weak

Hi I'd appreciate any help with my Seadoo bombardier 2002 GTI LE. The motor turns but does not start. It looks like fuel is getting to the spark plugs, but the spark looks weak and fires very rapidly and appears randomly. What should I check for? Thanks

Im getting alot more smoke than ever before both in water and on trailer. She idels good but when i get on it the engine gets loud but theres no take off power. Its like theres no tourque if you can call it that. It will get up to speed but takes me babying the throttle. The engine also seems...