Naraku Dellorto 5mm Main Jet Kit Sizes 90-110

Dial in your 2-stroke carburetor with confidence using the Naraku 5mm Main Jet Tuning Kit. Whether you're compensating for altitude, an aftermarket exhaust, or a performance air filter, having the right jet on hand makes all the difference. This 10-piece brass jet set covers a wide tuning range in a compact, organized storage case — so you can test, swap, and find your perfect fuel mixture without waiting on individual orders.

What's Included

• 10 Brass Main Jets in the following sizes: 90, 92, 94, 96, 98, 100, 102, 105, 108, 110
• Naraku Branded Storage Case with individual foam-lined slots to keep jets organized and protected

Key Features

• M5x0.80 Thread: Fits Dellorto carburetors that use a standard M5 main jet — typically found on 19mm carbs and larger.
• Wide Tuning Range: Sizes 90–110 cover lean-to-rich jetting for most 2-stroke performance tuning scenarios.
• Precision Brass Construction: CNC-machined brass jets for accurate orifice sizing and consistent fuel delivery.
• Compact Storage Case: Keeps all 10 jets organized, labeled, and ready for trackside or garage use.
• Naraku Quality: Trusted European performance brand for 2-stroke scooter and moped tuning.

Compatible Carburetors & Vehicles

Designed for Dellorto carburetors using M5x0.80 main jets, commonly found on:

• 2-stroke Yamaha Zuma (BW's)
• Aprilia 2-stroke scooters
• Malaguti 2-stroke scooters
• Derbi 2-stroke scooters
• Other 2-stroke scooters and mopeds with 19mm or larger Dellorto carburetors

Technical Specifications

• Thread Size: M5x0.80
• Jet Sizes Included: 90, 92, 94, 96, 98, 100, 102, 105, 108, 110
• Quantity: 10 jets + storage case
• Material: Brass
• Application: Dellorto carburetors, 19mm and larger
• Manufacturer: Naraku

Tuning Note: M5 main jets are generally used in 19mm carbs or larger. Always start with your stock jet size and work up or down in small increments. A properly jetted engine runs cleanest at full throttle with a slightly tan-colored plug.

• 10-Piece M5x0.80 Brass Main Jet Set
• Sizes 90 92 94 96 98 100 102 105 108 110
• Fits Dellorto 19mm and Larger Carburetors
• Naraku Branded Foam-Lined Storage Case
• CNC-Machined Precision Brass Construction

Thread: M5x0.80 | Sizes: 90, 92, 94, 96, 98, 100, 102, 105, 108, 110 | Qty: 10 jets + case | Material: Brass | Application: Dellorto 19mm+ carbs

2-stroke Yamaha Zuma, Aprilia, Malaguti, Derbi, and other 2-stroke scooters/mopeds with Dellorto 19mm+ carburetors using M5x0.80 main jets