Recent content by sunbird 18

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    225 OX66 small rpm reduction when using trim at speed....Normal?

    2001 Yamaha 225 OX66 SX225TXRZ. When cruising at lets say 4000rpm and I use the trim switch on the controls, I notice a slight, 100-150, rpm reduction while operating the switch. The rpms return to 4000 after letting off the switch. I am just trying to understand what causes this. Hitting...
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    RODBOLT-- 01 225 OX-66 O2 sensor readings?

    I just got my o2 sensor diagnostic sensor harness in today. I am trying to troubleshoot a high rpm running condition. When I first run the boat away from the dock, I get about 5300 rpm. After it gets good and hot after about 20-30 minutes, I only get about 5000rpm and I can feel the engine...
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    Another satisfied HYDROFOIL customer!

    I have a 20' center console with a 225 outboard on it. I had a 150 with a hydrofoil and this new 225 did not. With the new engine, the bow would rise REALLY high getting on a plane and off plane. SLowing down would swamp the heck out of the transom. Going over waves and chop, the bow flops...
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    Need a couple torque specs, please help.

    Working the bugs out of this new to me 2001 Yamaha 225 OX66 sx225txrz. Somehow the stator worked itself loose and started rubbing on the flywheel. :mad: I shut it down right away and got towed home by some random jet-skiier:redface: Anyone know the torque specs of the flywheel bolt and the...
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    Which hydrofoil to get?

    I have a 20' deep V center console with a 225 OX66 Yamaha on the back. Top speed is around 60mph. My other motor that I had on this boat had doel fins on it. This Yamaha does not. I notice a huge difference from not having them. Lowest planing speed is higher now, Planing time is longer, I...
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    2001 Yamaha 225 OX66 idles higher on the hose than in the water..Normal?

    2001 Yamaha 225 (SX225TXRZ). Long story short, it idles at about 650 in neutral in the water, and idles at about 900-1000 out of the water on the hose. Is this normal? If not what could cause it?
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    plugs look muddy!

    94 yamaha 250 txrs that I am going through. Seems to run ok, other than loud powerhead. I pull the plugs and the left bank looks normal, however the right bank, especially #3 look like they have mud on them. Coated in thick brown substance. I cleaned them, ran the motor and again, coated in...
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    Motor does not spin freely with no plugs in!

    I am still working my way through this 94 yamaha 250 carbd txrs that I got. THe powerhead seems excessively noisy to me. With the plugs out, i tried to spin the flywheel by hand. It spins freely for about 1/6th of a turn then there is a very tight spot where I have to back the flywheel up and...
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    How to clean out precision blend oil pump?

    Just got this 94 250 carb engine. Being a yamaha Noob, when I first started going over the motor, I pulled the float switch/oil strainer out of the onboard oil tank to check it out. Little did I know that I just allowed any sediment to get into the pump and need to replace the seal....yay...
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    Keep OEM oil injection system or remove and pre-mix??

    94 Carbed 250. I am currently using the OEM oil injection system. 1) How reliable are these systems? 2) Keep it or remove it and premix? 3) Why? What are your thoughts?
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    Engine DOESNT smoke much..

    94 Yamaha 250 Carb. Just getting this engine together. I am using the OEM oil injection system, not pre-mix. Today I noticed that there is almost no smoke from the exhaust after the engine has warmed up at idle. IS THIS NORMAL? It smokes noticeably at higher rpms and lightly at cold...
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    Carb question......I'm stumped...

    Got a 94 Yamaha 250 carb. Here is the situation. I have to manually choke it via placing hand over carb intakes because the enrichening pump is dead. While doing this, I noticed that all of the carbs suck the palms of my hands in strongly except for #3 carb which has 1/3rd the suction...
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    94 Yamaha 250 carb is LOUD!

    I just got this motor and have been rounding up all the parts. FInally got it running on the hose today. With the cowl off, the engine is louder than the exhaust! Is this normal for this engine? This is my 1st yamaha and 1st 250. I am used to the sound of early 90s OMC 150s whos exhaust...
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    Which to buy? 96 OMC 225 or 94 Yamaha 250?

    I am having trouble deciding on which engine to buy. Both are in good shape and both are for good prices. 1) 94 Yamaha 250 2) 96 Evinrude 225 Ocean Runner Which engine should I get and why? Thanks for your opinions!
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    Which to buy? 94 Yammie 250 or 96 OMC 225?

    I am having trouble deciding on which engine to buy. Both are in good shape and both are for good prices. 1) 94 Yamaha 250 2) 96 Evinrude 225 Ocean Runner Which engine should I get and why? Thanks for your opinions!
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