Throttle sticking open on MS362c

The throttle on my 362 wasn't shutting all the way after letting go of the trigger. I tracked the problem down to this return spring here. It doesn't appear broken and I was able to "fix" the issue by fidgeting with it a bit but I'm wondering if it needs to be replaced or maybe rewound a turn somehow.

Wondering if anyone can give me a part number or suggestions? Thanks.

 

Try a shot of thin lube on the spring and the shaft on each side where rides in the housing ? Is the spring hooked on that lower lobe of the carb body under the shaft ?

 

If you decide to replace it the parts breakdown shows the spring as part of the air valve housing assy. and not available by itself. 2 different part numbers for different carbs so you'll need to match them up to get the right one.

1140 120 0202 for carb with these designations wte-8a, wte-18, wte-20.

1140 120 0204 for carb c1q-s235a.

 

It looks like it's hooked onto the same places as yours. The spring itself seems a little "smooshed" and it had ridden up off of that lip on the carb body. All I really did was push the lever closed and tuck the rest of the spring back in place. I just ran about 1/2 a tank through and and it didn't happen again, but a couple times it took 1/2 a second to throttle down. I pulled the cover off afterwards and it looks like the spring had ridden up a little again.

Thanks for the info. Looks like I might be able to limp along for a little while, but I think the parts may need replacement.

 

Sounds like it might just be that spring if it is relaxing enough to ride up over the shaft housing and catch.

 

As you know I dont know nothing about chainsaws , but sometimes the shutter ( black line ) make a little scratch to the carburator body ( red line ) then the shutter stuck and the spring can not pull it back to the corect position ( sorry for my bad explaination )

 

Shawn, how much use in
The 362 before this happened?

 

Not much at all really. I've probably put less than 10 tanks on it since I've owned it, and I think it had around that many when i bought it. My warranty's been monkeyed with though, so I guess I'll be the one buying the parts..