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have another prop to try first, but do you forsee any balance issues? Was thinking this is a modification easily reversible if i had issues with stalling etc but can’t imagine it being light enough...

Common problem for the adapter plate to break, mine broke twice in 220hrs. Went with the 300xs conversion and has no play at all now, buy the lower crank seals and replace while you are there as the...

have you tried it? Everything I have ever read suggest it can help with holeshot.

mercury 250 pro xs 1B787899

I’ve got a 2010 mercury 250 pro xs, motor is healthy but still lacks some torque on the initial hit out of the hole when pulling heavy skiers. Has anyone removed the...

Update: found broken trim wire was crushed on the ram, looked like it was shorting out. Hopefully that’s my reason for seeing such erratic voltage drop on the gauge. Checked battery today and it’s...

Thanks everyone for your help, I think I have a combination of a few factors at play after taking it out today.

Boat is a 19ft ski race boat from Australia, 750lb bare hull
so not overly heavy....

Mercury 250 Pro Xs 1B787899 trying to diagnose a lazy holeshot pulling skiers. Seams pretty slow out of the hole than pulls like a train once it hits 2500-3000rpm. Have drilled some vent holes in the...

old thread but ran a 23 trophy plus and 23 solas hr4 on the weekend, thought I’d share my finding. Nothing scientific but here goes. Trophy better holeshot had the medium pvs plugs in, but wanted to...

Thanks for your help, the one for sale is the original 25o pro xs plate, trying to go down the integrated mounts route from a 250XS or 300XS to make it stronger.

sorry to bug you again. No 250XS or 300XS exhaust plates available at the moment through mercury. I have found a plate from a 300X though, can this be used in its place with the fittings drilled into...

Thanks Joe, will track one down.

Mercury 250 pro xs 1B787899

Unfortunately I have what I believe is a broken adapter plate after doing some research on here from striking a submerged object in the water. I plan on using the boat...

If only it was as easy as buying a new motor. In Australia low hour 225-250 pro xs motors are hard to come by hence why I’m looking at seeing what options I have with these and I enjoy playing with...

thanks savage will start playing with props and engine height. Will look at some ccms reeds and stuffers, make sure it’s getting full throttle on the hot foot. And might look at flywheel, poppet...

Thank you for taking the time to reply. I started to think this might be the case after doing some research on BBC. Looks like I might have to get some reeds, solid mounts and just focus on the set...

Hi,

chasing some information on a motor I just recently purchased, this is my first Optimax. 2011 200hp pro xs seriel: 1B846840.

finding it hard to track down any information about what...