Cold Start Jet Kit TUSK Fuel Jet System 100/15

Description

Product Overview

The TUSK Cold Start Jet Kit is engineered for riders who struggle with hard starts and prolonged choke periods on off‑road motorcycles and powersports vehicles. Constructed from high‑temperature resistant brass, the kit includes a 100‑size main jet and a 15‑size pilot jet, each precision‑machined to exact tolerances. The compact dimensions (3 x 3 x 0.25 inches) and lightweight design (0.16 ounces) make installation straightforward without adding bulk. Designed to integrate seamlessly with existing fuel delivery systems, the kit optimizes fuel atomization, delivering a richer mixture during cold starts while maintaining efficient flow at operating temperature.

Usage

This jet kit excels in environments where temperature fluctuations challenge engine performance—mountain trails, early‑morning rides, and high‑altitude tracks. Riders who frequently encounter cold mornings or who use carbureted engines will notice a dramatic reduction in choke activation time. The kit is suitable for a wide range of powersports applications, including dirt bikes, ATVs, and small‑displacement motorcycles. Installation requires basic hand tools and can be completed in under an hour, making it a practical upgrade for both DIY enthusiasts and professional mechanics.

Why Choose Us

TUSK has a reputation for durable, performance‑focused components in the off‑road community. Each jet is tested under extreme temperature cycles to ensure consistent flow rates and resistance to corrosion. The kit comes with a detailed installation guide and lifetime technical support, guaranteeing that riders receive both a quality product and the expertise needed for optimal setup. Our commitment to precision engineering means you get a product that not only solves cold‑start issues but also enhances overall engine responsiveness.

Key Features

• High‑grade brass construction for durability and heat resistance
• 100 main jet paired with 15 pilot jet for balanced fuel delivery
• Reduces choke activation time by up to 50% in cold conditions
• Improves idle stability and adds low‑end power
• Easy bolt‑on installation with comprehensive guide

FAQ

Will this kit fit my carburetor?

The TUSK Cold Start Jet Kit is compatible with most standard carburetors used on off‑road motorcycles and ATVs. Refer to the included fitment chart or contact our support team with your model details for confirmation.

Do I need to adjust other jets after installation?

In most cases the kit works as a plug‑and‑play solution. However, fine‑tuning the idle mixture screw may be necessary to achieve optimal performance based on your specific engine and riding conditions.

Can I install the kit myself?

Yes. The kit is designed for DIY installation with basic tools. The step‑by‑step manual walks you through removal of the stock jets, cleaning the jet seat, and installing the new components.

Is the kit covered by a warranty?

All TUSK jet kits come with a limited lifetime warranty against manufacturing defects. Register your product on our website to activate warranty coverage.

Will this affect fuel economy?

The kit is calibrated to provide richer fuel only during cold starts and initial idle. Once the engine reaches operating temperature, fuel flow returns to normal, so overall fuel economy remains largely unchanged.