Where's the progress?

[shy]

My 2002 T9.9 Yamaha is nothing but grief. Despite Herculean efforts with filters and gas stabilizers, it refuses to run. The carb is so complicated, my degree in mechanical engineering doesn't help me fix it.

Back in the 70's, I owned a British Seagul 2 stroke 7.5 hp pusher on our sailboat. That engine took is down the Mississippi from Illinois, several seasons in the Bahamas and Florida, and cruises to Jamaica and the Mediterranean (boat was shipped across the ocean twice). It had a few breakdowns, mostly in the lower unit due to hitting debris in the water. I was
able to fix everything myself. It was a simple and reliable engine. Enter the
Yamaha. Sure it is quieter, no need to mix oil in the gas, more power but it breaks down at the most inconvenient times. Luckily, I have a sail to move the boat or I would have found myself atop a rocky breakwater. Both Yamaha
dealers near my boat are booked up for weeks in advance. There goes the sailing season. Yamaha is refusing to really solve this problem. Well, I guess that is progress.

 

[robert graham]

Re: Where's the progress?

Yep, that's the price of progress. My old Tanaka 2 stroke, 3HP is totally dependable, very easy and simple to work on, carb has one jet, one needle and a float, really nothing to mess up. If you can get your Yamaha running correctly and IF you can keep clean, fresh gas in it, then it will most likely run great, but the water/ethanol/crud/whatever wreaks havoc with those tiny little carb jets, injectors, filters, screens, etc. The Yamaha electrical systems are pretty much bullet-proof. Good luck and keep the faith!

 

[rodbolt]

Re: Where's the progress?

that T9.9 has an incredibly simple carb.
most blow boaters have the attitude that the wind is free and everything else outta be, hence using 5 year old gas cause its still in the tank.
gotta keep fresh fuel and a clean fuel system or they all die.
best I recall that seagull held about a qt of fuel.