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Main : Misc : Tech Section 1973 changes - north american model

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1973 changes - north american model
1973 changes - north american modelPopular
SubmitterddgonzalMore Photos from ddgonzal   Last Update2005/7/22 7:16    Tell a friendTell a friend
Hits3125  Comments2    0.00 (0 votes)0.00 (0 votes)
carburetor changes

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Poster Thread
ddgonzal
Posted: 2005/7/22 7:18  Updated: 2005/7/22 7:18
Moderator
Joined: 2001/5/3
From: 48 North
Posts: 31599
 Re: 1973 changes - north american model
It says:Quote:
- Anti-dieseling Solenoid
The idle speed is increased for 1973. Thus, to prevent "dieseling," an ant-dieseling solenoid is added.
As the ignition key is turned to "OFF", current will not flow through the solenoid, causing the fuel passage for the slow circuit to close. This in turn shuts down teh engine without "dieseling."
Whevenever a solenoid is defective, replace it as an assembled unit.

Poster Thread
ddgonzal
Posted: 2012/11/6 20:22  Updated: 2012/11/6 20:22
Moderator
Joined: 2001/5/3
From: 48 North
Posts: 31599
 Re: 1973 changes - north american model
Quote:
The idle speed is increased for 1973. Thus, to prevent "dieseling," an ant-dieseling solenoid is added.
Just a 50 RPM change is difference between running-on and stopping cleanly:

North America specs
1972 A12 manual: 700 rpm
1973 A12 manual: 750 rpm

1972 A12 automatic: 600 rpm in drive
1972 A12 automatic: 650 rpm in drive