jdawwggin25
Seaman Apprentice
- Joined
- Aug 12, 2009
- Messages
- 30
I have a 1987 aquasport CC with an 87 yamaha 115 on it. With help from this forum earlier this spring i was able to get the boat tuned up and running great. The original owner put 40W oil in the reservoir tank. Cleaned out all the oil and switched to 2 stroke TCW3 oil. Changed the 4 spark plugs with the correct ones for the motor, original mechanic put in different ones than what the motor called for. Changed out the lower unit oil with the 90W and greased everything needed. Added the fuel stabilizer to the gas like i was told to eliminate any carbon buildup. Also rewired all the electronics minus the guages and anything going to the motor. Pretty much just cleaned up the birds nest. First two times out on the lake, boat ran like a champ, never had her run so well. She didnt smoke, planned out quickly and pretty much only shut off on us 2 times while trolling, but it was just in gear with low rpms. Didnt think anything of it. The Tach for some reason pegged out to 7000 and didnt work but we just didnt run her high. Gas gauge quick working again, have had to rewire it 3 times and now again not working. Think i have a loose ground somewhere just havent been able to find it yet. However today, it took 10 minutes to get her started, not sure if she was flooded for some reason but once started ran fine. Took the boat 10 miles up to the top of the lake and was great until we started to wakeboard. The motor would all of the sudden increase and drop speed for no reason and shut off when in neutral. Went back near the ramps and hung out for a while then when about to head home she shut off again and couldnt get her started for about 5 minutes. I had to rev up the throttle to finally get her to turn over then high tailed it back to the ramps. For some reason when i would rev the throttle in neutral it would help to start the engine.
My guess is the gas or fuel filter/ water seperator or maybe just bad gas. Any thoughts or ideas, i have looked through the manual with no luck so far. Sorry for the long post.
My guess is the gas or fuel filter/ water seperator or maybe just bad gas. Any thoughts or ideas, i have looked through the manual with no luck so far. Sorry for the long post.