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79 XLS1000 engineering question

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Old Jun 13, 2024 | 02:28 PM
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Default 79 XLS1000 engineering question

Question for anyone that has a few more nuggets upstairs than I do. I'm making rubber motor mounts for my bike. Due to the fact the frame is tubular, should I cut out that section out to put a reinforced block there?
The block would be solid with a rod, the same ID as the frame on both ends.
 
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Old Jun 13, 2024 | 05:28 PM
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I would think cutting the frame anywhere would be a bad idea if you are not welding something back in place that is equivalent to or beefier than your stock frame.
 
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Old Jun 13, 2024 | 05:51 PM
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Originally Posted by Ghetto blaster
I would think cutting the frame anywhere would be a bad idea if you are not welding something back in place that is equivalent to or beefier than your stock frame.
There would be a solid square stcok piece with rods on both ends the same as the inner diameter of the frame. All tig welded back together. Trying to cut down on the vibration.
 
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Old Jun 13, 2024 | 08:41 PM
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OMFG!!!!!! Want to cut down on the vibrations . . . . on an Ironhead Sportster. The Ironhead ran from 1957 to 1985. They shake, they quake and vibrate, the nature of the Beast. The MoCo Engineers that drew it up did an EXCELLENT JOB! Now You, missing a few brain nuggets want to rubber mount the front engine mounts. What can ya think up with the rear engine mount? ROFLMAO The way I see it is - 1- put yer Big Boy shorts on and ride it 2 - sell it before ya hurt yourself or a nearby bystander 3 - get an EVO RUBBER MOUNT bike.

1977 XLH 1000
 
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Old Jun 13, 2024 | 08:54 PM
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You could have someone machine some radii into a plate or block of steel that are the radius of the frame, and just weld that to/all around the frame.

Sorry if this doesn't make sense verbally. Basically I'm describing a cross member, which is sandwiching the two (left/right) frame sections. Then weld the frame to that cross member.
 
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Old Jun 13, 2024 | 09:30 PM
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I would expect the motor's vibration and movement will break that frame. When they went to rubber mounting the motor they had to make the frame much stronger, and heavier.
 
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Old Jun 13, 2024 | 11:39 PM
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Originally Posted by TexasScooterTrash
OMFG!!!!!! Want to cut down on the vibrations . . . . on an Ironhead Sportster. The Ironhead ran from 1957 to 1985. They shake, they quake and vibrate, the nature of the Beast. The MoCo Engineers that drew it up did an EXCELLENT JOB! Now You, missing a few brain nuggets want to rubber mount the front engine mounts. What can ya think up with the rear engine mount? ROFLMAO The way I see it is - 1- put yer Big Boy shorts on and ride it 2 - sell it before ya hurt yourself or a nearby bystander 3 - get an EVO RUBBER MOUNT bike.

1977 XLH 1000

You don't know me, son. Show some respect and get some back story before you start bumping your gums.
I don't need a history on Sportys, I know it. I've had the '73, '76 and, this '79. Not to mention the ones prior to during Harleys "true years". Have you ever ridden a right hand shift? Or a suicide clutch? Aside from working my *** off at a steemill, I've ridden coast to coast on old school bikes. Rigids included. Tore the living hell out of my back and neck. I'm also f*****g terminal. Want my remaining years riding to be comfortable. I ain't the oldest on this forum , but damn sure ain't the youngest.
Disrespectful idiot. I got something behind my big boy shorts you can throttle your Evo lips on. With that being said. Before you threaten to beat my ***, maybe, maybe not. I'll heal up, but you'll still be an idiot.
 
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Old Jun 13, 2024 | 11:51 PM
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Default Back story

Originally Posted by Groovedog
Question for anyone that has a few more nuggets upstairs than I do. I'm making rubber motor mounts for my bike. Due to the fact the frame is tubular, should I cut out that section out to put a reinforced block there?
The block would be solid with a rod, the same ID as the frame on both ends.

Im up there in years, handicap and, a terminal illness.
Don't care what the nature of the Beast is. My last years riding will be comfortable. Whatever happened to a brotherhood, respect and a little common decency?
I've turned my own wrenches and never was offered help. I never asked for any either. Maybe a little advice, but that's it. So, if you want to run your d***s****r, do it on another thread or forum. Thank you
 
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Old Jun 14, 2024 | 06:45 AM
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Last edited by Bubba Zanetti; Jun 14, 2024 at 06:46 AM.
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Old Jun 14, 2024 | 07:23 AM
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Groovedog, Sorry if I set you off with a little criticism of, and I quote YOU, "anyone that has a few more nuggets upstairs than I do." As for the "son," I highly doubt it. Sorry about your health issues, I'm 74 and dealing with my own. A simple word to the wise. When ya start a post with your quote in BOLD, ya gotta expect someone will say something that sets you off.
 
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