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30th March 2021
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XL FORUM TEAM MEMBER
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Join Date: Jan 2020
Location: Loxahatchee, FL (S. FL)
Posts: 2,110 Sportster/Buell Model: XLCH Sportster/Buell Year: 2003 Sportster/Buell Model #2: XL Sportster/Buell Year #2: 1981 Other Motorcycle Model: FXDC Other Motorcycle Year: 2013
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1000/1200 and a severe diet.
__________________
Steve
'81 Andrews "Y" cams, K. Black 9-1 pistons
'03 1250 NRHS stage two Lightning heads, SE536 cams, mik flat slide 42
'01 Cyclone stock
'13 FXDC 96" stock
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30th March 2021
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Biker
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Join Date: May 2019
Location: South-West Great Britain
Posts: 66 Sportster/Buell Model: XL1200CA Sportster/Buell Year: 2016
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Quote:
Originally Posted by nlxl
no one, you just did...
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d'oh! 
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30th March 2021
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Biker
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Join Date: May 2019
Location: South-West Great Britain
Posts: 66 Sportster/Buell Model: XL1200CA Sportster/Buell Year: 2016
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Quote:
Originally Posted by xlerate
The M8 Sportster could have a balance shaft(s) (similar to M8 BT), and a slipper clutch, then solidly mounted to a new LIGHTER frame. 1200 and 883
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Now that's good thinking Xlerate. Lighter has got to better (reducing weight equates to more power, or something like that).  And the 'balancer shaft' - what a beautiful dream!
I hope so, xlerate, I hope so.
Thanks for the reply.
Cheers,
Chris
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30th March 2021
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Biker
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Join Date: May 2019
Location: South-West Great Britain
Posts: 66 Sportster/Buell Model: XL1200CA Sportster/Buell Year: 2016
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Quote:
Originally Posted by Akdawg
... My vote...keep it simple, focus on one GOOD engine, 1000cc should provide enough power, I know my 85 XLH does.
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That's the first time I've heard someone say 'one GOOD engine'. Interesting idea. 'Cos modern manufacturing likes 'modularity', that would make good sense, especially since there are significant parts not shared between the 883 & 1200.
Good point Akdawg!
Cheers,
Chris
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30th March 2021
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Biker
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Join Date: May 2019
Location: South-West Great Britain
Posts: 66 Sportster/Buell Model: XL1200CA Sportster/Buell Year: 2016
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Quote:
Originally Posted by Steve9
1000/1200 and a severe diet.
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Evening Steve - a good point, shared by Xlerate. I found out recently that the Sportster engine weighs MORE than a Twin Cam. Fancy. (No, I can't remember where!)
Cheers,
Chrs
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30th March 2021
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Biker
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Join Date: May 2019
Location: South-West Great Britain
Posts: 66 Sportster/Buell Model: XL1200CA Sportster/Buell Year: 2016
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Quote:
Originally Posted by AZbiker
To compete with Il Mostro, the Sportster is going to have to lose about a hundred pounds, and I don't see that happening...
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We can only hope AZ. (But PLEASE play nice - it was only a joke.)
Cheers,
Chris
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30th March 2021
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Biker
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Join Date: Oct 2020
Location: Northern VA/Space Coast FL
Posts: 45 Sportster/Buell Model: XLH883 Sportster/Buell Year: 1993
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Quote:
Originally Posted by ChrisOfTheOT
Evening Steve - a good point, shared by Xlerate. I found out recently that the Sportster engine weighs MORE than a Twin Cam. Fancy. (No, I can't remember where!)
Cheers,
Chrs
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That's only because it's got a transmission & primary built-in. It's not heavier than a Twin Cam + transmission + primary...
Roscoe
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5th April 2021
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Biker
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Join Date: May 2019
Location: South-West Great Britain
Posts: 66 Sportster/Buell Model: XL1200CA Sportster/Buell Year: 2016
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Morning Roscoe - ofcourse, I didn't think of that. One's unit construction and one isn't. D'uh. But I do remember where I got the (approximate) respective weights from: it was Donny Petersen's awesome 'Unauthorised Technical Guides'. (I am soooooo hoping he'll do an Evo Sportster edition - or, preferably, two: rigid and rubber.)
Cheers,
Chris
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5th April 2021
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XL FORUM TEAM MEMBER
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Join Date: Jul 2013
Location: Franklin, Indiana
Posts: 2,840 Sportster/Buell Model: XL1200C Sportster/Buell Year: 2013
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Since the Street models, 500cc and 750cc seem to have gone away at least in the US, Harley a while back indicated 4 engine sizes.
500, 975 and 1250 with likely another one at 750cc.
The 500 and 750 would be replacements for the Street models and the 975/1250 for the Evolution replacement.
Harley-Davidson’s New Middleweight Engine Detailed In Design Filings
__________________
2013 XL1200C
If something doesn't work on your Sportster look here:
SportsterPedia.com
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5th April 2021
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Biker
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Join Date: May 2019
Location: South-West Great Britain
Posts: 66 Sportster/Buell Model: XL1200CA Sportster/Buell Year: 2016
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Quote:
Originally Posted by shanneba
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Afternoon Shanneba - it's been a (long) while as I've been, you know, busy. Anyway, this is a thorny issue for me (see my YouTube vid) as I don't think the RevMax is an Evo replacement. Others... many others... disagree though...
Still, next video will pursue this further (hopefully, on the 12th).
Cheers,
Chris
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