D2 starter pinion question

You might need to tun the screws on the latches in.
Try loosening off the clutch engagement one notch. I had the same problem with both of my d2's and that seemed to do it. Easy to do

If turning the screws in a half or full turn does not noticeably improve things, then inspect your latches. The "catching" edge may be worn and you'll need to either dress them or replace them

when you push the compression release in is the throttle fully closed?

Sounds more like the mounting bolts have dropped out of the pinion engagement sleeve. Holding the pinion engaged will take its toll on the engagement lever.

Thanks for the replies. dpendzic: yes the throttle is fully closed.OM: I had the pinion out of the tractor when I split it for main clutch replacement. there was some wear and the screws were out as you mentioned.I bought new ones with new locking tabs. I will try the adjustment and keep you posted. thanks again,Bryan

Usually the screw threads get buggered up in the process. If so, new screws and tabs won't hold.

well the adjustments were no help.will have to take it back apart and replace the latches at least.Bryan

well, I took it back apart, sort of surprised that there is minimal wear on the latches.the stop has a slight radious.I have new latches from Florin tractor and will try to get a new stop. My manuals don't mention how to set up the latch tension after replacement,other than counting the threads on the originals ,and that they are factory set at a certain rpm.(Iam guessing on a bench test of some kind) So match the originals and trial and error? Thanks,Bryan

Are the latches centered on the ears of the stop? Not off towards the flats. Sometimes a shim washer needs to be added under the stop to get the correct orientation.
A starting point for the latch adjustment is when the screw heads a flush with the sleeve.