GL1500 shift shaft stabilizer mod. No drilling.


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peppilepew
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2012 GL1800 Level 3

GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Wed Apr 10, 2013 9:50 am



I was poking around checking out some of the ingenious solutions for the shaft wobble that causes oil leaks and fork wear and came up with something different that can actually be done with another shaft extension, brass nut and a sleeve. You will need access to a drill press and some brazing rod. Cost for the mod is about 20.00. No drilling or glue needed. Lube the pivot with molly or find a bronze bushing to replace the nut. This prototype isn't perfect but it will work. I need a drilling and reaming fixture. The trick here is to maintain the same geometrical pivot point as the original extension has. A used shaft reamed out to .490 will slide in place. Notch the original shaft for the cinch bolt and tighten. The pivot will bolt onto the engine guard attaching bolt. No more missed shifts or leaking oil.







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virgilmobile
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby virgilmobile » Wed Apr 10, 2013 1:02 pm

I LIKE......
See..I told ya there's always another way to do things. :ugeek:
I like a simple fix....I do have a tendancy to overengineer sometimes but your idea yeilds the same results..
Stabilize the shift shaft....

Take many pictures,measurments,procedures and start mass producing them. :D You know how many Gl1500's have this problem?? :D :D You could make a fortune.

By the way....How nice it is to have a lift....I had to rest mine on it's side while laying on the floor to do my mod....It was cold too...and mosquetoes...and dark..

Yes I would like a little cheese with that :lol:

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Wed Apr 10, 2013 4:42 pm

virgilmobile wrote:I LIKE......
See..I told ya there's always another way to do things. :ugeek:
I like a simple fix....I do have a tendancy to overengineer sometimes but your idea yeilds the same results..
Stabilize the shift shaft....

Take many pictures,measurments,procedures and start mass producing them. :D You know how many Gl1500's have this problem?? :D :D You could make a fortune.

By the way....How nice it is to have a lift....I had to rest mine on it's side while laying on the floor to do my mod....It was cold too...and mosquetoes...and dark..

Yes I would like a little cheese with that :lol:


I have been thinking about this for a while now. Bought a couple of shaft extensions last year and stared at them while building transmissions. I am going to make some to offer up to the forum members and see how they like them. I purchased almost every available one on ebay today. Every 1500 could benefit from this. Except for yours that is. Your fix is fine. I sent some of my panels out for repainting so while the bike is down all the little mods and fixes that have been on my list are getting done. As for the lift, I would rather a transmission job be on the lift. Been real slow as a rather large shortage of money exists out there. We all need some cheeze with our wine! You are welcome to ride your butt out here and try it out. :) TY cliff

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Wed Apr 10, 2013 10:00 pm

I just went onto ebay and checked for additional shaft extensions. You little devils snapped them all up. :o

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WingAdmin
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby WingAdmin » Thu Apr 11, 2013 9:23 pm

I like it. It looks like it bolts onto the crash bar, is that correct?

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liquineer
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby liquineer » Fri Apr 12, 2013 4:03 am

I was wondering where it was bolted to as well.

Is this a common problem with the gear shift shaft?
I had not heard of it up to now.
Are we having fun yet?

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Fri Apr 12, 2013 5:46 am

WingAdmin wrote:I like it. It looks like it bolts onto the crash bar, is that correct?


Yes it does. The mounting sleeve has some extra room for clearance. 1 slightly longer 8x1.25 bolt with the flange ground off is all you need. 10mm head. Very common problem.

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Dusty Boots
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby Dusty Boots » Fri Apr 12, 2013 7:21 am

So, does your mod shift the shifter 'rubber' very far to the left, compared to the stock setup? Have any issues getting the toe of your boot under it?

peppilepew wrote:I have been thinking about this for a while now. Bought a couple of shaft extensions last year and stared at them while building transmissions. I am going to make some to offer up to the forum members and see how they like them.


Any idea on what you are going to sell them for?

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Fri Apr 12, 2013 8:10 am

Dusty Boots wrote:So, does your mod shift the shifter 'rubber' very far to the left, compared to the stock setup? Have any issues getting the toe of your boot under it?

peppilepew wrote:I have been thinking about this for a while now. Bought a couple of shaft extensions last year and stared at them while building transmissions. I am going to make some to offer up to the forum members and see how they like them.


