whats it worth
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Stage IV
Joined: Sep 2005
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whats it worth
a friend of mine has a 1972 sportster non electric start its been bored to an 1100 and has some extras i,m just wondering what this bike is worth, its complete and runs, needs a tire and a good cleaning he was told it was worth 3800 also if any one has any details about problems with this year pleeze let me know, any and all imputs are welcome
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Joined: Dec 2004
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From: Texas! Ya mean there's someplace else?
RE: whats it worth
I don't know what it is worth in your area, but I wouldn't pay more than $2500 for a '72 XLCH that needed a tire and a good detailing. Plus the engine has been bored out far enough that you're nearing the end of useful life on the cylinders.
This has come up several times recently. Let me put it bluntly: You do not bore an Ironhead Sporty to increase the displacement. You bore an Ironhead Sporty to clean up worn cylinder walls, and any increase in displacement is a by-product.
You might do a search in this forum and look for my earlier posts on similar questions. My firts bike was a '72 XLCH. This was the first year for the 1000 engine, and it had first-year teething problems, none of which are deal killers.
What are your expectations if you buy this bike?
This has come up several times recently. Let me put it bluntly: You do not bore an Ironhead Sporty to increase the displacement. You bore an Ironhead Sporty to clean up worn cylinder walls, and any increase in displacement is a by-product.
You might do a search in this forum and look for my earlier posts on similar questions. My firts bike was a '72 XLCH. This was the first year for the 1000 engine, and it had first-year teething problems, none of which are deal killers.
What are your expectations if you buy this bike?
Seasoned HDF Member
Joined: Dec 2004
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From: Texas! Ya mean there's someplace else?
RE: whats it worth
Did the calculations on what it would take to make a 1000 cc Ironhead to an 1100 cc Ironhead. It can't be safely done. Max over-bore on the cylinders is .070 oversize. With this maximum over-bore, displacement is bumped from 997.5cc to 1042 cc, or 58 cc shy of 1100.
An .070 over-bore is a last resort-'cause-I-ain't-got-the-money-for-new-jugs. You usually end up with overheating and warped cylinders.
Summing up: A maximum over-bore of +.070 inches bumps the engine displacement from about 61 cubic inches to a whopping 63.5 cubic inches.
Some pitching a "bored out to 1100" Sporty has been lied to big time, or is suspect himself.
An .070 over-bore is a last resort-'cause-I-ain't-got-the-money-for-new-jugs. You usually end up with overheating and warped cylinders.
Summing up: A maximum over-bore of +.070 inches bumps the engine displacement from about 61 cubic inches to a whopping 63.5 cubic inches.
Some pitching a "bored out to 1100" Sporty has been lied to big time, or is suspect himself.
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Stage IV
Joined: Sep 2005
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RE: whats it worth
Thanks for the info guys i have an atv that my friend want,s and he can,t get his lisence back so it,s a swap, on paper it looks ok i,m not sure if the increase in displacement is a aftermarket kit or not but i sure find your info very helpful. is there any thing about the tranny i should know about? i looked around the web and found some great info if i can post links let me know. as far as what i,m gonna do with it, well tune her on friday night and ride her on the few good days we get in maine thanx for the info this forum is great
Tony C
Tony C
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From: Texas! Ya mean there's someplace else?
RE: whats it worth
Tranny will hold up as long as you don't play drag strip with it. Look over in the Primary/Driveline etc. forum in the Tech area for a thread about a blown '80 Sporty tranny as the result of a race.
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Stage IV
Joined: Sep 2005
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RE: whats it worth
HI Skip thanks for your time and info, just 1 more question what problems did they have with the 1000 in 72/early73 i noticed that these moters use a shorter head bolt and different cyls and pistons than later 1000s. I read the thread on the blown tranny i would have let the ricer go as he needs to get that junk home b4 it turns in to a pumpkin because it,s not a real motercycle just a collection of parts acting like a motorcycle, once again thanks for takin the time Tony C
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From: Texas! Ya mean there's someplace else?
RE: whats it worth
'72s sometimes had kickstarter gear & clutch problems. By now that problem would be taken care of. Other old Sporty things are the old generators & mechanical voltage regulators. At the least, replace the regulator with a solid state job. There are alternators available, but they are pricey. Solid lifters means frequent adjustments. Points & condenser ignition means frequent adjustments, but they can be replaced by a solid state system. The drum front brake is only mediocre, and the rear drum brake is worse. Old hose-clamp exhaust clamps have a habit of loosening.
There are a lot of things, but that's the deal with an old bike. It ain't a new one, it requires more maintenance, and it has class.
There are a lot of things, but that's the deal with an old bike. It ain't a new one, it requires more maintenance, and it has class.
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