OK here it is. Did a decarb on my carbed merc before winterizing and used the Merc power tune. Let it sit a few hours and took it up the lake for a run. She started (Smoked like a pig but soon cleared) went for a run and it shutters and vibrates wicked bad under load and will not rev under load. Normal WOT speed is 42mph trimmed and light. I can not get her over 27 mph trimmed and light. Changed out the plugs thinking the decarb fould a plug or 2. Same problem. Changed filters and took a fuel sample thinking it was unrelated to the decarb and i just got some bad fuel. Fuel is clean. Ran it on a 6 gallon remote tank still the same.

Going to start the process of elimination to determine what the problem is but wondering if anyone has any advise as to what i may want to look at first..

The motor runs smooth at idel and starts easy. It is a little tempermental when starting cold but it always has been. The throttle is also very responsive in nutral. It makes no unusual noises when starting or running and does not smoke more then usual.

Any advice or coments are welcome.

The motor was running good today. Was idling around a bridge fishing, no problems. When I went to give it gas to fish another bridge the motor started to shutter like it was hitting the bottom or something. Lifted the motor no rope in the prop was in 30 foot of water. Idled for a mile tried it again same deal. No horn or light. Motor has 160 hours on it. Use seatron ethanol stuff all the time. Got back to the hill, started right up on the hose, Could rev the enigne with no hint of a miss or skip. Any help would be great. Im off all week and want to fish

Can someone tell me if my 2006 Yamaha F115 is NMEA 2000 compatible ?
Would like to connect my Lowrance 8200c to my Yamaha :)

I just bought a 1994 Parker with a 2002 Yamaha F225. The engine looks pristine, runs perfectly and only has 76 hours on it.

Took it out today for the first time and the engine oil is leaking out very quickly from the lower unit. Previous owner claims to have had it completely checked out by a certified Yamaha mechanic before I took delivery. He also said this mechanic told him to fill it half way on the dipstick because filling it to the full line would make it overflow when running. This seems counter intuitive in retrospect. Did not seem to leak when it was on the trailer, only in the water.

Any advice on likely causes of this or logical course of action would be much appreciated.

I have a 2001 Mercury 150 EFI. When I primed the fuel bulb today I got a stream of gas coming from what looks like a releif hole on a small brass elbow. Going into this elbow is a small clear tube that runs to the fuel pressure regulator on the VST. The motor started and ran fine but I wonder what is causing this leak?

My motor is really giving me a fit. It fires right up on the first pull. After taking the choke off, I can't get the motor to get over anything more than idle. If I try to give it some gas the motor dies out. I can't even get the throttle past the start indicator on the tiller handle without the unit dying off. Thanks for your help!

I have a 2003 Suzuki DT225 with 330 hours..mine since new. Just started a month or so that when I shift from N to fwd I get a GRRRRR and then it shifts into gear. I get a minimal noise going into rev most of the time. Is this an adjustment problem or do I need new throttle and shift cables. The throttle does not appear excessively stiff , or any stiffer than in the past..thanks

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Dear A1,

I have a 2004 yamaha four stroke 225hp. Over the summer the engine blew up so I sent it off to you guys. You'll rebuilt the engine and ship it back to me in no time. I was very impressed with your service. I have ran the engine for a month now and not had any problems with it but one thing. The engine runs great at idle, cruse and top end. The problem is my top end is only reving at 5300RPM where before it reved at 6000 RPM lowering my topend speed. I am running the exact same prop as I did before being rebuilt and running in the same conditions. Is this a tunning problem that can be fixed easy or a rev limiter problem?
Thank you for your time,
Bradley Gray

I have a 1999 175 evinrude ficht. I am getting a NO OIL light with horn intermittently. once the engine is turned off and restarted there is no problem. The oil tank was full when this happened. Is this a false warning?

any suggestions?

E Tec 2007 150s 25in 2 available $7800
E Tec 2006 200HO 25in $7600
E Tec 2006 90 20in 3 available $ 4700
1999 Johnson Ocean Pro $5900
1999 Johnson venom 225 $5900
2001 Johnson 4 stroke(Zuki) $7400
2004 115 johnson 2 stroke 20in $4400
2002 25 Johnson 25 $2200
1995 60 Johnson 20in $3300
1998 175 Johnson Ocean Pro $5500
1999 150 Johnson Ocean Pro 20 or 25 shaft (2) available $5500
1995 50/35 SS Jet $3600
1998 90hp Johnson $3800 20or 25 shaft
2000 90hp Johnson $4200 20in shaft
Yamaha 4 stroke 225 25in (2)available $8000
Yamaha 4 stroke 115 (2) available $$4900
Yamaha 4 stroke 100 $4400
Yamaha 90 4 stroke $4400
Yanaha 225 V Max 2005 20in $7800
Yamaha oX66EFI (3)available $6200
Yamaha 250 OX66 25 or 30in $6700
Yamaha 2005 250 4 stroke $8700
Yamaha 2001 V MaxOX66 150 20in $5800
Yamaha 50/35 SS Jet $3600
Merc 1999 200 EFI $5700
Merc 2001 blue water 200(3) available
Merc 2003 20in shaft $5200
Merc 2004 150 $6100
Merc 2004 125 (2) available $4300
Merc 90 4stroke 2003 $4600
Merc 40 2001 $2800
Merc 40 Tiller $3700 2004
Merc 25 2002 El long $1300
Merc 90 2 stroke 2002 $$3900
Merc 115 2 stroke 2001 $4200
Merc 2006 ProXs (3 )available $8400 20 or 25 in
Merc 2009 250ProXS $9200(2) 20 or 25in shaft
Merc 225 ProXS 2005 $7900
Merc 250 or 300 Pro XS HP complete changover for your motor...$6700
Tohatsu 2000 90hp $3900 20in
Tohatsu 30hp (4) available $850 tru $2300
Honda 90 hp 20in $3200
Honda 30hp 20in $1800
IF Ya Dont see what you want call more avaailaable

I have a 19p 3 blade and want to switch to a 4 blade. I was told you drop 1 pitch number when you go to 4 blade. Is that correct?

I would like to install a trim guage on my motor so I'm not always looking back to see what position my engine is in. Does anyone know what wires to use? Is it even possible on this model? What type of trim guage will I need? thanks.

going to change spark plug, trying to find gap setting also i know they have to be indexed towards fuel injectors but how close should you get them as far as indexing.another question, this motor seems to start hard when cold , it takes several trys before it will start, it pops when it turns over than you have to try again and again several times and when it does start it runs a little rough for just abit then clears out then runs fine. fuel filters changed, brand new fuel pump assembly. realisticaly how many atempts should it take to start this engine. another observation ive noticed is it seems to start harder when in water as compared to when on muffs in driveway. thanks for any input css

I'm in the process of storing my boat and when I went to tilt the motor up to put it on the support lever, it made a bit of a grinding noise and only went up a few inches. The tilt motor would run but the motor wouldn't budge. I put the batteries on a charger thinking that might be the problem but it didn't help. Any ideas? There's plenty of trim/tilt fluid in it.
Thanks for any help!
Chris