Hi pau13z,
This problem I have only ever experienced wit PT's on the 24's and every 24 I have had has had it from the get go when I picked them up. Hundreds of PT's on standard bases and never a problem. The other thing is they don't start anywhere like a standard mower that should start first pull every time. These kick and buck and just because you had it running 2 seconds ago does not mean it will start again and it will go through its performance of kicking back, but then it might just start straight up or just decide to try breaking your fingers. If you are talking about a piece of wire to hold the valve open that is just going to burn the valve out fairly quickly I would think but it seems like somebody had a similar problem
Hmmmmm that does sound really odd. Knowing that the mower needs the blades to be balanced correctly as referenced previously, could that be the reason? It's the only one with a pulley from the crank to the blade disc, isn't it? Maybe flex in the belt is causing that issue to be exacerbated? Essentially throwing off the balance?
Do you experience the same issue on firm ground, level ground, or gradients? Does the same issue occur if you pull the starter very slowly vs quickly?
I'm thinking... if it's not flat level ground and a firm surface, if there's anything that could be touching or interfering with the entirely free rotation of the disc or blades, that could play a part with that balance issue. Similarly, pulling the starter hard and fast, flexing the belt more and again causing the balance to be off further, that might do it? Just throwing out ideas, if I think of any more I'll flick them through.
