Nothing wrong with using a tach if that’s what you have to hand. It’s actually a good way to get you close and safe. The issue arises when you:
How is this done?
It was truly trial and error, like hiring Borat to port a saw.Must be some good anti vibe on your saws!
Either external woven metal wrapping that is grounded to the body or moulded into the rubber insulation of the ht lead.How is this done?
In reference to the revvy Poulan. Yes, I've been vague. IIRC that experiment was done around 2011 when my main tools were a P38 can opener and whatever was inside the can I'd just opened.
Since then I've acquired most of a machine shop, and associated skills. Old work, when I find it hiding around here, gets binned.
Must be some good anti vibe on your saws!
You know... telephones exist.
I don't understand the mentality here. Gonna leave it at that.
It was a joke.Tachometer, rev counter
How do you figure setting with a tach doesn't account for elevation, temp, etc?
I don't doubt that. Most of there saws run like crap too.
What is this?
Yeah! Sometimes I hear a tree service down the street and wonder how their saws last a week.
You have to consider what "4 stroking" actually is. It's the air to fuel ratio so rich the saw is miss firing. It is no stretch to figure out aetting the carb such that its miss firing and then stops misfiring in the cut results in an overly rich saw.What is this?
I've revved a free saw, but never free revved a saw.
Yeah! Sometimes I hear a tree service down the street and wonder how their saws last a week.
3 blocks away. I can tell one guy is lean, another rich, someone elses' saw idles endlessly while he hides anywhere.
You know what it does? It gives me confidence. That extra pinch of leanless... it'll hold!
You always hear about "When it cleans up in the cut" but WHAT cut?
Tuning a freshly ported chy660, I decided that "the cut" meant as soon as it touches wood.
Which wood? Well. When I started, it would go back to 4 stroking in 10" wood.
Then I leaned it out, until it would clean up in 6" wood.
Then I went for 3" wood. 4 stroke, and clean up in 3" wood.
Then I put the 28 on and buried it for a couple days.
Hey! Did I just make someone think harder about tuning by ear?
I tell you, WHICH cut it cleans up in is EXACTLY what Mr. Snelling means by "4-stroking method is usually rich."
If installed properly they shouldn't. The piston speeds on these short stroke saw motors aren't that fast.
Like I said I've never used or even own a tach so IDK.
Not so much that. But, most of the aftermarket clips have a metal tab on one or both sides and the metal fatigue will break them off. Regularly. Old 041's and that vintage came with them. But, the RPM's were quite a bit slower. Stihl took the tabs off, probably for that reason.
Yes we know you "techs" send saws and most o p e out bludging fat to cover ya ass. Nobody is saying you are in the wrong so chill willy don't take it as a personal attack we all know you are dealing with braindead clueless consumers... Anyone with half a brain isn't taking their chainsaw to a tech for a "service and tune up"
Excuse my snipping. This sort of video shows what the average person is capable of.I did some work... as a small engine mechanic. I quit in short order because it was such braindead mind numbing
Some old-timers also labor under old misconceptions. My brother, who's pushing 70, will change his car's spark plugs and wires probably 20 times more often than he will change the oil and filter. I try to tell him, "D00d, you don't need to change plugs and wires every six months, but it might help if you changed the oil more than once every 100,000 miles."
