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  1. C

    1998 200hp EFI Mercury Trigger Assembly

    Good Morning all, looking to see if anyone out there would have any idea as to if there is a spring mechanism in the trigger assembly on my engine. When I remove the throttle cable from the motor, the spark advance lever will not return to it's vertical position, it seems I've lost a spring...
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    Swap motors, How tough could it be??

    Looking to change motors between two boats. The two motors I'm working with are a 1998 Mercury 200 EFI and a 2005 Mercury 225 EFI. The 200 hp unit is a 2.5 liter and the 225 hp is a 3.0 liter. I'm wondering how dificult it is to do, the main concern is with the wiring harnesses and whether...
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    What's the best way to check reeds? 1988 XR-4 150HP

    Howdy everyone, was hoping to get some advice on checking reed condition on a 1988 Mercury XR-4 150 hp. I've tried everything else that could contribute to the motor dying when getting out of the hole and this seems to be the last thing to look at. I've build the carbs, fuel pressure is...
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    2000 200hp with fuel pressure issues

    Thanks for taking a look at my post, looking for some help with this motor. The motor is the VX200TLRY that seems to be running with very low fuel pressure from the pulse pumps causing it to die after idling for a while. I put a guage on them last weekend and found that they are only putting...
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    Colortune??? 1988 150 hp

    Anyone ever heard of a carburetor tuning tool called Colortune?? I’ve been really struggling on getting my 1988 Mercury 150hp XR4 to run the way it’s designed, while I’m still waiting for the carb kits to get delivered, I was talking to a friend who has a device called a Colortune. Supposedly...
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    1988 150hp XR4 - In need of advice

    Still struggling with getting the engine to run right, as I accelerate out of the hole, the motor will begin to rev up but then dies. If I choke it, basically over fueling it, the motor will pick up and take off. My first move for this condition was to rejetted the motor for my elevation...
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