what in the hell is wrong with this ms361 please help!!!!

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Festus

Festus

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. AS Supporting Member.
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Another vote for fuel line or impulse line. If it starts and runs, an ignition problem is possible, but not likely. Cracks in fuel lines is a very high probability, especially if it sat for a few months. Hard to tell by listening to a few seconds of running. It's probably getting enough fuel to idle just fine, but nothing above that.
 
TimberTramp420

TimberTramp420

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Mar 10, 2014
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the coil and flywheel magnet had a business card put in between them for the clearance during instillation, its starts right up after dying easy but will not throttle up in the video the second i touch throttle it dies, the carb was tuned by a stihl mechanic by a local certified dealer. When I went to go half choke the chain started to spin but on and off like something was restricting it and i didnt try that again because it seemed something could break possibly . Do I have to touch the LA, L & H screws to clean the carb i I've cleaned and retuned 4 carbs but the time i even touched this one ****ed it all up so i dont wanna have to touch any of those.
 
CTYank

CTYank

Peripatetic Sawyer
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Aug 26, 2010
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the coil and flywheel magnet had a business card put in between them for the clearance during instillation, its starts right up after dying easy but will not throttle up in the video the second i touch throttle it dies, the carb was tuned by a stihl mechanic by a local certified dealer. When I went to go half choke the chain started to spin but on and off like something was restricting it and i didnt try that again because it seemed something could break possibly . Do I have to touch the LA, L & H screws to clean the carb i I've cleaned and retuned 4 carbs but the time i even touched this one ****ed it all up so i dont wanna have to touch any of those.

Yer gonna have to remove the mixture screws, to clean out the innards, with low pressure only of course. Mostlikely your current positions of the needles will be meaningless, but it's easy to measure how many turns each screw is out (CCW) from lightly seated. And just as easy to return them to the same positions.

Do you know how to rebuild a carb? Not rocket science, but it helps to be borderline anal. Cleanliness is critical.

While you're getting at the fuel system, dump the fuel tank into a clean white plastic bucket. That'll let you see how much poo was in the tank with the fuel- std issue w/Stihls collecting crap around the flippies. Little break in the fuel line in the tank, and guess where that goes. (the carb) Just one reason why it's a good idea to dump the tank regularly.
 
TimberTramp420

TimberTramp420

ArboristSite Member
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Mar 10, 2014
Messages
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how do I check the impulse line ? or any other leaks any good tips? and wheres the tank vent? sorry guys ive been real busy and tired and this is killing my wallet so typings all bad
 
TimberTramp420

TimberTramp420

ArboristSite Member
Joined
Mar 10, 2014
Messages
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didnt run for 3 months before video tank was drained but dont mean nothing sat in a corner too long it must be that carb and tank the coils brand new, any tips on the vents and impulse line
 
bikemike

bikemike

loud pipes save lives
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Dec 16, 2012
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3,945
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didnt run for 3 months before video tank was drained but dont mean nothing sat in a corner too long it must be that carb and tank the coils brand new, any tips on the vents and impulse line
The tank vent should exit the top of the tank if it like the 034 it should be on the recoil side of tank the best way to test thw tank vent i lay ur saw on the side and loosen ur fuel cap and see if it runs better if there is no change then that rules out fuel tank vent
 

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