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Garden Tractors Discussion Forum

Re: Generac

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joe csuti

01-29-2013 14:42:35

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If eng a briggs intek v twin or a vanguard v twin the coil air gap is .008"-.012" on both.

As far as ign problem,intek & late model vanguard eng use a Y ign kill lead,there is a diode installed in each leg of Y that connect to coils to isolate coils from each other,if one of the diodes go bad it usually takes out both cyl,disconnect the kill lead at each coil,crank eng & check for spark,if you have spark now replace the Y lead.Lead can be ordered thru most briggs dealers,take eng mod/type numbers with you.

If eng an early vanguard eng will have a ground block mounted on eng with 3 quick disconnect terminals,disconnect kill lead to each coil from block,crank eng & check for spark,if you have spark now replace block,isolation diodes in block bad.

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joe csuti

01-29-2013 16:55:06

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 Re: Generac in reply to joe csuti, 01-29-2013 14:42:35  
As a quick followup,before condeming ground block if eng an early vanguard,disconnect lead on ground block to stop sw or ign sw,check operation of sw with an ohmmeter or battery powered test light,sw may be bad.

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