1988 Yamaha 200hp repair

[zmann96]

I purchased a deck boat and 1988 Yamaha 200hp Salwater series motor. I should have researched before. The seller said it was NG. I thought I could get the parts and rebuild. I've been searching for a used power head or cylinder case but I can't seem to find any. the motor is 6G501 2 Can I buy a rebuilt newer power head to install on the lower unit?

 

[zmann96]

After searching I think it's a late 90s . The problem is the numbers are not visible on the tag.

 

[zmann96]

Finally got the model it's a 1995 TXRT 200HP . I've been looking for the crank case or short block but no luck.