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Category: General Tips
Oh No! My Jet Ski Sunk!! (Part 1 of 2)
(2 Stroke Ski)
First question is….. 4 stroke or 2 stroke? Water in a 2 stroke is in the crankcase so you need to get it out.
On 2 strokes, especially older skis, flipping and sinking is something that might happen, and if you ride aggressively probably will happen. It is possible to fill a 2 stroke engine with water and clear it and have no long term bad effects.
IMPORTANT NOTE: CLEARING WATER OUT OF AN ENGINE AFTER
Two Key Failure Points For Yamaha GPR And XLT Two Stroke Power Valves
The last of the Yamaha two strokes (99-06) were the GPR 1200 and 1300 and the XLT 1200. These are referred to as PV skis because of the presence of power valves.
There are two key failure points on these skis that can be prevented.
Read More “Two Key Failure Points For Yamaha GPR And XLT Two Stroke Power Valves” »
What Is A Power Valve?
When designing a two stroke exhaust system you can optimize it for top end or bottom end performance. An engine with max power at high rpms might be weak at lower speeds. The power valve is a small gate that fools the motor into thinking it has two exhaust chambers – a smaller one for low speed and when the valve opens, a larger one for higher speeds.
ACK, Stop Doing That You’re Going To Break It!
THE HOSE (FLUSH KIT) IS FOR FLUSHING SALT WATER AND DEBRIS OUT OF THE EXHAUST SYSTEM ONLY!!! This means it is NOT for testing and tuning on the trailer It is NOT REQUIRED (on any ski) for the water to be on to start the motor. If you want to test start a ski and…
Read More “ACK, Stop Doing That You’re Going To Break It!” »
