Question about Bikemaster Carburetor Synchronizing 4-gauge Set-Motocross Gear

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I need to know the right way to set carburetor on 1986 gmc g 2500

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Carbs are set by the temperature in your area you need to adjust itin the fall and in the summer

Posted on Jan 04, 2014

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1 Answer

Where is pcm/ecm on a 1986 gmc vandura 2500


Not certain on your year model, but some of these were under driver's seat.

Oct 09, 2016 | GMC Vandura Cars & Trucks

1 Answer

Air Condition Compressor


the seals will be available from an accredited ac specialist shop or they can give you the number to get from a bearing shop
if it is the seal then the compressor will have to be removed from the vehicle and that means evacuating the system and regassing correctly
get a quote for the job first as doing it your self could become very expensive

Aug 11, 2016 | GMC Cars & Trucks

1 Answer

Carb adjustment 1994 GMC throttle body carburetor


A 1994 model should have throttle body injection, not a carb.
There's nothing to adjust for fuel mixture. That is controlled by the engine computer based on 5 or 6 inputs.
The problem could be one of the injectors, or something else.

Feb 14, 2014 | Cars & Trucks

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I have a 1986 GMC 1500 with a 5.0 and stock rochester carb. The truck will start but you must keep gassing it as it won't idle. It kicks off every time. Any suggestions on how to fix this cold natured


fast idle speed screw, works off the fast idle cam which the choke adjustment sets, it works together by linkages. This is the raised idle speed setting you need to keep a cold engine running. First you set the idle speed by the idle speed screw with engine at normal operating temperature. Then you set the linkage up so the cam is on a raised step, throttle will be held on that raised step. then you can turn the idle speed screw to get idle at about 1500-1800 rpm. Now when you start engine cold, choke will set the fast idle cam on that raised step- when engine starts and runs it should be running at your fast idle setting. That's how it supposed to work, you just have to get everything adjusted right. I hate carburetors, they never stay adjusted right. Considering their complexity and small mechanical parts, no wonder.

Dec 24, 2013 | 1986 GMC C1500

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Diagram of connection of a G30 1986 van carburetor need vacumn hose connection diagram to reconnect carburetor with a 350 engine and quatro jet carburetor


I find this vacuum diagrams for 1986 Chevrolet Truck G30 1 ton Van 5.7L 4BL 8cyl (click over pic for zoom)...

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Fig. 136: 1986 5.7L engine-Federal with automatic transmission (G10, 20 and 30 models)

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Fig. 137: 1986 5.0L and 5.7L engines-California with automatic transmission (G10, 20 and 30 models)

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Fig. 138: 1986 5.7L engine-Federal with manual transmission (G30 heavy duty models)

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Fig. 139: 1986 5.7L engine-Federal with automatic transmission (G30 heavy duty models)

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Fig. 140: 1986 5.7L engine-California with manual transmission (G30 heavy duty models)

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Fig. 141: 1986 5.7L engine-California with automatic transmission G30 (heavy duty models)


Hope this helps; keep us updated.

Jan 20, 2011 | 1986 Chevrolet G20

2 Answers

Firing order diagram for 1986 GMC S15 2.8L


For this models:
1986 GMC S15/T15 4WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 4WD Jimmy 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD P/U 2.8 liter V-6 VIN "R"
1986 GMC S15/T15 2WD Jimmy 2.8 liter V-6 VIN "R"

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Hope helped woth this. Remember rated this help. Good luck.

Nov 24, 2009 | 1986 GMC S-15

1 Answer

I need a tail light wire diagram for a 1986 gmc seirra truck at no cost


I have the wiring diagrams if you need it. Send me your email and I will send you the wiring diagrams. It is a K2500 right? Outdoorsman592003@yahoo.com

Sep 08, 2009 | 1986 GMC K2500

1 Answer

1986 ford bronco 302 AOD - How do I know if it shifts into OD?


2500rpm is about right, it'd be about 3k in D

Dec 02, 2008 | 1986 Ford Bronco

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