Billconwell
Forum Newbie
- Joined
- Aug 13, 2017
- Threads
- 1
- Messages
- 2
...have a Scag Saber tooth Tiger STT - 31BSG w/ Briggs Daihatsu Vanguard 31hp model DM950G engine w/ 997 hrs. Just recently replaced idler pulley on the 72" cutter deck along with the idler tension spring. Engine starts and runs just fine, once you engage the PTO everything seems fine, after mowing approx 10 minutes the engine starts to sputter, when I quickly disengage the PTO the engine recovers and runs fine again. I checked the cutting deck and all the spindles and pulleys seem to be rotating as advertised. Pulled the plugs they all look identical, fuel pump seems to be putting out normally. I did notice the blade cutting belt seemed unusually hard to reinstall when I replaced the deck idler pulley. The spring looked like the original, which broke during my last cutting (that's when I discovered the bearings in the deck idler pulley were bad). Is it possible I have too much tension on the decks blade belt? ...Any ideas would be appreciated!