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

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  #91  
Old 4th March 2017
barefoot barefoot is offline
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p.s. Not trying to rain on your parade or anything (it wouldn't do any good anyhow ) but I had a bike very similar to yours. 320 lbs, (didn't even have a generator, save weight ! but had to be home by dark). 9:1, 61 inches. It was tiny and I loved it but bump starting that thing got real old. The 350 was fine. You won't put nearly as many miles on it as if you had a kicker. Guys'd say "Wanna go for a ride ?" and I'd take the 350.

And rollers aren't as much fun as you think either. They are sort of a pain in the ass.

Have you ever had a car with no reverse ? It's about the same thing, only more athletic. And I was 20 at the time.

But do listen about the megaphones. Awful on the street, and they even sound bad. XR's used real long reverse cones and worked okay at 7000 rpm but that's not typical around the neighborhood. They fall off the pipe HARD. Staggered duals work nice, look decent, and sound good. Plus they carburate.
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  #92  
Old 4th March 2017
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I'm currently working on a street tracker.
I saw mrmom9r ran a small batt and a electronic breaker on his XR clones, I had to try the same setup on mine.
The batt fits great up under the tailsection.
It's the exact opposite to the bare bones direction you are planning, just thought I would mention it.
On the kicker issue, I was planning on using a aircraft quick release pins for rear set pegs to clear kick pedal, we will see not 100% done yet, also I don't like the backwards shift (is your plate reverse pattern?), and don't want another bike with linkage rearsets...
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  #93  
Old 4th March 2017
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Quote:
Originally Posted by xrcr guy View Post
Hello everyone. XLforum is pretty amazing, there are threads for EVERYTHING.

Here goes... I have a bump start only project bike with a 1967 lower end. It has alloy barrels and Thunderheads and it is in a XR750 chassis, so the bike will be pretty light. It only has 10.5:1 compression and it is not a stroker, only 1000cc's. I have a magneto that was gone through when the motor was built 25 years ago. The mag is chrome plated (not by me...) and I am thinking that I just need to sell it and buy a nice new Morris MME with the MRA and eliminate the potential drama of using the old magneto (even if I had it refreshed).

I know that when set up properly a standard mag should not be a problem but the new MM3 should be : A little better ? A LOT better? or practically start itself...

Comments ? Suggestions ?

Thanks for the help, Craig

you have posted your magneto questions in a thread that is full of some great information regarding the subject.

I'm posting from a phone so the pic is small, but it appears your maggy is fixed mount. With all the comments speaking to the lack of kicker choice, I won't comment to that other than having an adjustable maggy will make your life easier especially at red lights and in traffic. You will want to be able to have as much control of your timing/tuning as possible because it sucks when the motor stalls at a light in traffic....and it would suck even more when you can't just drop the kicker to light it up again.

Within this thread there are some great tips to help you assess your own maggy. You will want your maggy as well tuned and operating smoothly as you can get it. Can you get a spark across the coil with a snap by hand? That is the goal. There are some great posts by Dr D. in this thread and in other sticky threads AND in his dedicated posts section that can help you to achieve this. Hopefully, when the body was chromed the rotor and body was properly maintained to prevent any loss of magnetism.

s
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  #94  
Old 4th March 2017
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Morris MM3 is the king of ironhead magnetos.it has rare earth magnets.mine has auto-advance.ask choptop37 about the retard in the cap model.
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  #95  
Old 3 Weeks Ago
Larry May Larry May is offline
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Amen to straddle kick, I was on crutches for 6 weeks from a slip from side kicking
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  #96  
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Quote:
Originally Posted by Larry May View Post
Amen to straddle kick, I was on crutches for 6 weeks from a slip from side kicking
I can’t straddle and kick without getting a bad bruise on the back of my knee from the top shock mount.
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  #97  
Old 3 Weeks Ago
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That is a beautiful and interesting motorcycle. It's clear that a lot of thought and planning has gone into it. I never cared for XLCR bodywork, but it looks just right on that bike,
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  #98  
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Morris Magneto has a Kit that allows you to Retard by the Flip of a Lever that pokes up Thru the Cap, what I like about this is that the mag base stays fixed and that is good for your seal, check their Web Site ..
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  #99  
Old 3 Weeks Ago
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What else can you share about the bike? Forks? Cylinders? Brakes?
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