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Ironhead Sportster Motorcycle Talk (1957-1985) For all those that wanna talk about Ironhead Sportster Motorcycles

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  #31  
Old 11th July 2019
owlsplace owlsplace is offline
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The paddock lift came in today but I'm going into a heavy work scenario and the bike is my primary ride. Since I've been randomly adjusting the timing to find what works and what doesn't I've been impressed with "the size of the box" a Harley motor can tolerate. I suspect my motor has non-standard cams.
Got the clutch adjusted but it looks like the swing arm bearings need to be replaced. Poco e poco... One step at a time.

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  #32  
Old 11th July 2019
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Remember the tuning window on an air/oil cooled motor changes dramatically with ambient temps and these motors have a very long warm up 30 to 50 miles.

Also due to the displacement of these motors they will make useable power way out of tune and rapidly eat themselves up when run in that state.

Do not forget to maintain an idle speed over 950 so the pistons get enough oil and don't smear themselves on the cylinders.
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  #33  
Old 11th July 2019
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Mine never idles very long -- start and ride.
Another novelty is the point gap changes with the rotation of the backing plate.

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  #34  
Old 11th July 2019
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Getting the point gap equal on both lobes is critical, the difference is amazing.
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  #35  
Old 11th July 2019
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Quote:
Originally Posted by owlsplace View Post
Got the clutch adjusted but it looks like the swing arm bearings need to be replaced. Poco e poco... One step at a time.

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swing arm bearings can be adjusted.try that before replacing.
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  #36  
Old 11th July 2019
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Quote:
Originally Posted by brucstoudt View Post
swing arm bearings can be adjusted.try that before replacing.
Yep, just looking through the manual on that. I'll take a shot at it when I change the rear wheel although the manual says I need a bead breaker to change the tire on 16” wheels. May be waiting for wintertime

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Last edited by owlsplace; 11th July 2019 at 23:15..
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  #37  
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Bead breaker not needed,

Flatten the tire and do a burnout!
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  #38  
Old 12th July 2019
owlsplace owlsplace is offline
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Quote:
Originally Posted by ryder rick View Post
Bead breaker not needed,

Flatten the tire and do a burnout!
Ha, ha, ha... Okay, will do. I was planning on reusing the tire and tossing the wheel though.

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Last edited by owlsplace; 13th July 2019 at 11:19..
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  #39  
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There are many ways to improvise a bead breaker.

You can use a vice to squeeze the tire.

You can use a board and roll a car onto the board.

You can use a round blade shovel.

As always lube helps, dish soap diluted with 3 parts water works very well.
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  #40  
Old 12th July 2019
owlsplace owlsplace is offline
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Quote:
Originally Posted by ryder rick View Post
There are many ways to improvise a bead breaker.

You can use a vice to squeeze the tire.

You can use a board and roll a car onto the board.

You can use a round blade shovel.

As always lube helps, dish soap diluted with 3 parts water works very well.
Can't conjure an image on the round blade shovel but I can't imagine being beaten by a 16” tire

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Last edited by owlsplace; 13th July 2019 at 11:17..
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