Sluggish Yamaha 130.

patrolcarr

Petty Officer 3rd Class
Joined
Apr 13, 2003
Messages
96
I had a small problem yesterday on my 2000 Yamaha 130. I'm not sure if the plugs were fouled, but all of a sudden I wasn't getting full power out of the engine. At first I thought I was cavitating, because the response from the engine wasn't as forceful as it usually is. I had her at WOT, but she behaved as if she were at about 2/3's. Usually, if I put the engine into forward gear at a somewhat quick rate, I practically get whiplash, but yesterday the engine accelerated at a very slow pace. All the while, the engine just didnt sound as "smooth" as it usually does. The two things that come to mind right away: I just fueled up for the first time this season prior going out, maybe I got "bad gas". Prior to the new gas, the engine was running fine on the gas that had been in the tank over the winter. The other thing is that I still have last years plugs in place which I had wanted to use for the first few hours to burn up all the old gas/fogging oil from storage. Could that be the culprit? The engine has approx 265 hours on it and this is the first problem I have experienced in it performance. It is a sublte thing that my passengers didnt even notice, but as the operater/owner I sure as heck did! Does this sound like it could be a "bad gas" situation? Any thoughts or suggestions are greatly appreciated. Pat.
 

Ray Neudecker

Lieutenant Commander
Joined
May 25, 2004
Messages
1,656
Re: Sluggish Yamaha 130.

If you have a water seperator or fuel filter in the line, you may need to change them. It sounds like a fuel restriction. It needs to be corrected before you risk engine damage. I would go ahead and change the plugs also. Running the motor on a small tank is also a good way to troubleshoot the problem. At least get it troubleshot down to where in the system you need to be looking for the problem.
 

patrolcarr

Petty Officer 3rd Class
Joined
Apr 13, 2003
Messages
96
Re: Sluggish Yamaha 130.

Hey Ray, you've been a trusted buddy with good info in the last two posts. I actually did what you said. I changed the fuel/water seperator, and also did the fuel filter and plugs while I was at it. When all was done, she ran like a top. I'm feeling good once again. It was so nice to bring her out on to the water and have her run so smoothly. Thanks for the pointers. Hopefully one day I can reciprocate. Pat.
 

Ray Neudecker

Lieutenant Commander
Joined
May 25, 2004
Messages
1,656
Re: Sluggish Yamaha 130.

Happy Boating and thanks for leting me know I was right. This is considered a routine part of getting ready for the season.
 
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