Author Topic: [photo] 2nd Spark Plug Prep in Stelvio Head (AC Engine Code)?  (Read 690 times)

Bonaventure

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Photo of my bike.  Why the 2nd hole, is it for a dual spark setup that never happened?  The lead off code on the engine number is "AC." 



« Last Edit: April 28, 2018, 08:00:43 AM by Bonaventure »

Bonaventure

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Re: [photo] 2nd Spark Plug Prep in Stelvio Head (AC Engine Code)?
« Reply #1 on: April 28, 2018, 07:55:14 AM »
Quick tip:  See that peice of 3/8" fuel line lying next to the socket extension?  That is a great way to grab the spark plug out of the hole after loosening, and a good way to re-install the plug.  Slip the fuel line onto the ceramic, grips just enough to turn it in the threads yet comes off very easily.  You can thread the plug right up to gasket contact this way with zero risk of cross threading.   

Offline guzzisteve

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Re: [photo] 2nd Spark Plug Prep in Stelvio Head (AC Engine Code)?
« Reply #2 on: April 28, 2018, 08:06:39 AM »
Some parts are shared w/Cali14 engines. That's how smart production works.
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Bonaventure

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Re: [photo] 2nd Spark Plug Prep in Stelvio Head (AC Engine Code)?
« Reply #3 on: April 28, 2018, 08:32:32 AM »
Aha, makes sense.  So they're same heads as on the California 1400.  Cool. 

Wildgoose Chase Moto Guzzi

Re: [photo] 2nd Spark Plug Prep in Stelvio Head (AC Engine Code)?
« Reply #3 on: April 28, 2018, 08:32:32 AM »

Offline guzzisteve

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Re: [photo] 2nd Spark Plug Prep in Stelvio Head (AC Engine Code)?
« Reply #4 on: April 28, 2018, 09:35:39 AM »
Not the same heads, the same cam tower.
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