I may take it apart and see if the impulse line is still attached or not at the cylinder. ...really seems like something major isn't right but i've overlooked it.
Stihl ms200t bolt for bolt rebuild video
- Thread starter Mattyo
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Paragon Builder
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It may be worth switching a known good carb over. It could rule things out. Plus ease your mind[emoji2]
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Not sure what I could have overlooked though. Even if the new carb works perfectly, what am I missing on this one? yes, peace of mind would be nice right now, admittedly.
M
MattG
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Hi Mattyo
I did my chainsaw mechanics training with a ms200t. This is my mad story
http://www.arboristsite.com/community/threads/ms200t-clutch-side-crank-seal-question.281065/
But anyway, I found after I'd changed the seals (tested ok, etc.) changed the piston and serviced the carb it came with real good, it still had a few niggly little faults. I did the famous accelerator pump block off trick - this helped - but it still had a weird cold start issue.
After reading that carbs on these babies eventually die in weird ways, I bought a new carb. Firstly I skimped out with a horrid chinese one. Not much better. Eventually I coughed up for a new stihl (pre-accelerator model - I've got the PN somewhere) carb. The saw now runs awesome and I love using it. The long and short of it is, I think, that this saws get so much use with throttle blipping that eventually shafts and bores wear out in the carbies in a hard to fix ways. And that wear can cause little leaks which can alter the mixture strength at various points in operation.
Sorry for the big essay, I do get like that, but in my very limited experience I found a new carb really perks these awesome saws up.
juttree
ArboristSite Guru
Sometimes blocking the accelerator pump still doesn't fix these carbs. Probably 9 out of 10 times it works but once in a blue you get a bad one.
strange thing is I think it WAS working. ... the decked and ported saw was working, now it bogs so bad it stalls.
did you check the vids Justin?
did you check the vids Justin?
This the saw with cyl work?
juttree
ArboristSite Guru
I just watched again and they seem to run good at wide open. Have you tried turning the idle screw down. I've had a broken spring on a few 200's and they still don't spin the chain that fast at idle.
juttree
ArboristSite Guru
Be patient on any replys, I messed with my phone and now I'm not getting notifications, need to keep checking.
the clutch on the 200 that stalled is cooked... it was run w/ a busted needle bearing...the whole thing is black. I'm going to replace the springs and see if that helps.
yes, the one w/ the port work has the bog... but it wasn't boggy when I first put it back together.
yes, the one w/ the port work has the bog... but it wasn't boggy when I first put it back together.
So switch the carb with the good runner and tell me what happens. And i think I saw the coke can saw chain moving at idle if my old eyes are right put on new clutch springs.
Parts are enroute
you ordered a china carb?
Yup
If it dont work...I'll swap with another saw.
I'm also bidding on some parts lots on ebay
....don't outbid me lol
If it dont work...I'll swap with another saw.
I'm also bidding on some parts lots on ebay
....don't outbid me lol
It will swap they all do.
I aint like that . Good luck.
ok, got a carb from HL supply, this one actually richens up. so if I richen the low screw a bit, the bog goes away. the other carb wouldn't richen the low screw... hmm
Paragon Builder
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So it's good to go?
Do these am carbs have an accelerator pump?
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I think it's going to be ok, i've got the low screw out a bit more... maybe 1.5 turns to get the fuel I need to avoid the box.... the idle screw is full in. keep in mind, I tested this for about 10 seconds total in my basement at 9pm.
no accel pump as far as I can see. for sure though, this carb can flow more fuel than the other one... must have been clogged somewhere that I couldn't see or find. on this one, if I turn the low screw out too much, I can kill the saw w/ richness. on the stock one, I couldn't do that.
no accel pump as far as I can see. for sure though, this carb can flow more fuel than the other one... must have been clogged somewhere that I couldn't see or find. on this one, if I turn the low screw out too much, I can kill the saw w/ richness. on the stock one, I couldn't do that.
juttree
ArboristSite Guru
Are you sure you have the shutter lined up right? All the way in on the idle screw sounds like it might not be.
