Pilot Screw Adjustment for the Recon 250 ('97 and up) This may also be suitable information for the same year 250SX quad. Note: -The pilot screw is factory pre-set. Adjustment is not necessary unless the carburetor is overhauled or new pilot screws are installed. -The engine must be warm for accurate adjustment. Ten minutes of stop-and-go riding is sufficient. -Use a tachometer with gradations of 50 rpm or smaller that will accurately indicate 50 rpm change. 1. Turn the pilot screw clockwise until it seats lightly, then back it out to the specification given. CAUTION: Damage to the pilot screw seat will occur if the pilot screw is tightened against the seat. TOOL: Pilot screw wrench 07908-4220201 INITIAL OPENING: '97 (except California type): 2 7/8 turns out '97 CA type: 2 3/4 turns out '98 - 2001: 2 5/8 turns out After 2001: 2 turns out 2. Warm the engine up to operating temp. 3. Stop the engine and connect a tachometer according to the tach. manufacturer's instructions. 4. Start the engine and adjust the idle speed with the throttle stop screw. IDLE SPEED: 1,400 +/- 100 rpm 5. Turn the pilot screw in or out slowly to obtain the highest engine speed. 6. Readjust the idle speed with the throttle stop screw 7. Turn the pilot screw in gradually until the engine speed drops 100 rpm. 8. Turn the pilot screw counterclockwise the number of specified turns. FINAL OPENING: '97 (except CA type) 3/4 turn out '97 CA type/'98-2001: 7/8 turn out After 2001: 1/2 turn out 9. Readjust the idle speed with the throttle stop screw. For those who do not know, the throttle stop screw is on the right side of the carb. right behind the mounting stud where the carb. attaches to the intake rubber. The pilot screw is on the front center underneath side close to the engine cylinder. The above info. was taken from Honda's '97-'04 Recon service manual, and I hope this helps many. Print it out, and get it covered with your greasy fingerprints, and then throw it away! I do not have a tach or a pilot screw wrench, but I do have ears and a screwdriver. I used these baseline settings to dial my wife's bike in perfectly. You can too.
2001 Honda 400ex Carburetor
Amazon.com: honda 400ex carburetor. Air Fuel Mixture Screw CNC Adjust Carb FCR Air Screw for KEIHIN Carburetor Four-Strokes FCR Carbs Honda KTM Yamaha Suzuki Motorcross Motorcycle (Silver). DP 0118-102 Carburetor Float Valve Needle Fits Honda. 4.5 out of 5 stars 7. Get it as soon as Tue, Nov 3.
Rebuilding Honda TRX 400EX Carburetor. Install the new idle jet, the main jet holder and the air-mixture adjustment needle (all included in the carburetor kit), not forgetting the adjustment needle’s washer and O-ring (also included in the kit). NOTE: When installing parts made of brass (the jets and needles), be very careful not to overtighten them because brass is a soft metal.
1999 Honda 400ex Carburetor
Carburetor Carb Rebuild Kit Repair for Honda TRX400EX 400EX TRX 400 EX 1999-2004. Specification: 100% Brand New and High Quality. Each kit contain all necessary parts, such as jet needles, main and slow jets, float chamber gaskets, and float valves. Fits Models: Honda TRX400EX 400EX TRX 400 EX. Pilot Screw Adjustment for the Recon 250 ('97 and up) This may also be suitable information for the same year 250SX quad. Note:-The pilot screw is factory pre-set. Adjustment is not necessary unless the carburetor is overhauled or new pilot screws are installed.-The engine must be warm for accurate adjustment. The Honda FourTrax 300EX is a small all-terrain vehicle (ATV) that has a lot to offer. This ATV is a cross between a sport quad and a sportsman. The 300cc four-stroke engine produces a lot of power and torque. Only newer FourTrax 300EX models have fuel injectors; earlier model have carburetors.