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Keep & Kill
Last Post: Crusty
Posted On: 7 Hours Ago
Replies: 30,775
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21st March 2007
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Drag Race Champion
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Join Date: Mar 2007
Posts: 378 Sportster/Buell Model: XLCH Sportster/Buell Year: 1961 Sportster/Buell Model #2: XR 750 Sportster/Buell Year #2: 1980 Other Motorcycle Model: XR 1000 Other Motorcycle Year: 1983
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Magneto Kick Start problems
Hello, a new member from Germany needs some help. After riding a PanHead for 10 years I decided to switch to a 61 XLCH, and I wish I would have done it earlier. Its a far better motorcycling compared to my old Rigid Frame Bike.
But here is the bad news: Even after 3 years riding it incl. engine rebuilt and other trouble, I still have starting problems. Especially in cold weather it needs sometimes 20-30 jump kicks to start up. I found out the sparks are pritty small while kicking. When it runs - everything is perfect.
I did check the magneto again and again, I did send it to a special shop, they checked it for money too. But nothing is to be found.
The engine tune up should be perfect as the ignition timing. Now I am gonna adding the manual magneto retard system, which was original from 1964.
Does anybody have other suggestion how could I improve the ignition and the starting procedure?
Thanks,
Andreas
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21st March 2007
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Riding with Angels
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Join Date: Mar 2006
Location: Atl/StnMtn
Posts: 1,959 Sportster/Buell Model: XLCH Sportster/Buell Year: 1968
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After 3 years you should know the drill so unless you're flooding it and fouling the plugs consistently OR underchoking it, adding the retard sounds like the right thing to do. I'd never try to start mine advanced. Does starter fluid spray (ether) help? Thefrenchowl is the resident guru with magneto bikes. Welcome to the forum!
Matt
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21st March 2007
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Master Mechanic
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Join Date: May 2006
Location: Boise
Posts: 282 Sportster/Buell Model: XLCH Sportster/Buell Year: 1962 Sportster/Buell Model #2: XLH 883 Sportster/Buell Year #2: 2002 Other Motorcycle Model: FXS Other Motorcycle Year: 1982
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Does the mag still put out a weak spark after it was at the shop? The plate for retarding the mag is nice to have. Makes starting that much easier. If you are running the original carb, i would throw that piece of shit away and try a CV, SU, or S & S...
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21st March 2007
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Senior Master Custom Bike Builder
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Join Date: Nov 2004
Location: beaver dam wi. 10,000dam beavers can't be wrong
Posts: 9,046 Sportster/Buell Model: FXRS-SP Sportster/Buell Year: 86 Other Motorcycle Model: wla flathead45 Other Motorcycle Year: 1945
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old mags have a problem with their permanent magnets, they get weak, weak magnets don't throw a hot enuff spark at slow speeds like kickin speed
some times shops forget that. see if the dude that rebuilt it checked the power of the magnets
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21st March 2007
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Senior Custom Bike Builder
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Join Date: Jul 2006
Location: Northern Colorado
Posts: 2,560 Sportster/Buell Model: XLCH Sportster/Buell Year: 61 Other Motorcycle Model: Superglide Other Motorcycle Year: 74
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I have a big mallory condensor that clamps to the outside of my magneto. (It's too big to fit inside). I think it helps me start. Also I need to assume that you are not flooding it and everything else is ok. I say try different things, other than what you are doing. Whatever you are doing that takes 30 kicks, don't do that any more. Teeny bit of throttle, wide open, 2 kicks with the ignition off then turn it on. Try anything other than what you are doing now. Word of encouragement, if it's a stock motor you will find its sweet spot. If it's a stroker like mine, 30 kicks is a good day. (just kidding) Whatever you do, don't show any sign of weakness. Mag sportsters love to get the best of you.
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22nd March 2007
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Senior Chief Harley Engineer 2nd Class
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Join Date: Jan 2007
Location: Bayern Germany
Posts: 1,689 Sportster/Buell Model: XLH Sportster/Buell Year: 1980 Other Motorcycle Model: FXDBi Street Bob Other Motorcycle Year: 2007
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Your Ironhead is a little to old for me I dont know much about them but welcome to the forum from all us Ironheads.Where are you here in Germany?I have been living in Bayern for the last 18 years.
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22nd March 2007
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Master Custom Bike Builder
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Join Date: Nov 2006
Posts: 3,241 Sportster/Buell Model: KHK Sportster/Buell Year: 1954 Sportster/Buell Model #2: 900cc XLB Sportster/Buell Year #2: 1967 Other Motorcycle Model: 1200cc XLRTT Other Motorcycle Year: 1966
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Hi, German61xlch and welcome here...
What carb have you got on your 61?
Original L&L Linkert model DC is a pretty good carb and should be easy to live with, unlike later Tillotsons which are an aquired taste ( I personnaly love them...)
Usually, 2 or 3 kicks with full choke should make the engine kick back through the carb, that's when you know there's enough fuel in there, then 1/4 choke or none depending on state of tune and the bike should start.
30 or more kicks = problem somewhere and I can tell you from my own 20 years experience with mostly non-retard Fairbanks-Morse, they are rarely the source of the problem... although they need to be set up right, no more than 15 thou points opening, good condenser, good old copper plug leads and the engine needs the full 45 deg advance to run right, don't be tempted to reduce it in the hope it'll start easier, it won't...
Check your plugs after say 10 kicks, are they flooded or bone dry, my guess they will be bone dry, then check carb, iddle should be set slightly rich otherwise, no chance to kick it...
Also check state of valves and seats, worn guides will also make it hard to start...
Talk to you later when I know what you're running...
Patrick
Last edited by thefrenchowl; 22nd March 2007 at 01:14..
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22nd March 2007
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Custom Bike Builder
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Join Date: Nov 2005
Location: 100 yo shack in the country
Posts: 2,346 Sportster/Buell Model: XLH Sportster/Buell Year: 1987 Sportster/Buell Model #2: XLH Sportster/Buell Year #2: 1991 Other Motorcycle Model: Sportster XLH Other Motorcycle Year: 1995
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I'm not an Ironhead, but a bro told me to check the bushings on the mag shaft. If it floats around.....
Sam
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22nd March 2007
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Greasemonkey
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Join Date: Oct 2006
Posts: 104 Sportster/Buell Model: XLCH Hardtail Sportster/Buell Year: 75
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aint got a clue but welcome pics pics pics

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22nd March 2007
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Biker
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Join Date: Dec 2006
Posts: 19 Sportster/Buell Model: xlch Sportster/Buell Year: 1969
Reputation: 10

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My bike also takes 20-30 kicks to start when it's cold. I'm still learning about the bike though.
Anyway, I have the manual retard on my magneto. The problem is I don't know which direction to turn it yet. I took it all apart, so I haven't really had a chance to experiment. Should I turn it towards the motor? Here's a pic of mine.
What is the best way to set that screw you see? It limits the advance/retard you can get.
I bought my bike with a Super B on it, but I got another carb and it's no better with it on. I don't know what kind of carb it is yet? I'm so busy with work I don't get to do all the reading I'd like to. Does someone eant to save me some research and tell me what carb this is?
Any advice would help at this point. 
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