Pull start not turning engine. not engaging - Troy-Bilt 25cc 4-Cycle Straight-Shaft Gas String Trimmer TBP6040 XP

The mechanism is beginning to wear out. When you pull on the rope, the turning action pushes pins out from the center of the rope pulley that engage to turn the engine. These pins wear out and will eventually fail, not engaging at all. These pins may or may not be available for purchase at the small engine parts store near you, but the entire pulley assembly with new pins usually is.

You probably need to replace the starter recoil. This is not a very expensive fix. Just be aware that this problem is usually caused by having to pull the starter rope excessively because of some other starting problem. Once you replace the recoil, keep your engine running properly.

Try pulling the rope slowly until the starter engages the flywheel (you should feel when it engages) then give a good pull to start the engine. Don't give the rope a quick hard pull in one motion. You will probably need to do this three or four times before the engine starts. Of course push the primer button the number of times called for in your engine instructions before trying to start the engine. If you still don't think the starter is engaging the flywheel if would take it back where you bought it if it's new.

use the free sign and encourage people to take it

Starter engages while riding Harley Davidson Forums Harley Davidson...

the solinoid for the starter is sticking. and not kicking it out, to start it. good-day !!

Sounds like the starter dogs are broken. They are little plastic teeth that engage to turn the engine when you pull the cord. You'll need to replace the whole starter assembly to fix this.

rope is disconnected to the flywheel

pull spark plugs and see if it will pull over if not fuel may have filled the crank case drain & refill to proper level (starter is stuck in lube shaft & movethe gear up & down by hand to free up)

Is the gear selector set to 'reverse'?