1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

12a - Can it run on one rotor?

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Old 11-03-06, 09:31 AM
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12a - Can it run on one rotor?

Can it? I was messing with mine, and while it was running, I removed the T-1 plug wire-no change, removed the L-1 plug no change, I then removed the T-2 wire little change and then L-2 and the engine stopped.

Seems that if I reconnect all, except L-2, then it won't run..........

It idles fine (with all plugs) but I am having issues with a smooth acceleration.



Old 11-03-06, 09:38 AM
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yes, the engine can run on one rotor. are you sure you are getting adequate spart on both the leading an trailing side? if it were runnig on one rotor, the engine will run rough, have a low idle, the acceleration will be very slow, and the engine will rev very slowly.
Old 11-03-06, 09:40 AM
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howd u go about pulling the wires off, that **** hurts, although i guess u could use some rubber grip pliers.
Old 11-03-06, 09:44 AM
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It actually idles fine, and the acceleration is smooth while warming up (with the choke pulled) It sputters when the choke is not pulled.

And as for getting shocked.........I am tough! (maybe stupid too!)
Old 11-03-06, 12:36 PM
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wait the 12a has 2 rotor right lol dumb Q but got to learn some how
Old 11-03-06, 12:56 PM
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yes, the 12a is a two rotor.
Old 11-03-06, 01:09 PM
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My 79 drove like nothing had happened except for super slow acceleration when I lost a rear rotor all 3 sides 0 compression. still do burnouts though.
Old 11-03-06, 02:15 PM
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Be careful driving that **** with cats, running on only one rotor. We picked up a 91 that had no compression on the rear rotor and tried to drive it home. The cats got so hot they caught the rubber mounts on fire which lead to other **** catching fire. We caught it before it did to much damage though.
Old 11-03-06, 02:19 PM
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I would suggest a full tune up with fuel filter change and a carb rebuild.
Old 11-03-06, 04:24 PM
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Can a 2 rotor engine run on 1 rotor, yes. How well, about as well as you could run with 1 leg and a crutch.
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