I have new battery good cables, but my 706 gas will about 1/2 the time only start if I jump across solonid with screwdriver. Can a bad rubber starter button be the cause of this?
Can starter button be replaced from the outside of dash without removing cowl?

706 Gasser starting problems, Well First off on replacing the starter button with out pulling the dash . IF you arm and wrist will bend in four places and you hand is missing two fingers and vary small then it can be done , so no if you are normal ya have to pull the dash . First place i look is the clutch safety switch located under the floor or deck plate on the left side if it still has one and some one did not twist the wires together or put in a but splice that has worked loose or corrosion . That wire will be and orange wire that comes down from the starter button to the safety switch then on to the starter . The next place to look is under the dash cowl as there is a multiple wire connection that is also in the mix and some times they get corrosion at that point and all power stops there , you have to remove the T/A lever and hand rails to lift the cowl to gain access. again you looking for the ORANGE wire.

It can cause the issue It could also be the wire connecting it to voltage, and or the wire to the c=solenoid. I think the panel needs to be opened to gt to the switch. Disconnect the battery when working on it to avoid letting smoke out of some important device. Jim