1982 seca 750 possibly missing passenger side brake line?

I know passenger side is actually the back for the funny guys. About to change the front bearings and was doing a quick video for progress documentation When I noticed that the right hand brake line ended at the caliper while the left continues to the axle/ bottom fork of fork.
I've been car wrenching all day so no energy left to search forum or book for answers. Please hand feed me the obvious reason why this is and what these things are called. Also wanted to know if the nipples are for greasing axles and calipers although the answer is almost definitely yes.
Words of encouragement are also welcome as I want to get this done so I can yamahave some time to ride tonight.

 

Are you referring to the bleeder screws and thinking they are for greasing? There is no grease applied to calipers in any area and the wheel must be removed for greasing the axles bearings. Typically, these are closed bearings (shielded) and can not be greased without removal. Then, they get destroyed in the process (typically). Please do not put grease in those "Nipples".

I have no first-hand knowledge of the SECA 750 brake/fork system. Hopefully a more knowledgeable person will provide input on that. It APPEARS to be an anti-dive system linked to the fork and it would APPREAR someone removed it on the right side. Again, let's hope a knowledgeable person chimes in.

KURT

 

The Seca 750 has a fork anti-dive system. You are indeed missing one of the brake lines for that system.

I suggest a few things.

1. Don't touch a thing yet. You have some learning to do.
2. Buy a service manual.
3. Read both it and The Information Overload Hour front-to back, and then back-to-front, then you can start recomissioning your motorcycle.

You will not be riding that motorcycle tonight. It is in dire need of servicing.
Those brake lines are over 30 years old (service life is 4 years), and are indicitave of a machine that has not been cared for well enough to trust your life with.

 

The units at the bottom of the forks are the anti-dive units. When front brakes are applied, pressure in the brake line closes a valve and restricts oil flow in the forks through the anti-dive unit and thus slightly stiffens the fork.



The short missing line from the caliper to the anti-dive unit will not prevent braking. It is not recommended to operate only one side of the anti dive (assuming the left one is even working) as it could lead to uneven dampening between the two forks and unstable handling.

Those nipples are not grease fittings. They are bleeder screws for getting air out of the brake lines through the anti-dive units; just like on the brake calipers.

 

This how-to gives you a look inside of the forks.
Doing the 750 Seca's Forks.. (Rebuild.. now a HOW TO!)
You will want to do a full teardown and inspection as part of geing the machine reliable and road worthy.

 

Very informative responses. Thanks for the diagram Dadoseven and the information overload is always appreciated K-moe. When I posted I knew that was going to be part of someones response. I put the tools down for the night to recoup and research. Now I remember seeing that those fittings were for air bleeding. They look pretty similar to greaseable suspension fittings but I've seen these on truck fuel lines that need priming. While I'm eager to get this thing on the road it has definitely taught me a new level of patience. I was gonna go through the front brakes while I had the wheel off anyways. And I planned on taking off the pipes to do an oil change so I can go even deeper. Might roll her outside so she can see the weather were missing.

 

Agree with Kmoe DO NOT RIDE until you fix this right. Go to upper right corner at top of the page to xj4ever he will have all the parts you need. I rebuilt forks and upgraded to braided steel hoses and did FULL rebuild of both brake calipers . Xj4ever sells all these parts and are the CORRECT parts . Saftey is nothing to take short cuts or get cheap on. Remember YOUR life depends on this, what ever you do , DO NOT buy used brake hoses .Cheers

 

I have a lot of parts if you need anything - shoot me a message if you do.