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#1
06-18-2011, 12:43 PM
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Engine Not Running Right
Hi all. I haven't posted in awhile because my 682 has been running solid since I worked out some initial bugs over a year ago when I first picked it up. I've run into some problems with it not running just right, and I am trying to get them worked out.
Initially, I lost the coil. It was replaced with a David Kirk super coil. I also replaced the points and condenser while I was in there. Now it will run good, as long as I don't have the air cleaner on. When I remove it the engine runs fine. Put the filter on and it starts to peter out immediately. Pull it, and it picks up again. Filter is clean. Could this be a timing issue? Maybe I don't have the new points gapped correctly? I'm not sure. Also, all of a sudden when the engine warms up to operating temp, oil starts gushing out the breather tube that comes up through the bottom of the air cleaner. I mean like a fountain. What could possibly be causing this? I don't think it is too much oil - as it shows the correct level on the dipstick. Any ideas on what I should be looking at? By the way, it is a series II engine. Thanks for any help you can give me. Mo 
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#2
06-18-2011, 03:49 PM
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I am not a twin cylinder expert, but if I understand it correctly the breather tube that gushes oil connects to the air cleaner. If this is correct then the oil gushing into the carb would definitly cause the engine to run like crap. As to why oil is rushing up the tube, maybe you have the wrong dipstick giving you the incorrect oil level.
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#3
06-18-2011, 05:48 PM
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You may need to replace the breather assembly. There's a little flapper thingy on it and it'll eventually crack and break. Then you'll get oil coming up through the breather tube. I wouldn't run it too long without an air filter.
__________________
Adrian 2072 (789513)
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#4
06-20-2011, 06:36 PM
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Well, I went and bought a new breather assy today. Try and get it on tomorrow. I really don't think that is the issue, though. Like I said - everything had been running solid for over a year. Coil goes bad - replaced. Changed points and condenser while there, and now, fountain of oil. I mean a gusher. What the heck could have changed to cause this??? I don't get it. Only thing I could think of was that I didn't get the point gap right, and this is causing the timing to be off? Maybe not create the vacuum that is normally present? I'm not sure. I'm trying the breather tomorrow, and see what happens.
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#5
06-20-2011, 10:21 PM
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FWIW:
check the oil again and look to see if it has gas in it from a stuck float or a bad fuel pump. ( smell it) Is it possible it sat in the rain with the air cleaner off and has water in the oil? Or just drain the oil if it is close to a change to see if it is really the correct amount. at least you can positively rule out an overfilled crankcase.
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#6
06-20-2011, 10:49 PM
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Yeah, that sounds like a good idea. I'll do that first thing in the morning and see what happens. Now that you mention it, the oil was a little thin. I thought it might have just been because it was hot, but it smelled a little rich in the area as well. Something to check out, for sure.
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