To set the engine idle for a 350 engine, first, ensure the engine is at normal operating temperature. Then, locate the idle adjustment screw on the carburetor or throttle body and turn it to increase or decrease the idle speed as needed. Typically, the idle speed should be between 600 and 800 RPM for a 350 engine, but consult the owner's manual for specific recommendations. Finally, recheck the idle speed after adjustments and make sure the engine runs smoothly without stalling.
set the idle down on the carb
800 rpms.
To set the idle screw on a 1997 Yamaha 350 Big Bear, first warm up the engine to its normal operating temperature. Locate the idle adjustment screw on the carburetor, which is typically found on the side of the carburetor body. Turn the screw clockwise to increase the idle speed or counterclockwise to decrease it, adjusting until the engine idles smoothly at around 1,200 RPM. Finally, ensure that the throttle responds properly without stalling or racing.
A general number for timing is around 10 but that can change based on the engine setup. The idle speed also depends on the set up but its about 900-1000 and 700-800 in gear with a stock engine.
The duration a 350 engine can run on a gallon of gas at idle varies based on several factors, including engine condition and idle speed. On average, a small block Chevy 350 engine consumes about 0.5 to 1 gallon of fuel per hour while idling. Therefore, you can expect it to run for approximately 1 to 2 hours on a gallon of gas at idle. However, actual performance may vary.
The proper idle speed for a 350 C10, typically found in Chevrolet trucks from the 1970s to early 1990s, is usually set between 600 to 800 RPM when in park or neutral. It's essential to adjust the idle speed according to the specific engine setup and any modifications made. Always refer to the vehicle's service manual for the recommended specifications based on your engine's configuration and conditions.
how do you set timing on a 1985 350 gmc truck
If it is an older 350 the idle may simply be set too low. The next most common problem is low fuel pressure caused by a dirty fuel filter or weak fuel pump.
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There is no adjustment on a TBI fuel system, The Idle is controlled by the computer You need to check the Idle speed control solenoid. You can find that on the top left rear side of the TBI housing. It screews in, and is about 4 inches long with an electrical connecter pluged into it. Also check for a vacuum leak. If the check engine light is on then you need to scan engine with a engine scanner FIRST.