Author Topic: ms170 ws manual  (Read 394 times)

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Offline leec

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ms170 ws manual
« on: October 28, 2013, 09:22:23 pm »
Hi Guys,

I could really use the above ws manual as the 017 ws manual that I have just isn't quite there.  Few differences, specially the snorkel carburetor. This carb seems to have both H&L fixed and only an extra air adjustment (which has a left hand thread??!) So is this a type of "Stratos" carb?

Many thanks in advance

Lee

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Offline 660magnum

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Offline 660magnum

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Re: ms170 ws manual
« Reply #2 on: October 28, 2013, 10:25:44 pm »
Look in your Gmail
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
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Offline Fish

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Re: ms170 ws manual
« Reply #3 on: October 29, 2013, 01:02:08 pm »
No, the snorkel goes to the air cleaner and is supposed to help when the saw is running a dirty/clogged air filter.

Offline leec

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Re: ms170 ws manual
« Reply #4 on: October 30, 2013, 06:28:37 pm »
No, the snorkel goes to the air cleaner and is supposed to help when the saw is running a dirty/clogged air filter.
Hey thanks Fish,
My snorkel carb gets its air from the same place as the normal venturi, ie both have to pass through the air filter.  I think there must be another reason for the snorkel.  I think it may be similar to the Poulan Stratos engines.  Anyway I don't like not being able to adjust the fuel mix. The only adjustment is to increase the air flow which only affects the idle, which oddly enough has a lefthand thread!

This unit has a scored  piston which I think was caused by the mix being too lean, as per the EPA requirements.  I'm thinking of putting on the adjustable carb that was fitted to the earlier model of the ms170.

Regards,

Lee

Offline Fish

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Re: ms170 ws manual
« Reply #5 on: October 31, 2013, 03:35:48 pm »
No, nothing at all like the stratified carb.  The air coming from the filter box is pretty much the point.  Here is a tech bulletin
from the 029 snorkel carb/same setup.


Offline Adirondackstihl

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Re: ms170 ws manual
« Reply #6 on: October 31, 2013, 10:02:12 pm »
Like Fish stated....far cry from a strato carb.
The snorkel like vent is what STIHL calls INTELLICARB.
And its function is once again.....just like Fish stated.


Offline Adirondackstihl

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Re: ms170 ws manual
« Reply #7 on: October 31, 2013, 10:04:15 pm »
I'm thinking of putting on the adjustable carb

Walbro WT 215

Offline leec

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Re: ms170 ws manual
« Reply #8 on: November 04, 2013, 10:43:51 am »
Thanks guys for putting me straight on that issue.  I think I would still like to replace the carb with a fully adjustable one.  Do you see any problems with that solution.  The earlier 170 had a normal carb i believe.

Lee

Offline 660magnum

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Re: ms170 ws manual
« Reply #9 on: November 04, 2013, 11:12:08 am »
I had a like new 025 with a single needle carb. Actually the mixture was "OK" but I didn't like the idea of a single needle carb.

The new carb was less than $25 from the Stihl dealer. Was a bolt in change over. Now I'm content.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
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