably doesn't really matter, and I think you have a valid point re: wheel removal, but I have to go by the book, and this is how it's oriented there. Thanks for the tip!

[Jimsun]

Have the brackets been off the exhausts for some reason? trying to find out whether there's a possibility that the wrong bracket has been fitted, if they haven't been off then it's clearly a mispositioning issue.

I cleaned the pipes and marked the bracket. I never worked on both bracket at once to avoid confusion.

are you sure you have the correct brake pedal?

I never took my brake pedaliff the bike. The only thing that came off was
Both wheel
Fork
Tank
Seat
Fenders
Handle bar
Pipes

might be a good idea to first pull the offending pipe back off again and check there's nothing stopping it from seating squarely against the head like a deformed copper gasket or something?

Thanks. I did this already. I cleaned those first.



Here is the video.

http://youtu.be/9N6Nkpi0-Ms


Even if i tightened the adjusting nut, it will still hit the pipe. I have it adjusted at a point where the rear wheel isn't dragging

[goldarrow]

Pull your rear wheel back, readjust the chain, that should solve your issue

[LesterPiglet]

All of the CB550s I've seen have it installed from the brake plate side; it's how it's shown in the manual, so that's how I've installed it. Other bikes are different, I guess!

F models are installed with the nut on the brake side due to being a closed swinging arm and the 4-1 exhaust.

[Jimsun]

Pull your rear wheel back, readjust the chain, that should solve your issue

taht will be toooooo tight