heres whats rong now what is the problem?

[NOS_350X]

i think i know what it is but i'm not sure

88 650 stand up jet ski (we got to of them) and it wont take off you have to put all trailprotrailpro weight up front to get it to plain but once its planing its got the normal top speed (maby a little slower) now what is rong??
the basic problem is no bottem end and regular top end but why??

[Howdy]

you probably have low cmpression thus your not getting enough low end tourqe. Check the compression and go from there.

check the intake grate and prop sounds like it might be cavatating

[NOS_350X]

1/2 of the reeds where missing
steel reeds cant be good since they had to of gone through the motor