Brosol/Solex Idle Jets .60

OVERVIEW

Precision tuning is the heartbeat of a high-performing air-cooled engine, and nothing dictates your Volkswagen''s street manners more than the idle circuit. The EMPI Brosol/Solex Idle Jet in .60 size is an essential component for enthusiasts looking to eliminate that frustrating off-the-line stumble or "flat spot" often found in modern driving conditions. In the world of classic VWs, the transition from the idle circuit to the main discharge is where most drivability issues occur. By upgrading to a .60 jet, you are providing a slightly richer fuel mixture during this critical phase, ensuring that your Beetle, Bus, or Ghia pulls away from a stoplight with smooth, consistent power rather than hesitating. Whether you are running a stock displacement 1600cc or a mildly built street engine, having the correct orifice size is the difference between a temperamental machine and a reliable daily driver.

At Appletree Automotive, we know that modern ethanol-blended fuels burn differently than the gasoline available when these cars were first engineered. Today''s pump gas often causes vintage engines to run lean, leading to increased cylinder head temperatures and poor throttle response. These precision-machined brass jets are designed to meet the exacting standards of Brosol and Solex carburetors, providing a perfect fit and a calibrated flow rate that you can trust. Installing a .60 idle jet is one of the most cost-effective performance "hacks" for the classic Solex 34 PICT-3 or the Brosol H40/44EIS dual carb setups. It allows for a finer degree of adjustment at the mixture screw, giving you the ability to achieve that perfect, steady "thump" at idle while protecting your engine from the dangers of a lean-burn condition at low-to-mid RPM ranges.

FITMENT

This .60 idle jet is designed for use with a wide variety of Solex and Brosol carburetors commonly found on air-cooled Volkswagen models. Please verify your carburetor type before ordering. Fits the following applications:

• VW Beetle & Super Beetle: 1950-1979 (Equipped with Solex 30 PICT, 31 PICT, or 34 PICT series carburetors).
• VW Karmann Ghia: 1956-1974 (Equipped with factory Solex or replacement Brosol units).
• VW Bus / Transporter / Type 2: 1950-1971 (Single carb 1600cc engines or dual Brosol setups).
• VW Thing / Type 181: 1973-1974.
• VW Squareback, Fastback, Notchback / Type 3: 1961-1973 (When converted to single or dual Solex/Brosol carburetors).
• Carburetor Specifics: Fits Solex 28 PICT, 30 PICT-1, 30 PICT-2, 30 PICT-3, 31 PICT-3, 31 PICT-4, 34 PICT-3, 34 PICT-4, and Brosol H40/44EIS.

SPECS

Each jet is manufactured to strict tolerances to ensure accurate fuel metering. Below are the technical specifications for the 43-5060-7 idle jet:

• Jet Size: .60 mm (0.60).
• Material: High-quality, corrosion-resistant machined Brass.
• Thread Pitch: Standard Solex/Brosol side-mount idle jet threading.
• Part Number: 43-5060-7.
• Manufacturer: EMPI.
• Sold As: Individually (Each).
• Function: Controls fuel delivery from idle up to approximately 2500 RPM.

PRO TIPS

Pro Tip 1: Solving the 34 PICT-3 Hesitation. If you are running the iconic Solex 34 PICT-3 carburetor and experience a "flat spot" or hesitation right as you tip into the throttle, the factory .55 idle jet is often the culprit, especially with today''s 10% ethanol fuels. Swapping to this .60 idle jet often provides just enough extra fuel to bridge the gap between the idle circuit and the main jet, smoothing out your acceleration and making the car significantly more enjoyable to drive in city traffic.

Pro Tip 2: Installation and Tool Selection. When installing these brass jets, always use a hollow-ground flathead screwdriver that fits the slot perfectly. Brass is a soft metal, and using a driver that is too small or too thin will "chew up" the head of the jet, making it nearly impossible to remove later. Additionally, do not over-tighten; the jet only needs to be snug enough to prevent fuel from bypassing the threads. A light touch ensures the jet remains reusable for future tuning sessions.

Pro Tip 3: Cleanliness is Key. Before installing your new .60 jet, use a shot of aerosol carburetor cleaner followed by compressed air to blow out the idle jet passage in the carburetor body. Even a tiny speck of debris can clog a .60 orifice, leading to a rough idle or stalling. If you find yourself constantly adjusting your idle mixture screw without any change in engine RPM, there is a high probability that your idle jet is partially obstructed. Always inspect your fuel filters whenever you are performing jetting changes to ensure no new contaminants reach your freshly tuned carb.