Question about 1986 Suzuki Samurai

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Vacum diagrahm trying to get my 86 samuri with new carb to pass smog test, need carb vacuum diagrahm.

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Go to acks facts 4x4 suzuki forum vacuum diagram

Posted on Oct 23, 2009

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1 Answer

How do i set mass air flow valve so it does run too lean to pass ca smog on 86 944 porsche


No way to "cheat". Master emissions mechanic is the only solution.

Apr 08, 2015 | 1986 Porsche 944

1 Answer

Lean fuel mixture


which engine? lots of engines on 86, lots swapped too.
to work on any car engine wise this is first, ID the engine.
then the Fuel system. carb or EFI.?

lean fuel mix can be caused by.
well gee what engine, and is it EFI, nah , not in 86 its a carb.
if a carb you really need to say so as many a mech never seen one.
today. gone now for 27 years. 87 to present.

i cut teeth on carbs. in 60s
a love/ hate thing,,, today i have fancy tools, that mean them easy.
my comments are USA only , as export jeeps are vastly diffr.
I had a 88 (2 of them same time) then a 99, then a 2002 then 2008
1/2 million miles on them or more.

vacuum lines are easy, replace em or inspect test them.
if they look cracked they are roll them between fingers.
or use a hand vacuum tool attached and do a leak down test on all .
or pinch them running to see if RPM changes radically.

ill answer for CARBS (in order of likely)
  1. dirty carb. (inside)
  2. jets clogged or partially.
  3. flow level set too low.
  4. float valve sticking closed. gummy. see #1
  5. fuel pressure low. to CARB. the FSM has spec, here .
  6. lean under heavy load is power jet stuck closed , see #1
  7. lean only for an instant, fast right foot, means the accelerator pump is dead, fix it . clean carb and kit it. and it need to be adjusted per the manual. FSM.
  8. sure any air leaks below the carb cause lean... lots of ways.

Mar 10, 2014 | 1986 Jeep Cherokee

1 Answer

1989 Honda Prelude, passed all smog tests except idles at 1100rpm...what's the problem?


start spraying carb cleaner around the intake and listen for rpm drop.

Oct 09, 2012 | 1989 Honda Prelude

1 Answer

1986 Toyota new rebuilt motor won't pass smog at


It depends which emission you are failing on but I suspect that it is either CO or NOx. If it is NOx, then it is quite possible that you have a problem with your EGR valve or the ignition timing is incorrect. If you failed CO, you may have a dirty air filter or indeed, a bad carb, but I would need to know the actual gas and readings to be certain.

Jun 09, 2011 | 1986 Toyota Pickup 4WD

1 Answer

85 Pontiac Fiero - passing a smog testing


Could be vacuum or O2 sensor maybe using cheap fuel.

Aug 03, 2009 | 1985 Pontiac Fiero

3 Answers

Need to figure out where my vaccum lines go off of my carb on my 81 cj7


on the radiator support, you'll find the vacuum diagram , easy as a road map to read, for some. If this is a replacement engine, go with the basic line configuration of; vacuum advance, automatic tranny vacuum line, temperature controls if vacuum operated, fuel tank canister. Don't be surprised to see you can block a number of vacuum fittings off the carb. If emissions is an issue, you will want to google the info. List the name, make, model and search on google for the vacuum diagram

May 12, 2009 | 1984 Jeep CJ7

1 Answer

1985 toyota pickup.22r,automatic trans,2 barrel carb,ca smog. rough idle until engine hits thermostat.passes smog.all vacume lines fine,and zip tied.


There ar two thermo vacuum switches on the intake manifold,one in the center top by the EGR pipe right next to the valve cover,and one center bottom on the outside right below the carburator,it may be that one of them is not fully opening/closing when the motor is cold.I'm not sure on this as I've never had this problem with my 22R's,hopefully this will point you in the right direction,if you want comment back and I'll research this further(it's 5 in the morn and I cant access my 22r manual)

May 01, 2009 | 1985 Toyota Pickup

1 Answer

Engine rough idle cold. passes smog once temp reaches thermostat


you can take apart the top section and blow out the small passage that's bellow the throttle plate.

May 01, 2009 | 1987 Toyota Tercel Liftback

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