KEMIMOTO Finger Throttle for Wave Runner & Kawasaki — Sliver-Black Aluminum, 6mm Adaptor, Ergonomic Control

KEMIMOTO's finger throttle assembly is a sliver-black aluminum alloy replacement and cable adaptor engineered to give Wave Runner and select Kawasaki Jet Ski models smoother, more ergonomic throttle control.

This compact finger throttle kit replaces a traditional thumb-style control and includes a 6mm threaded adaptor to attach to the throttle cable slack adjuster. Built from lightweight aluminum alloy with corrosion-resistant finish, it’s designed to fit a wide range of Wave Runner and Kawasaki Jet Ski models (covers pre-1996 Wave Runners and many Kawasaki models from 1996 and up). The ergonomic finger-operated design helps reduce wrist strain and makes incremental speed inputs easier while riding.

Which Jet Ski and Wave Runner models will this throttle fit?

The KEMIMOTO finger throttle is made to work with older Yamaha Wave Runners up to 1995 when used with the included 6mm threaded adaptor. It also supports many Kawasaki Jet Ski models from 1996 onward, including JS300, 440, 550 and several Blaster series versions. Verify your cable type and thread size before ordering to ensure a proper match.

• Threaded adaptor: 6mm for slack adjuster compatibility
• Pre-1996 Wave Runners supported with proper cable type
• Kawasaki compatibility: JS300, 440, 550, Blaster 650/701/750/760/800/1100
• Check cable style—choose adaptor if needed

How does the finger throttle improve comfort and control on the water?

Unlike thumb throttles, this finger throttle lets you modulate power by pressing with one or more fingers, which distributes force across a larger surface and reduces thumb strain. The ergonomic angle and textured contact surfaces help maintain grip when wet, so riders can make finer speed adjustments in tight maneuvers or choppy conditions.

• Ergonomic profile minimizes hand and wrist fatigue
• Textured contact area improves wet grip
• Finer throttle modulation for smoother power delivery
• Lightweight aluminum reduces added handlebar weight

What materials and finishes are used, and will it resist saltwater exposure?

The housing and adaptor are machined from aluminum alloy with a sliver-black finish that provides basic corrosion resistance and a low-gloss aesthetic. While aluminum alloys are lightweight and durable, regular rinsing and preventive maintenance will extend service life in saltwater environments. Fastening hardware uses plated steel—periodic inspection is recommended.

• Machined aluminum alloy body for strength and low weight
• Sliver-black corrosion-resistant surface treatment
• Plated steel fasteners—inspect for corrosion periodically
• Rinse after saltwater use to prolong life

How do I install the KEMIMOTO finger throttle and adapter?

Installation requires removing the existing thumb throttle and mounting the finger throttle to the handlebar, then connecting the 6mm threaded adaptor to the cable slack adjuster. Basic hand tools suffice; if you’re unsure about cable routing or thread fit, consult your service manual or a qualified technician to avoid misalignment.

• Remove original throttle and clean mounting area
• Attach finger throttle to handlebar clamp and align ergonomically
• Use 6mm threaded adaptor to connect to throttle cable slack adjuster
• Test throttle travel and adjust cable slack before riding

Who is this for? The KEMIMOTO finger throttle with adapter is aimed at recreational riders and DIY mechanics who want improved ergonomic throttle control on older Wave Runners and many Kawasaki Jet Skis. It’s ideal for riders experiencing thumb fatigue, those seeking finer speed modulation, or anyone replacing a worn thumb throttle and preferring a finger-operated option. If you frequently ride in saltwater, pair the unit with routine maintenance to preserve finish and function.