1975 Carb nightmare (1 Viewer)

Joined
Sep 15, 2008
Messages
698
Location
Pittsburgh,PA
Got my 75 i saved from being parts on ebay runnin again but...

It starts GREAT with the manual choke closed....idles nice but soon as you open the choke it wants to die...even if you give it throttle

This was "partially desmogged" when I got it and I, along with my friend Tom with his 78, attempted to reconnect and disconnect what seemed to make sense and match his as close as possible...

but it still dies with an open choke....even once pretty warm too

the 2 ideas ive heard/think so far are vacuum leak or internal carb probs................any ideas?
1975 Toyota FJ40.jpg
plumbing.jpg
xmas fj 1.jpg
 
Joined
Aug 4, 2009
Messages
7,557
Location
New Hampshire
Grab a can of carb cleaner and spray it along the intake manifold gasket, vacuuum lines, brake booster, etc...Anywhere there could be a vacuum leak. The engine will rev whenever you spray into a vacuum leak.
 
Joined
Aug 26, 2009
Messages
11,651
Location
down in a hole.
Ala Pin_Head, you need 12 volts at the solenoid on the back side of the carb. Normally would come from smog comp., so maybe it's not working. You could give it keyed 12 volts w/o having to go thru the computer
 

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