My mini has a misfire on cylinder 2 when I remove plug cap and arc to plug it fires. I've replaced plugs points leads cap anyone have any idea?Thanks.
Misfire 1275 Engine
Started by
Jonwill
, Apr 02 2025 06:00 PM
5 replies to this topic
#2
timmy850
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Posted 04 April 2025 - 02:24 AM
Are the valve clearances set properly?
Have you done a compression test?
Have you done a compression test?
#3
68+86auto
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Posted 04 April 2025 - 04:03 AM
How do you know you have a misfire on cylinder 2?
#4
Lplus
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Posted 04 April 2025 - 06:54 AM
My mini has a misfire on cylinder 2 when I remove plug cap and arc to plug it fires. I've replaced plugs points leads cap anyone have any idea?Thanks.
Not quite sure what you mean when you say when you arc the spark to the plug it fires. Do you mean the engine then runs on 4 cylinders, or do you mean you can hear the spark jump to the plug but the engine still doesn't run on 4?
#5
timmy850
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Posted 04 April 2025 - 06:56 AM
It’s a little trick to test the system. If you pull the lead off and hold it off the top of the spark plug it’ll make a wider gap, which can increase the spark power and make the plug fire.
Not quite sure what you mean when you say when you arc the spark to the plug it fires. Do you mean the engine then runs on 4 cylinders, or do you mean you can hear the spark jump to the plug but the engine still doesn't run on 4?
My mini has a misfire on cylinder 2 when I remove plug cap and arc to plug it fires. I've replaced plugs points leads cap anyone have any idea?Thanks.
#6
Lplus
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Posted 04 April 2025 - 04:25 PM
It’s a little trick to test the system. If you pull the lead off and hold it off the top of the spark plug it’ll make a wider gap, which can increase the spark power and make the plug fire.
Not quite sure what you mean when you say when you arc the spark to the plug it fires. Do you mean the engine then runs on 4 cylinders, or do you mean you can hear the spark jump to the plug but the engine still doesn't run on 4?My mini has a misfire on cylinder 2 when I remove plug cap and arc to plug it fires. I've replaced plugs points leads cap anyone have any idea?Thanks.
ok, I just wanted the OP to confirm that.
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