Re: 1980 Vespa Grande starting issues

Ike Pipe /
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So from the sound of your video, you don't have enough spark. You have spark, means your wires all work, but there is not ENOUGH spark. Your wet plug is the perfect evidence of that. Simply setting the plug on the fins and spinning will tell you if spark exists, but not strength. Spark outside the cylinder requires less energy than spark inside the cylinder because compression forces the air/fuel molecules closer together.

I use an adjustable gap spark tester to ensure that my spark is strong enough. It's a cheap tool and ensures that you absolutely have enough spark to run your bike. I shoot for spark that will jump a 1cm or 1/2in gap.

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Subject Written By Posted
  1980 Vespa Grande starting issuesTopic by: Asparagoose Lamichhane Asparagoose Lamichhane 01/06/21 08:40PM
  Re: 1980 Vespa Grande starting issuesRe: Ľ̷̝̽͒i̶̛̼͑͠ȁ̸̧̛̽m̵̻̟̯̀̅ ̷͎̙̽̊F̶̲̺͑̓ F Ľ̷̝̽͒i̶̛̼͑͠ȁ̸̧̛̽m̵̻̟̯̀̅ ̷͎̙̽̊F̶̲̺͑̓ F 01/06/21 10:29PM
  Re: 1980 Vespa Grande starting issuesRe: Dirty30 Dillon Dirty30 Dillon 01/07/21 07:27AM
  Re: 1980 Vespa Grande starting issuesRe: Nick MBC Nick MBC 01/07/21 09:02AM
  Re: 1980 Vespa Grande starting issuesRe: Dirty30 Dillon Dirty30 Dillon 01/07/21 09:23AM
  Re: 1980 Vespa Grande starting issuesRe: pat splat pat splat 01/07/21 09:56AM
  Re: 1980 Vespa Grande starting issuesRe: Nick MBC Nick MBC 01/07/21 10:14AM
  Re: 1980 Vespa Grande starting issuesRe: Dirty30 Dillon Dirty30 Dillon 01/07/21 10:19AM
  Re: 1980 Vespa Grande starting issuesRe: Asparagoose Lamichhane Asparagoose Lamichhane 01/07/21 02:27PM
  Re: 1980 Vespa Grande starting issuesRe: Nick MBC Nick MBC 01/07/21 02:50PM
  Re: 1980 Vespa Grande starting issuesRe: Asparagoose Lamichhane Asparagoose Lamichhane 01/24/21 08:07PM
  Re: 1980 Vespa Grande starting issuesRe: Asparagoose Lamichhane Asparagoose Lamichhane 01/24/21 08:08PM
  Re: 1980 Vespa Grande starting issuesRe: pat splat pat splat 01/26/21 07:15PM
  Re: 1980 Vespa Grande starting issuesRe: Asparagoose Lamichhane Asparagoose Lamichhane 01/29/21 12:25AM
  Re: 1980 Vespa Grande starting issuesRe: Ike Pipe Ike Pipe 02/05/21 12:32PM

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