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Felicia ThompsonSep 8, 2025
Why SeaDoo GTX 4-TEC Supercharged engine hard to start?
- JJoseph PriceSep 8, 2025
If your SeaDoo Boat engine is hard to start, it could be due to a defective idle bypass valve, a wrong TPS zero setting, throttle cable adjustment issues, temperature too low for available battery capacity, an air lock in the fuel rail, water in the intake system, water or contamination in the fuel reservoir, mechanical engine failure, a faulty spark plug, or low fuel pressure. If the temperature is too low, the battery capacity is not sufficient for cold temperature. Flush the reservoir and refill with fresh gas if there is water in the fuel reservoir or contaminated fuel. Check the spark plug condition.










