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  #1801  
Old 23rd September 2018
Hippysmack's Avatar
Hippysmack Hippysmack is online now
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Sportster/Buell Model: Xl1200S
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Default

Quote:
Originally Posted by sportsterdoc View Post
however, I suspect that it may be more of an EPA issue, akin to the plug covering the idle mixture screw...an EPA thing
Absolutely sportsterdoc!

From the Sportsterpedia:
The clean air act of 1978 started affecting Sportsters in 1979.

1979 changes include:
A new recalibrated carburetor with tighter quality control, high and low idle feature, and an improved fast idle choke mechanism.
A transistorized, breakerless, solid state ignition system.
A closed crankcase breather system.
Modified air intake with a new high-capacity air cleaner.
Modified exhaust systems.

1980 saw new changes to comply with EPA regs:
The carburetors are totally non-adjustable by the customers.
Tamper proof ignition timing cover held on by two pop rivets to help prevent anyone (except the dealer) from tampering with the timing.


HD Service Bulletin #M-725 (dated February 14, 1978)

Under provisions of the U.S. Clean Air Act, all street-legal motorcycles manufacxtured after December 31, 1977 must comply with Federal Environmental Protection Agency (EPA) and California emissions regulations.

At the time, the EPA had not established regulations for a quick field test to measure emissions.
It was difficult to prove emission failure with reliable test data.
So, there was no need for dealers to physically test for emission quality.
If factory specs were followed and OEM parts (or equal) were used as replacements, the motorcycle met emission standards.
So, if the rivets were gone, it could be assumed that the ignition had been changed which would "fail" EPA regs.

http://sportsterpedia.com/doku.php/s...99xx-01f#fn__1

The EPA had not set up a separate parts certification procedure.
However, it was understood from the EPA that non-Harley-Davidson parts may be used, only if the dealer or mechanic (not Harley-Davidson) can certify that such parts are equivalent in function to OEM parts.
And, would not cause the motorcycle to fail to meet emissions standards.

So, even though such parts may be used for EPA compliance, the MoCo established the policy that all warranty service would be performed with genuine Harley-Davidson parts.

The Clean Air Act established penalties up to $10,000 for each violation by a dealer and up to $2,500 for each violation by independent mechanics, speed shops, etc.x

Under the anti-tampering provisions of EPA regulations, the replacement or alteration of emission related components outside of factory specifications was prohibited.
John Davidson sent a letter, dated January 3, 1978, to dealers suggesting they review and adhere to the new EPA regs so as not to be exposed to liability for any violations of the tampering thereof.
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Reference the XLFORUM'S Sportsterpedia for additional technical information & advice

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  #1802  
Old 4 Weeks Ago
Tomt Tomt is offline
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Default SE module and SE coil, engine light on, solved

I have run a 7500 rpm SE module with a SE coil for over 15 years, and the engine light would come on. When I put the stock coil back in with the SE module installed, the light would go off. But, I wanted to use the SE coil. Played with this problem for a long time.
Just on a hunch, I had the dealer advance the ignition 3 degrees, 23 degrees total. With 23 degrees, SE module, and SE coil, I get NO light. Been running this way for a couple years. Runs great! It seems the extra advance tricks them into submission!
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  #1803  
Old 4 Weeks Ago
ftwflh ftwflh is offline
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Sportster/Buell Model: Sportster
Sportster/Buell Year: 1998
Other Motorcycle Model: 1972 FLH
Other Motorcycle Year: 1972
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Default

Quote:
Originally Posted by Streak70 View Post
This was posted on the Yahoo HDXL1200S group in January, 2009:

These modules have all been purged from Harley dealers everywhere but
there are 67 (last inventory count) at Vintage Parts in Beaver Dam
877-846-8243. But they will only sell to franchised hog dealers. It is
the replacement module (module only) for the 7500rpm screaming eagle
kit. 32982-98 .
I know this is a old post but I have found a few dealers that still have the 6800 and the 7500 modules.If any one would like a list pm me
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  #1804  
Old 4 Weeks Ago
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Just for fun, my son and I will square off with our bikes later today. Mine, 2002 XL1200S, his 2018 Triumph T120 1200. Can I make this a race? My bike is stock with stage 1(Kerker 2 into 1, hammer air cleaner, re-jetted, SE Module.) His is freshly broken in factory stock. Magazine testers ran a 12.63 on the Turnip so I think I know how this will go. He is about 20lbs heavier than me. What are my chances?

Last edited by drgonzo21; 4 Weeks Ago at 19:26..
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  #1805  
Old 4 Weeks Ago
bdavis bdavis is offline
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Sportster/Buell Model: XL1200S
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Quote:
Originally Posted by drgonzo21 View Post
Just for fun, my son and I will square off with our bikes later today. Mine, 2002 XL1200S, his 2018 Triumph T120 1200. Can I make this a race? My bike is stock with stage 1(Kerker 2 into 1, hammer air cleaner, re-jetted, SE Module.) His is freshly broken in factory stock. Magazine testers ran a 12.63 on the Turnip so I think I know how this will go. He is about 20lbs heavier than me. What are my chances?
No idea, but I want to see pictures/videos! Keep us posted.
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  #1806  
Old 4 Weeks Ago
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lol..no pics or videos. Here's how it went; rolling start in 1st gear, go on the third horn beep. I had the horn on the first run and got a pretty good jump and pulled out a pretty good lead up to about 100mph. I was surprised my bike ran that strong to say the least. So we lined up and ran again. This time my son had the horn and he got a little jump on me.....it was practically a dead heat. I made up some of the ground on him up to 100 or so. That's where we left it. His bike will loosen up and get a little faster and will get an exhaust x-pipe in the future but for now, this old XL1200S is more than a match for that new 1200 Turnip. Good times.
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  #1807  
Old 3 Weeks Ago
bdavis bdavis is offline
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Quote:
Originally Posted by drgonzo21 View Post
lol..no pics or videos. Here's how it went; rolling start in 1st gear, go on the third horn beep. I had the horn on the first run and got a pretty good jump and pulled out a pretty good lead up to about 100mph. I was surprised my bike ran that strong to say the least. So we lined up and ran again. This time my son had the horn and he got a little jump on me.....it was practically a dead heat. I made up some of the ground on him up to 100 or so. That's where we left it. His bike will loosen up and get a little faster and will get an exhaust x-pipe in the future but for now, this old XL1200S is more than a match for that new 1200 Turnip. Good times.
Nice! I'm not surprised. I don't know anything about the Triumph but I know my 2003 Sport seems to get to 100 real quick. Beyond that I start to lose interest in how much more it can do... lol
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  #1808  
Old 3 Weeks Ago
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My 03 is just stage one with SE coil, 7500 rpm module, plug wires, iridium plugs and an HSR42. The throttle response is awesome. I'm not a racer and am intimidated to try a hard launch. But it is nice to know that a 15+ year old bike can hold it's own against a newer bike.

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