When you say 'Battery Good', what exactly do you mean?? :dontknow: 'Good' is a pretty subjective term, can you actually put some voltage figures to that??
We are operating remote here, and our diagnosis/help can only be as good as the info you feed us! Actual voltage figures can help point us in the right direction, and do bear in mind that these Spyders are
MUCH MORE power hungry than most other 12volt vehicles - a battery that might be deemed '
Good' on your daily driver sedan could well be too tired to
operate let alone
start a Spyder, and from the limited definitive info you'v e been giving us, this
STILL sounds very much like a dead &/or dying battery - and even brand new batteries can be too tired to start a Spyder!! :lecturef_smilie:
I've found on quite a few Spyders now where the voltage during testing before, while starting/cranking, and while running dropped marginally below 12 volts, but remained high enough to be deemed 'good' for the average car, only these Spyder operators were experiencing pretty much
EXACTLY the same problems you've described - sometimes the owner's local mechanic/auto electrician has re-tested and insisted that the battery load test showed it was 'good'!! However, once tested to reveal the
ACTUAL voltages experienced under cranking and starting loads, when the Spyder battery is trying to start up a bunch of computers, electronic systems, lights, gear selection solenoids etc, etc, etc,
AND turn the starter motor over all at the same time, such that the battery voltage dropped to just a little below 12 volts, the start is quite likely to fail!! Not on just one Spyder either, but on
MANY Spyders now, and somewhat surprisingly, on waaaayyy too many
NEW Spyders &/or Spyders with
NEW batteries!! :banghead:
So can you put some actual figures/voltage readings to that 'battery good' diagnosis?? :dontknow: AFAICS, doing that can only help us to help you!

It certainly could be an issue actually
IN the gearbox &/or the clutch itself, but until we
truly know that it's not the battery, pretty much anything else we can offer is just a SWAG!

pps: