Re: 1980 Vespa Grande starting issues

pat splat /
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pardon me for going off earlier, but 150 psi on a stock vespa is unheard of. Id spray some premix in the plug hole and drill start, thats after cleaning and setting points again and again.

Spark on a vespa goes thru your brake switches and your brake bulb to ground so wise to check those components as well.

Sometimes when a motor first get put together its a bit off...bearings, case halves, new seal, etc. I usually take a smalll block of wood and whack it a few times and then spin to make sure the only resistance is the new seal, if its periodic like you say then check for rubbing against the subframe or worst case scenario is you dropped the crank or nicked the crank lobe and everytime it passes your intake patch its gouging it up, terrible.

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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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