Is it worth modifying my 1999 Yamaha 1200 xl ltd

[canon714]

So far I have replaced the cat with D plate and sensor and did a top end rebuild and convert it to premix.

Will I see noticeable improvements with modifications and what do you recommend?

[RaiderMagic]

worth modifying... well, thats up to you.
Does it make a difference, yes. Again, how much is expected is up to you.

A prop will help top speed & holeshot..
but you should really do a pump stuffer kit to help rid the bad cavitation...
since your in there, You should do the intake grate & ride plate.
These will all make a difference. In handling, speed, holeshot, etc. Definitely makes the ski more 'sporty'..but it's a big, heavy ski. it's not going to be a GPR killer, etc.

Adding rear Sponsons will make a huge difference in turning ability. So, if you like to hit the bueys or marsh trails, these will most definitely transform the handling to a better carving machine.

before you do any of that..I hope you added the WaveEater Clips to prevent the powervalves from dropping & ruining that new top end.

The XL/XLT is a great ski. Very versatile. As big as it is, it likes to jump. I have one with lots of bolt-on mods. I recommend them if you are interested in keeping your ski & are interested in more performance.

[canon714]

Thanks for your reply... I forgot to mention that I did the WaveEater Clips and the WaveEater linkage when I rebuilt the top end.

Thanks for the ideas.