200t not running right

[jose]

Hi all.

 

i got a 200t which is at most 1 1/2 yrs old. always run fine untill recently when it would run fine but not idle, ie it would cut out everytime i stopped reving it.

 

it didnt seem to matter if i upped the idle or adjusted the fuel settings.

 

then the other day it just cut out and would not start again.

 

I took out the spark plug and it was very sooted up. i cleaned it up and the saw started fine again but still wont idle.

 

i run all my other saws, blowers etc on the same fuel and nothing else has any problems bar i old 011 which i was recently given which seems to be suffering the same problems.

 

i put a brand new spark plug into the saw but this has made no difference.

 

i am not sure what is the best move to take next. does this sound like it the carburetta (excuse the spelling)?

 

many thanks for any advice.

[Hawthorn]

Try replacing the fuel pick up filter and clean/replace the air filter, these together with plugs are the normal problems.

Edited December 5, 2010 by Hawthorn
Typos!

[felixthelogchopper]

Piston pump

[MattyF]

clutch springs worn and broken would cause it to not idle and run not well

[jose]

i have repalced the clutch springs as these have worn out in the last 3-6 months.

 

i always clean the airfilters, will look at the other bits tomorrow given time.

 

thanks for the quick replies.

[Omniata]

As I said in another thread recently with a saw cutting out, take the carb out and check the fuel and impulse hoses...

 

See if there's a baffle for winter too, if the carbs icing up that won't help either...

[Dean Lofthouse]

Plug sooting up is a bit unusual ??

 

Try cleaning the filter inside the carb first, you need to check that to eliminate it. They normally need cleaning one a year, twice a year if you use steel jerry cans.

[jose]

do you mean the small square filter inside behind the main carbureatta filter?

 

and yes i do use a metal jerry can.

 

where would the winter baffle be exactly, tbh i have not heard of this before.

[Omniata]

Plug sooting up is a bit unusual ??

 

Try cleaning the filter inside the carb first, you need to check that to eliminate it. They normally need cleaning one a year, twice a year if you use steel jerry cans.

 

Is it definitely soot?! or is it light grey?!?!?!

 

If grey the saws running far too lean, brown is the ideal colour, ie: rich...

 

 

Edit: re: winter baffle: there should be a little plastic insert that can be switched from summer to winter in the cover over the air filter if there is one on the 200T?

 

It'll cause the air to be drawn around the cylinder to preheat it...

[Dean Lofthouse]

do you mean the small square filter inside behind the main carbureatta filter?

 

 

The little round filter inside the carb itself as shown here

 

http://arbtalk.co.uk/forum/maintenance-help/21274-demonstration-ms200t-carb-removal.html