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

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  #11  
Old 26th April 2015
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Find a hill or someone to push you, or run along side, put in second gear, get rolling, stand on pegs, drop weight on seat at the same time you dump clutch, get it running.
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  #12  
Old 26th April 2015
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Sorry for taking so long to reply, didn't realize we went to a 2nd page... duh... And that was my plan, but I couldn't find my damn chain break to put my new O ring chain on.. The struggle of a dirty garage and too much stuff I guess....
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  #13  
Old 26th April 2015
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So, the plan is to start the bike without knowing how much oil is in the system?

You don't have to, but I would suggest that you clear the engine manually. If not, best of luck and I hope it works out for you.
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  #14  
Old 26th April 2015
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I will definitely clear the engine as you said in earlier posts, going to do that this aft. And see what I can figure out! Cross your fingers and thank you for the help, i'll report my findings.
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  #15  
Old 26th April 2015
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Don't need more than a quart in the oil tank to start it, just enough so it doesn't suck air.

As soon as it fires it's going to be pumping buckets of oil to the tank.

And it's not like to motor will starve for oil when the crank case is flooded.
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  #16  
Old 26th April 2015
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Okay, update after tonight:

First thing I did was check if it was still like trying to kick start a peterbuilt...You betcha. So I popped all the covers off the pushrods and all were just lightly lubed except the pushrod closest to the oil bag... it was full. Drained it, cleaned up and kicked it through a couple times (all with plugs out) and it didn't do it anymore, so put all tins back on.

Secondly, kicked it through a few hundred times, plugs out, and watched to make sure the oil was returning to the oil bag, as I have clear braided lines.

SUCCESS. Put plugs back in and although it is still a bear, it is a manageable one, as it always has been!

On to my next problem though.. before I put the plugs back in, I put a dash of 2-stroke oil down the cylinders; hooked everything back up and began to kick..... Gas was off but there was plenty of gas going to the carb, as I could see the line was full all the way to the gas filter. I was able to get a couple smokey coughs through the carb, but after the 5th or 6th kick through on compression, no dice. I timed it recently and set the points, but could my magneto timing be off? Or perhaps my accelerator pump not pumping any gas to the carb?

From one problem to the next... but thank you for the help!
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  #17  
Old 27th April 2015
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Well, a couple of fuel-related things come to mind:

1. The carb is gravity-fed, so the petcock in the off position could be preventing the fuel in the line from filling the bowl because of suction.

2. The accelerator pump isn't really in play when starting. The priming kicks should pull in the fuel you need, as long as the bowl is at the right level (see #1)
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  #18  
Old 27th April 2015
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I didn't think about the gravity issue at all, makes sense! So should I just leave it on without tampering with the throttle? Will remember this for next time for sure. I suppose I could have pulled my air filter off and tried some WD to get it to go, but I was by myself.
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  #19  
Old 27th April 2015
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Treat your petcock just like your ignition key, turn the key on, turn the petcock on, turn the key off, turn the petcock off, except when your priming it, make this a habit.
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  #20  
Old 27th April 2015
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did you re-do the top end? if yes, that could be (a normal) part of it. it will calm down after the rings break in. any high performance parts; cams?
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