Author Topic: ms250 questions  (Read 473 times)

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Offline countryhog

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ms250 questions
« on: January 20, 2014, 01:33:54 pm »
got one from the metal recycling yard. has fire and compression. needs a new sprocket and is missing the sprocket cover, bar, and chain.
1. should i switch it over to 3/8?
2. not sure if it was the self adjusting chain tension type or not. what should i look for? only has the front bar stud. the rear one appears like it may have been broken off or, if i'm reading the repair manual correctly, it could possibly be part of a self adjusting setup.  if it is self adjusting other than the sprocket cover what would it take to convert to a manual adjustor?
3. are the studs simply a screw-in type? i assume a left hand thread.

also, since i really haven't gotten to play with this thing yet i'm not ready to start buying parts yet but if i can get it to fire off and run i will be looking for the aforementioned parts.
just doing my up front work right now.
thanks for any help.
jerry
now is never here but the past is always present.
semper fi ya'll

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Offline 660magnum

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Re: ms250 questions
« Reply #1 on: January 20, 2014, 02:47:43 pm »
.325 is the best setup on these. I use the yellow label Stihl RS chain .063 gauge. I sometimes use the Stihl yellow label semi chisel chain too.

Your saw a "C" version and IIRC, they cannot be made into a regular one.

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Offline rayvil01

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Re: ms250 questions
« Reply #2 on: January 20, 2014, 06:57:03 pm »
The clutch-side half of the crank case is different for the "C" version.  There isn't room under the bar stud in that milled slot for the chain tensioner mechanism that the standard saw takes. 

I wasted a bunch of time trying it on a 270C.  If you look REALLY closely at the IPL you'll see it.   It's not obvious, though.  That's my excuse and I'm sticking with it.   ::)

Actually, the hand adjuster is not that bad.  I revolted at the thought of it.  But, it is actually pretty easy to use.  Trick is that it's easy to get lazy and not rotate the bar because the big gear has to be removed.  It's just a hand screw.  When I bought the saw the previous guy had never rotated the bar.  That  bar was hammered on the bottom. 

Offline Philbert

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Re: ms250 questions
« Reply #3 on: January 20, 2014, 10:07:10 pm »
The standard chain adjust will have the adjustment screw in the case. The tooless chain adjustment features are mostly mounted in the clutch cover and on the bar.

I have a bunch of NOS OEM clutch covers and .325 spur sprockets for those saws, along with some reconditioned chains.

Philbert

Offline 660magnum

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Re: ms250 questions
« Reply #4 on: January 20, 2014, 10:09:44 pm »
There's no reason the "C" setup would not last a experienced mechanical person a long time. They just don't work well for idiots.

I would never go out and buy a new one but if I got roped into one in a trade deal, there's no reason I wouldn't use it.
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline Fish

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Re: ms250 questions
« Reply #5 on: January 21, 2014, 08:52:32 am »
If you switch it over to 3/8, it will have to be 3/8 lo/pro.

Offline 660magnum

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Re: ms250 questions
« Reply #6 on: January 21, 2014, 11:43:11 am »
If you go with 3/8 low profile chain, the Stihl PS chain is the best
We should share what we know... someone may learn...
That knowledge can live after us... and that "Pays It Forward".
Be all that you can be . . .

Offline countryhog

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Re: ms250 questions
« Reply #7 on: January 21, 2014, 04:47:13 pm »
thanks guys. now all i gotta do is see if it'll run. and run well. we'll see
now is never here but the past is always present.
semper fi ya'll

Offline Fish

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Re: ms250 questions
« Reply #8 on: January 22, 2014, 10:29:46 am »
Have you tried the Oregon 91vxl  They made a longer cutter to mimic the Carlton's longer cutter?

Offline countryhog

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Re: ms250 questions
« Reply #9 on: January 22, 2014, 01:20:39 pm »
not yet. may try that once i determine if its worth the effort.
now is never here but the past is always present.
semper fi ya'll

 

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