Any idea on what you are going to sell them for?


Your shifter lever will have the same adjustment flexibility. The pivot and position geometry are unchanged. I have a few more things to change before making the final prototype. The protruding section of the pivot is going to be trimmed. You wouldn't even know it was there unless looked for or someone told you. You can tell by the positive shifts that the bike isn't stock. To install or remove just undo the engine guard attaching bolt and the cinch bolt holding the lever extension to the engine. Installing this mod is a 15 minute job. I have a machine shop down the street that needs 2 transmissions done. I see some bartering in the future. He has a CNC so producing a bunch of these should be a snap. I would sell these two ways depending on the persons skill and comfort level. Pivot or the entire shaft extension notched. I would require the old extension returned as a core so there would be a core charge on the entire mod. No core for just the pivot assy. I will have more info soon.

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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby cbx4evr » Fri Apr 12, 2013 9:28 am

I'm interested in the pivot.
"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby Sempai » Fri Apr 12, 2013 9:56 am

I would be interested in buying a nice looking, complete kit. Your engineering here is stupidly simple, lol, I have the stuff to make it all myself, but I'm way too lazy for that! What will the complete kit cost a guy?
Keep the rubber side down.

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Fri Apr 12, 2013 12:33 pm

Sempai wrote:I would be interested in buying a nice looking, complete kit. Your engineering here is stupidly simple, lol, I have the stuff to make it all myself, but I'm way too lazy for that! What will the complete kit cost a guy?


At this point with the current idea I need a supply of shaft extensions. I have some but will need someone to pivots for me. I am thinking about 100.00.

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Mon Apr 15, 2013 10:44 am

Before any of you handy dandy tinkers attempt this mod there are clearance issues that need to be worked out. Don't waste your time on money on this in its current form. This is just a prototype. It will not clear the lower shield tunnel for the shifter extension. A complete package with instructions will be coming soon. The tunnel in the lower shield will need trimming for clearance. :o

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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby bjatwood » Mon Apr 15, 2013 10:45 am

cricket cricket................. :lol:

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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby cbx4evr » Mon Apr 15, 2013 2:44 pm

"It´s a friggen motorcycle, it´s not supposed to be comfortable, quiet or safe. The wind noise is supposed to hurt your ears, the seat should be hard and riding it should make you s**t your pants every now and then. "

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Mon Apr 15, 2013 6:40 pm

I solved all the issues today. This mod will still require hidden trimming of the shield. You boys still interested? I am finishing up the prints for CNC manufacturing. Should be a week or so before I get a sample run.

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Sat Apr 20, 2013 10:44 pm

I managed to get enough of the bike together for some riding today. Stabilizing the shaft makes for less effort shifting. Finding neutral is easier. Shifts are more positive. It works great.

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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby TennX » Sun Apr 21, 2013 8:06 am

Im in for one , when you get ready to go to market.... :D
Phil.......

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mnet7291
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby mnet7291 » Wed Sep 25, 2013 5:27 pm

Yes please if you have this ready to sell I too would take one.

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Bigbiker0
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby Bigbiker0 » Thu Sep 26, 2013 5:55 am

I am intérest to how to place order?
Drive safely Heaven do not exist.

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Thu Sep 26, 2013 7:44 am

okay guys i am gonna make this thing for marketing.

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mnet7291
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby mnet7291 » Thu Sep 26, 2013 6:00 pm

Are you going to put it in the store here???

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Fri Sep 27, 2013 7:44 am

absolutely will. You guys have encouraged this to happen. Been real busy at the shop.

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yamaha96
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby yamaha96 » Mon Sep 30, 2013 11:22 am

I was just wondering if this jig will work with a heal toe shifter setup. Mike.

peppilepew
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Re: GL1500 shift shaft stabilizer mod. No drilling.

Postby peppilepew » Mon Sep 30, 2013 1:24 pm

yamaha96 wrote:I was just wondering if this jig will work with a heal toe shifter setup. Mike.


Yes it will. The only mod needed is to remove the unneeded metal around the shield behind the exhaust shield.




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