46 BMW 1983 R80ST Remove Center Stand, Crash Bars and Side Stand

I’m ready to remove the center stand so I can put the bike on my portable lift to do the rest of the disassembly with the bike supported on the lift. I put the bike on the side stand while I remove the center stand.

Bike On Side Stand Ready To Remove The Center Stand

Bike On Side Stand Ready To Remove The Center Stand

Tools

I use a pair of C-Clip pliers to remove the C-Clip securing the side stand pivot pin in the left crash bar.

Snap Ring and Snap Ring Pliers

Snap Ring and Snap Ring Pliers

Remove Center Stand

The center stand is secured with an Allen head pivot bolt inside a bushing that fits in a hole on a tab on the bottom of the frame.  I start by removing the center stand springs with the center stand fully retracted.

NOTE:
I show the center stand extended in some of the following pictures for ease of picture taking and clarity. But I remove the center stand with it fully retracted as that puts the least amount of tension on the center stand springs so they are easier to remove.

Although I removed the nuts on the pivot bolt before removing the center stand springs, it is easier if you remove the springs first. So I show the order of disassembly starting with removing the center stand springs.

The center stand springs are relaxed when the center stand is retracted which is why I remove the springs with the bike on the side stand. I use a pair of vice grips to grab the spring and push it enough to get the hook past the tab on the center stand. The spring has a long and short leg. The long leg hooks into a hole on the frame.

Center Stand Return Spring Fully Extended

Center Stand Return Spring Fully Extended With Short Leg Attached To Center Stand

Vice Grips Used To Remove Center Stand Spring With Center Stand Retracted

Vice Grips Used To Remove Center Stand Spring With Center Stand Retracted

There is a locking nut on the outside of the center stand pivot bolt so the Allen head is on the inside next to the oil pan. There is not enough clearance to fit a standard Allen wrench so I use a cut off 8 mm Allen wrench to fit center stand frame bracket and the oil pan.

Locking Nut On Center Stand Pivot Bolt. The Long Leg Of Center Stand Return Spring Hooks To The Frame

Locking Nut On Center Stand Pivot Bolt. The Long Leg Of Center Stand Return Spring Hooks To The Frame

Cut Down 8 mm Allen Wrench For Removing Center Stand Pivot Bolt

Cut Down 8 mm Allen Wrench For Removing Center Stand Pivot Bolt

Tight Fit For Allen Wrench On Center Stand Pivot Bolt

Tight Fit For Allen Wrench On Center Stand Pivot Bolt

Removing Center Stand Pivot Bolt

Removing Center Stand Locking Nut

Center Stand Pivot Bolt Locking Nut

Center Stand Pivot Bolt Locking Nut

The bolt won’t push out of the hole as it interferes with the oil pan. But when you remove the bushing in the center stand pivot bolt hole, the bolt can tip down enough in the hole to go past the pan. I use a small blade screwdriver to get the bushing out of the hole in the center stand.

Use Small Blade Screwdriver To Remove Center Stand Bushing

Use Small Blade Screwdriver To Remove Center Stand Bushing

Center Stand Bushing Removed To Allow Bolt To Tilt Down So It Will Slide Past The Oil Pan

Center Stand Bushing Removed To Allow Bolt To Tilt Down So It Will Slide Past The Oil Pan

Center Stand Hardware Details

Center Stand Hardware Details

This is the center stand and its mounting hardware. The bottom of the left leg has worn through and I’ll get a patch welded on it to extend its life.

Center Stand Hardware Details

Center Stand Hardware Details

Remove Crash Bars & Side Stand

The right side crash bar was removed from the bike when I got it. The left side crash bar is still attached and includes the side stand. Both crash bars mount the same way with the same hardware.

Right Front View-Crash Bar Missing

Right Front View-Crash Bar Missing

Right Crash Bar Had Been Removed-Mounts The Same As Left Side

Right Crash Bar Had Been Removed. It Mounts The Same As the Left Side

Left Crash Bar Attached

Left Crash Bar Attached

Next, I put the bike on my portable lift and secure it with tie downs. I put a board on the lift so it’s under the oil pan to distribute the load uniformly on the oil pan. I strap it down so it’s snug on the lift, but I don’t use ratchet straps as they create too much force and I don’t want to damage the oil pan.

Portable Motorcycle Lift With Board Across Feet

Portable Motorcycle Lift With Board Across Legs

Positioning Portable Lift Under Oil Pan

Positioning Portable Lift Under Oil Pan So Wood Is Between The Lift And The Oil Pan

Bike Secured To Portable Lift With Straps

Bike Secured To Portable Lift With Tie Down Straps, Not Ratchet Straps.

The left crash bar is secured to the frame tubes with an upper and lower bracket and to the front engine mount stud.

