Larin Lifting Jack Adaptors:

I have a 2000 Spirit and bought the jack from Sam’s club for $100 figuring I could make it work.  Well, after a few beers and some tinkering I did make the jack work to my satisfaction.  Once I got the bike up on the jack it sat pretty solid provided you don’t try get on it or let your kids climb all over it!  It does not rock from side to side but, if you’re not changing tires, with blocking under the wheels will allow you to do most anything you want.  Since the lifting channels are only about 13” apart, it will rock a little from back to front but not enough to knock the bike off during cleaning and maintenance.  Oil changes will also be a bit messy since the oil will run all over the jack. However, the manual recommends changing the oil on the sidestand, anyway. The drain plug is not situated where you can get a pan under it, so I will do those with the bike on the side stand.  The problem is that the engine hangs about 2” below the frame pipes (which the jack will lift on) and to get the jack under the bike you will first have to roll the front and rear wheel onto a couple of  ¾” boards (I cut a couple of scrap pieces into 12” squares for this) and place a 3” block under the side stand.  The bike will be almost vertical but sits surprisingly steady.  This will provide the clearance to slide the jack under the bike from the front.  I can’t see any jack fitting under the bike when it is on the floor and side stand, there just isn’t clearance to fit the jack with the lifting posts under the bike.

Now to the mods.  First thing you need to do is take off the rubber pads.  I cut them up later to glue onto the blocks to protect the frame.  Also, you have to knock off the round bars at the end of the lifting channels.  I used a cold chisel and hammer and made short work of it.  These things were not welded on by nuclear power vessel welders so they come off easy!!  Remember, don’t force it, get a bigger hammer.  Next I made the lifting blocks to fit on each end of the channels.  (You’ll have to take off the channel assembly since you will have to drill holes in the ends and countersink on the underside to fit the bolts.)  The blocks have to be at least 2-1/4” high so you clear the engine when lifting.  I used three pieces of scrap hardwood each ¾” thick x 1-1/2” wide x 2-1/2” long and glued them together to make each block.  As a precaution, I taped the blocks onto the lifting channels in the right position and manually fitted the assembly under the bike and made final adjustments to their positions so they would hit the bike frame exactly where they are supposed to.  Critical dimensions are the blocks have to be minimum 2-1/4” high (plus the rubber pad) and at the front of the bike must be 10” apart to clear the engine and hose.  At the back I made them 9-3/4” apart.  Measure from center line.   C-clamp the blocks in position and drill two holes for 1/8’ machine bolts (use beveled head) to hold the block onto the channel.  You must countersink the top of the block for the nut and the underside of the channel for the head of the bolt.  2-1/2” bolts fit nicely and you can file off any protrusions.  Cut four rubber pads to size and glue to the top of the blocks.  One note, I did not countersink the bolt head enough so I had to grind off the corner of the 1-1/2” square tube member so it would clear the bolt heads.  For comfort, I screwed a thin metal plate to the outside of each block, extending about ½” above each block to align the jack and prevent the bike slipping of the jack sideways.  You’ll have to leave off the one on the block that slides under the side stand as it won’t clear.  You can make one that can be installed after the jack is in place if you think you need it.  I have made some crude drawings of the assembly to help clarify the picture.

This is a real jury-rigged setup, but it works and cost me only $1.50 for the bolts.  I could have had our machine shop at work make me a fancy metal one, but I wanted to do it with stuff most of us have at home or can pick up in a scrap bin at the local lumber yard.


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