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spudulike

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Servicing one of my old 200T to give to Dad to replace one of his nicked ones.

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I think that the carb filter was overdue for a clean.

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Oh dear - you sure you are up to it Ed:lol:

 

Bad news about your dad, hope he gets up and running soon!

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As soon as I replace filter and cover she dies and won't restart.

 

What is this telling me about the mixture adjustment needed? if anything?

My logic is saying filter and cover reduces air intake therefore need to lean h and L?

 

 

I have only ever tached one saw up without an airfilter being present and that was a slight mistake - five MS200Ts and only two air filters!

 

It revved briefly up to 15k so 1k above what I had set it to earlier!

 

Deductions - leaving the air filter off will increase the airflow and make the saw run lean.

 

I reckon the saw is a slow revving beast and that you should just aim for around 12,000rpm, chances are that the carb should be set to one turn on each screw but check for four stroking at the top end to be sure.

 

Is it possible to drill holes so adjustment is possible - seems pretty strange not to have any form of access to mixture adjustment???

 

I guess if you must, tune the saw without the filter so it fourstrokes normally and then turn it slightly lean for when the filter and cover are replaced - as long as it revvs out and fourstrokes with the cover on, all should be good!

Update from the department of the bleeding obvious

air filter and cover was nudging the kill wire which had broken insulation under the handle therefore shorting.

 

I'll get me coat..

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I had a very strange problem today. A customer had just inherited a still 028AV, old, but hardly used. Starts and runs like a dream and has a brand new bar and chain.

 

Halfway through the first 12" log the chain seizes up. Dismantle and clean, off it goes. Again it jams up halfway through the log, so he brings it to me.

 

The chain cover was packed with very long wood shavings, the shavings just could not escape because they were so long and tried to carry round, getting jammed at he top.

 

I took off the brand new .325 stihl chain and put on a brand new Oregon chain, tried it again and its perfect.

 

Put the Stihl chain back on, the problem came back.

 

I then sharpened the Stihl chain, and its OK.

 

Seems the new Stihl chain was just to sharp when new and taking too large a shaving, but disturbingly, a little less sharp when sharpened.

 

I guess this may be quite common, but its the first time I have ever seen it.

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