Upper Crash Bar Bracket Goes Around Frame Tube

Upper Crash Bar Bracket Goes Around Frame Tube

Lower Crash Bar Bracket Goes Around Frame Tube The Same As Upper Bracket

Lower Crash Bar Bracket Goes Around Frame Tube The Same As Upper Bracket

Bottom Of Crash Bar Is Secured By Front Engine Mount Stud

Bottom Of Crash Bar Is Secured By Front Engine Mount Stud

The side stand is attached to the bottom of the left crash bar with a pivot pin through a hole in the crash bar and side stand.

Side Stand Attaches To Bottom Of Left Crash Bar

Side Stand Attaches To Bottom Of Left Crash Bar

I start by removing the side stand springs and spring plate. The side stand springs are secured to a plate that attaches to a pivot pin on the crash bar on one end and to pins cast into the side stand leg on the other end. The ends of the spring are reversed from each other on each end.

Side Stand Spring Plate Detail

Side Stand Spring Plate Detail

Side Stand Spring Orientation On Pins Of Side Stand-Opposite To Each Other

Side Stand Spring Orientation On Pins Of Side Stand Are Opposite To Each Other

Side Stand Spring Orientation In Spring Plate Are Opposite To Each Other

Side Stand Spring Orientation In Spring Plate Are Opposite To Each Other

I use a pair of vice grips to remove the springs from the side stand legs and then remove the spring plate from the pivot pin on the crash bar.

Use Small Vice Grips To Remove Side Stand Speing

Use Small Vice Grips To Remove Side Stand Speing

Side Stand Springs Orientation In Spring Plate

Side Stand Spring Ends Orientation In Spring Plate

Bottom Side Stand Spring Removed

Bottom Side Stand Spring Removed

Side Stand Spring Plate Mounts To Pin On Crash Bar

Side Stand Spring Plate Mounts To Pin On Crash Bar

Side Stand Spring Plate

Side Stand Spring Plate

Side Stand Spring Hardware Detail

Side Stand Spring Hardware Detail

Next, I remove the crash bar top bracket, bottom bracket and then the nut on the front engine mount stud to remove the crash bar and side stand. The top and bottom bracket have a nut the secures the strap around the frame tube and a bolt that screws into the end of the crash bar tube to secure the other end of the strap to the crash bar. The end bolt in the top bracket is missing. The top and bottom brackets are the same.

Removing Upper Crash Bar Bracket Nut

Removing Upper Crash Bar Bracket Locking Nut

Crash Bar Upper Bracket Hardware Detail-Missing End Bolt

Crash Bar Upper Bracket Hardware Detail-It’s Missing The End Bolt

Removing Crash Bar Upper Bracket Nut

Removing Crash Bar Upper Bracket Locking Nut

Crash Bar Bracket Hardware Detail

Crash Bar Bracket Hardware Detail

Crash Bar Bracket End Bolt Screws Into End Of Crash Bar

Crash Bar Bracket End Bolt Screws Into End Of Crash Bar

Removing Crash Bar Bracket End Bolt With Box Wrench

Removing Crash Bar Bracket End Bolt With Box Wrench

Crash Bar End Bolt Hardware Detail

Crash Bar End Bolt Hardware Detail

Crash Bar Bracket Hardware Detail

Crash Bar Bracket Hardware Detail

Removing Front Engine Stud Nut

Removing Front Engine Mount Stud Nut

Front Engine Mounting Stud Hardware Detail

Front Engine Mount Stud Hardware Detail

With the left crash bar and side stand removed, I’m ready to remove the side stand from the crash bar. It fits in the bottom of the crash bar and is secured with a pivot pin.

Left Crash Bar With Side Stand Removed

Left Crash Bar With Side Stand Removed

Side Stand Mounting Detail In Left Crash Bar

Side Stand Mounting Detail In Left Crash Bar

The pivot pin has a C-Clip on each end. I use my C-Clip pliers to remove the rear C-Clip because I didn’t see the front C-Clip at first as it was coated in oil and grease.

C-Clip On Front End Of Side Stand Pivot Pin

C-Clip On Front End Of Side Stand Pivot Pin

Side Stand Pivot Pin Rear C-Clip

Side Stand Pivot Pin Rear C-Clip

Removing Side Stand Pivot Pin C-Clip

Removing Side Stand Pivot Pin C-Clip With Special Pliers

Side Stand Pivot Pin C-Clip Removed

Side Stand Pivot Pin C-Clip Removed

I use a socket wrench extension as a drift and drive the pin out from the rear with a plastic mallet.

NOTE:
There is a grease fitting on the side stand so you can grease the pivot pin.

Driving Side Stank Pivot Pin Out Of Bushing

Driving Side Stank Pivot Pin Out Of Bushing

Driving Side Stank Pivot Pin Out Of Bushing

Driving Side Stank Pivot Pin Out Of Bushing

Side Stand Pivot Pin Removed

Side Stand Pivot Pin Removed

Side Stand Pivot Pin

Side Stand Pivot Pin. Note Grease Fitting On Side Stand Next To Pivot Pin

Here is the side side and left crash bar after removing them.

Side Stand Hardware Detail

Side Stand Hardware Detail

 

Left Crash Bar Removed

Left Crash Bar Removed

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.