small fitting to test compression?

Discussion in 'Mechanic and Repair' started by kilabeez0, Dec 31, 2011.

  1. kilabeez0

    kilabeez0 LawnSite Member
    Posts: 29

    I'm not at home but a search for atc 70 spark plug says its a c7hsa. I know that is correct I remember. I'll reply tomorrow as to what plug is in my blower.
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  2. BILLSMOWERS

    BILLSMOWERS LawnSite Member
    Posts: 39

    ngk c7hsa is 10mm thread the a7tc plug is a chinese plug ( torch etc )

    bill
     
  3. kilabeez0

    kilabeez0 LawnSite Member
    Posts: 29

    Ok well most kits come with a 10mm adapter, its a common size. When I was really into atc's the question would always come up on what people would do to find an adapter for their 70. That said the plug on my blower is the same size.
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  4. randy448

    randy448 LawnSite Member
    Posts: 39

    Buy a new plug, break porcelain out and weld pipe fitting on to old shell.My Snap -On tester uses quick connect same as air hose end.
     

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