Maintenance Simplicity: KYMA Leads the Way

One of the key advantages of the KYMA K7 is its simple and low-maintenance propulsion system compared to V-drive, PWC-style jet boats (like Yamaha and Scarab), and traditional stern drives. KYMA’s system is designed to maximize time on the water while minimizing upkeep, failures, and costly maintenance routines.

KYMA: Minimal Maintenance, Maximum Reliability

· Oil Change: Every 50 hours

· Single grease fitting: Simple lubrication for American Turbine jet pump

· No gear case, no transmission, no exposed prop = fewer failure points

· No impeller to replace = no surprise breakdowns

· Winterization? Not required for most climates, simple flush and store

V-Drive: Higher Maintenance and More Failure Points

· Oil Change: Every 50 hours (similar to KYMA)

· Transmission & V-Drive Gear Oil: Change every 100 hours or 2 years

· Impeller Replacement: Required every 100 hours or 2 years

· Multiple lubrication points (rudder, prop shaft, etc.)

· Complex running gear: Prop, rudder, strut, shaft = more potential for damage in shallow water

· Winterization required on raw water-cooled engines = boat out of use for months

PWC-Style Jet Boats: Frequent Maintenance & Clogging Risks

· Twin Engine Oil Changes: Every 50 hours per engine (2x cost vs. KYMA’s single engine)

· Impeller Cleaning & Inspections: Prone to clogging with weeds, seaweed, and debris

· Frequent pump clean-out needed (Yamaha and Scarab pumps are prone to clogging with sea grass and seaweed)

· Wear ring in salt-water environments can swell causing damage

Stern Drives (I/O & Reverse Drive): The Most Complex & Costly Maintenance

· Oil Change: Every 100 hours

· Gear Lube Change: Every 100 hours or 2 years

· Impeller Replacement: Every 100 hours or 2 years

· Multiple grease fittings: Steering, gimbal bearing, shift cable

· Trim system maintenance required

· Winterization required = out of use for months

· More moving parts = more failure points

Maintenance Comparison Table

The Verdict: KYMA Makes Boating Easy

For boaters who want a low-maintenance, high-performance boat that allows them to spend more time on the water and less time in the shop, KYMA is the clear choice. With fewer moving parts, no exposed prop, and a simple yet powerful jet drive, KYMA reduces maintenance costs and headaches while delivering an unmatched boating experience.

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