1991 QUESTIONS FOR ALL CARS ROUGH IDLE

  • Tiny
  • taip
  • 1991 All Other Makes All Other Models

Electrical problem
1991 Questions for all other cars 4 cyl Front Wheel Drive Manual

hi,
my car experiences a rouh or uneven idle, but sometimes it works as smooth as silk. I can't find out what's the problem and drives me crazy as I watch the tach moving + - 50 rpm. By the way it is carbureted. I just want to know whether the ignition leads are bad or good. Sometimes when I touch the wires while the engine runs I feel a slight electricity on my hand. Is it normal? Thnx.

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Thursday, July 9th, 2009 AT 8:37 PM

3 Replies

  • Tiny
  • mhpautos
  • Expert
  • 30,560 posts

Hi there,

I will need some input as to what type of car, engine etc as I am flying blind with out it.

Mark (mhpautos)

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Thursday, July 9th, 2009 AT 9:21 PM
  • Tiny
  • taip
  • Member

1991 year yugo 45 hp with 900 cc 4 cylinder inline engine. Breaker point ignition. The ignition leads are with copper core and silicone cover but when I touch them while engine runs I feel electricity on my hand. Is it normal? Engine runs uneven at idle and when accelerating I feel steady pulses. By the way engine is in perfect condition with 43 mpg fuel consumption.

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Friday, July 10th, 2009 AT 6:06 AM
  • Tiny
  • mhpautos
  • Expert
  • 30,560 posts

HI there,

These old style copper leads are leaking voltage and cross firing, get good quality silicon leads if you can this hould help a lot.

Mark (mhpautos)

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Friday, July 10th, 2009 AT 6:12 AM

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