family riding on the trial

hi everyone. recently iam get a good vibration that comes and goes while iam riding my praire 4x4. iam afraid something is going to detonate. vibration is felt in the steering and then you will here a noise and this comes and goes. its very noticeable when iam on a blacktop surface. iam worried. i cant get any slop in the drive joints i can grab onto. so any input would be appreciated. i have a manual downloaded and i,ve went through it pretty good. my thought is its from the output shaft to the front drive. let me know if anyone has experianced this.

It appears that the Service Manual thread at top of forum is dead as all the links no longer work.  I'm actually looking for service manual for a 2000 KVF300 Prairie that I just picked up.  Does anybody have link to one that they can share, or know where I can find one?  Thanks in advance for any help.

View File 1999-2002 Kawasaki KVF300 Prairie Service Manual
1999-2002 Kawasaki KVF300 Prairie Service & Repair Manual
Submitter Spartacus Stroppel Submitted 08/25/2019 Category Kawasaki ATV  

1999-2002 Kawasaki KVF300 Prairie Service & Repair Manual

Just bought Kawasaki Prairie 650 vtwin 2002 and replaced old carb with new, but the bolts to hold down the air housing are missing. Anyone have any idea what size they are? I apologize for not being very mechanically inclined. Any help would be much appreciated.