F150 (2005 Model) will not start but have power to starter relay

[zenoahphobic]

Dc is bad about arcing when opening up the contacts.
that is why the old points had condensers.

once a point surface gets a little oxidized and it causes resistance when made up, which causes heating as more current flows

Never seen condensers or capacitors used with starter relays. If dirty contacts are more prevalent, and they seem to be with some jetskiis, good idea to install one. Now what size the question?

[99yam40]

I was just referring to point and condensers as something most would understand as contacts that opened and closed a lot,and that the engineers used caps to help keep the points from burning up as quickly from arcing .
maybe most people now a days do not know that when the condenser went bad the contacts welded together/ burned up from the arcing .

On some small relays they also ran more than one set of contacts in series in DC circuits to get a larger air gap to break the DC arc

I am not saying any of this was done or should be done on start circuits.

Just that DC likes to keep an arc going more than AC

[rodbolt17]

and low starting voltage can weld them together and fry starter commutators.