la 100 does not cut right. I buy blades every year for my LA 100 John Deere. It just seems to leave a middle streak in the middle. I suspect the idlers are bad. Cannot be the blades or spindles or belt since those have been replaced.
You are either using blades that are too short or have a mounting problem with the deck.
The left blade is slightly further forward than the right so when you cut there is a small overlap.
If it only happens when you turn right that is normal
If it happens when you are driving strait then you have a problem.
Spindle problems will cause an uneven cut height in 99% of the time, rarely a mowhawk
Being certain the engine is running full throttle rpm, and the blades are not on upside down then try in 1st gear. If that looks better shift up to 2nd and try it.
