r/jetski • u/Jackiechan20153 • 10h ago
Technical Issue Help would be most appreciated - wave runner problems.
Me and my dad have identical jet skis. 2005 yamaha vx 110
We got them 2 years ago at 70 hours each. They are at around 130 hours now each they have been great. And work super good. but they have lately began to do some really weird and annoying things. I am asking for help in diagnosis.
important information.
they work fine and go fast ( 57 mph )and all features normal once we get them running ... But lately they have been taking forever to start. .. I am talking. pushing the green button. 15-30 times... And trying to follow the manual on how to safely start it in water. All that.
Both of them are taking forever to start.. we even went and bought a battery powered battery helping booster thing with cables that connects to the battery it's an external mobile helper. It definitely helps a little bit... But even so the problem is not getting fixed it just helps them start faster gives the battery more juice I guess... At first cranks?
But it's struggling a lot. We recently changed the gas because we were using normal 87 and we've changed it to 91 or something. And we already have drained them of the old gas as well.. before we changed it so that it would take new gas. The problem has not gone away.
Only once we get these things started which is typically every single time thankfully. But only after we do and ride them for say an hour or two and have a blast. Do things go back to normal.
After we have rode them for an hour or so and had our fun we turn them off to park them at the doc to load them back up and once I turn them back on after I go and get the ski it starts back up IMMEDIATELY with no problem.
We throw our hands up so confused. They straight up would go 57 mph at that point.. just literally from that start give it some throttle boom. As if there was never any annoying problem of 15 minutes at the beginning...
And the temperature outside is about 80-90 degrees farenheit.
Can someone please help me figure out what's going on with these things? Me and my dad would like to avoid the mechanic route at least for a little bit longer maybe this could be fixed with buying parts ourselves.
Any help would be appreciated.