Just so you know you don't need to pull the handle apart to take the carb off just hold the throttle open and drop the leaver out you will see a cut out in the lever
@@TheGreasyShopRag I Work at a Stihl Dealer I See and Inherited a Lot of Really Cool Vintage Saws and TS-350’s 400’s and a New TS-420 That Was Ran on Strait Gas Had 10 Min Run Time I Rebuilt The Top End And It’s Still a Brand New Saw 😀😊 I Also Have an Old Top Handle O8S and Top Handle S10 all Runners 😀
I got one in 1992 it has run like a champ 2 air cleaners a oiler worm and line . fuel and oil caps 1 spark plug screen for the exhaust . in 2017 I got a New MS270 my 026 cut 20 cord a season for 8 years and 5 cord for 17 more seasons , the 026 in my trimming saw . the ms270 is the cutting saw . the 026 never had a carb kit 31 years old .
Hey Scotty, excellent video! I love running and repairing chainsaws as well. Especially older vintage saws although I do have a some more modern saws too. I'll be checking out a bunch more of your content and I just subbed your channel!! Keep up the good work young fella!
@@TheGreasyShopRag cant it be caused by fuel tank breather? because the cap get impossible to remove but when i get it off it doesnt change anything in rpms.
@@lauris4887 Yes, the breather is a possibility. So is the fuel filter not hanging in the fuel, a hole in the fuel line, a bubble of water in the carb, a loose ground wire that shorts when the saw is rotated, and of course gremlins. Its hard to give an answer for problems I didn't experience. I'm not bustin your balls, I'm just saying that you stated the rpms changed and it died. Did they go up or just go down till it died? Was it a fast or slow transition? I don't expect an answer to these questions, I'm just pointing out that there are a lot of variables and you need to check everything until you find whats wrong. If you suspect the tank vent then you need a vacuum pump to test the tank, or remove the vent and see if the problem persists.
Yes a pro saw is worth repairing but we only use original equipment parts so this saw could cost $300 + labor and then you still need to find out why it scored in the first place.
That's the point of pro saw, labor cost for repair is many times lower than with consumer saws. That cylinder can be changed less than 1 hour. If that saw is at home use then i don't see any point to use OEM cylinder. I would put some cheap cylinder and piston. Usually it's piston fault when cylinder is scored. They wear out before cylinder and starts rocking resulting scored cylinder. Pistons wear inspection should be done with thoes pro saws, it not big job to change piston on thoes. Cylinder can live over about 2 pistons, sometimes even more.
@@loodusefilm7881 I'm not saying your methods are wrong but we won't use cheap aftermarket cylinders for any application so repair costs are gonna be more than half the replacement value for a scored cylinder. If I was servicing saws for loggers then I would see more worn pistons but my customer base has a lot of homeowners. They don't wear out pistons. When I see problems its because of an air leak, old fuel that makes the rings stick, or over revving/heating due to dull chain.
@@TheGreasyShopRag I also get your point of it. All it comes to same place, homeowners shouldn't buy pro saws they just waste money with it. Pro saws are for heavy use then they pay off it's high price.
I assume you're talking about the tank vent. Those that say the vent is a good place to start have overlooked some key facts. In the video you can see me remove the tank cap. Any vaccuum in the tank has now equalized. Later when I tip the saw you can see it has half a tank of fuel. Theres no way that little carb (or any chainsaw carb) has pulled enough fuel in those few seconds of run time to create a vaccuum in half a tank of fuel. No, I never considered the vent to be an issue. Now if the run time was 30 seconds to a minute or more then came a bog, I would agree. Thanks for watching and commenting!
A lot of equipment has limiter caps on those screws so joe public can't fiddle too far out of range. They do need to be adjustable to compensate for temperature or elevation changes. The problem is most homeowners don't know how to make those adjustments. The newer pro saws from Husky and Stihl use a computer chip to make those adjustments and don't provide any screws to play with, not even idle speed.