chuckwood
Addicted to ArboristSite
- Joined
- Jan 26, 2008
- Messages
- 8,681
- Reaction score
- 15,518
- Location
- near the Great Smoky Mtns. Tennessee
Got a 65 and cannot get the hi speed to set. It idles not bad, but when rev it up, bogs after about 5 seconds. Nothing I do to set corrects the problem. Seems like it you pull the trigger repeatedly, it will catch and go for awhile, then bog again. Also, should the vent tube next to the carb, show signs of fuel when running? I rebuilt the carb with kit and clean it good.
I'll probably tear down again to check ignition. The switch is suspect too, as when running the switch doesn't work all the time. I replaced the ignition with solid state module including spark plug in 2014, but will check operation of module to rule out ignition. Also, will re-check carb, in case the screen is partially blocked. At least that way, I can rule these problems out. The fuel line was replaced and new filter installed, when I did the carb rebuild. Don't like the engines with the inside coils!
The fact that it will idle no bad, has me stumped.
Carb looks fine, after reviewing all components again. No reeds on the saw. The spark looks weak after testing. May replace module and the kill toggle switch. Seems erratic upon testing continuity.
Anyone know how to set stator plate timing? Originally when the module replaced the point/condensor, the stator was not removed. With the module don't know if the stator needs queeking.
I've been through a lot of carb problems with all my small engines , and things improved a *lot* when I switched over to using 100% gas only. Sometimes rebuild kits won't solve carb problems if a passage is blocked by something that won't dissolve in carb cleaning fluid. I now use an inexpensive Harbor Freight ultrasonic cleaner for all small engine carb rebuilds. The ultrasonic usually shakes loose any solid crud that could be clogging up those tiny carb passages. And sometimes not even the ultrasonic can fix things, and then it's time to try another carb. I'm a big fan of the 65's and 77's. They are heavy, but very tough, they can take a lot of abuse that the new plastic saws can't handle. My only complaint with them is the design of the air cleaner. There's not enough area on the base that they sit on, and dust gets sucked inside them. I fixed that, I hope, by making some gaskets to fit in between the air filter and the carburetor. I've seen those solid state ignition modules on ebay, I might try one sometime. If you run a 65 a lot, it's a good idea to purchase some parts saws on ebay to keep your good one going strong.