Got a problem with my starter, it will throw out but seems to slip inside the pinion? the engine rotates about 3 times or so. then all you can hear the starter whine but thats it. I've done a top end rebuilt. if I try x number of times then it will eventually start then there are no problems. also if i take out the sparkplug it will crank all day with out a problem.
just FYI I checked or replaced the following
battery,
"new starter" less than 3 hours on the starter or rebuilt engine
cables
solenoid
any ideas?