miller755
ArboristSite Operative
So I picked up this Echo cs 8000 with some hedge trimmers I needed. And it wouldn't start.
It back fired thru the carb or popped, but wouldn't start and would often flood
So far.
Gets fuel, carb kit seems newer and has the tan diaphragm in it.
Coil resistance good.
Has spark on spark tester.
Flywheel key not sheared
Crank seals look ok, holds pressure test, vac test can pull a vac but leaks.crank seals on order.
Had about 150 psi compression it was put together without a gasket by a previous person. Had some scoring I'm guessing straight gas, since it was everywhere in the cylinder.
Cleaned up piston cyl and rings, rings also on order, put together with motoseal let dry overnight 120+ psi on 3 pulls still about 150+ topped out.
Still only backfires thru carb
Ideas
I feel like the coil would either work or not, but it's like it has a timing issue.
Oh and coil doesn't appear to have been replaced, so it shouldn't be a coil/flywheel mismatch.
Could leaking crank seals cause this? Idk, might order a carb kit too.
Trying not to throw a bunch of money at it.
It's just a bonus saw. And if it needs hundreds in parts it would be better as parts
Thanks in advance if you have any ideas.
It back fired thru the carb or popped, but wouldn't start and would often flood
So far.
Gets fuel, carb kit seems newer and has the tan diaphragm in it.
Coil resistance good.
Has spark on spark tester.
Flywheel key not sheared
Crank seals look ok, holds pressure test, vac test can pull a vac but leaks.crank seals on order.
Had about 150 psi compression it was put together without a gasket by a previous person. Had some scoring I'm guessing straight gas, since it was everywhere in the cylinder.
Cleaned up piston cyl and rings, rings also on order, put together with motoseal let dry overnight 120+ psi on 3 pulls still about 150+ topped out.
Still only backfires thru carb
Ideas
I feel like the coil would either work or not, but it's like it has a timing issue.
Oh and coil doesn't appear to have been replaced, so it shouldn't be a coil/flywheel mismatch.
Could leaking crank seals cause this? Idk, might order a carb kit too.
Trying not to throw a bunch of money at it.
It's just a bonus saw. And if it needs hundreds in parts it would be better as parts
Thanks in advance if you have any ideas.