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edgenet


If you enjoy doing it, It's not work

Location: Toronto
Joined: Nov 27, 2010
Points: 84

I have a Stihl TS460 cut-off saw and it is very difficult to start.
Original Message   Oct 13, 2011 5:17 pm
I have a Stihl TS460 cut-off saw and it is very difficult to start once it starts it works perfect. I did replace the spark NO Change, If I pour a bit of gas in the spark plug hole it will start in 4 or 5 pulls. Next I removed and cleaned the carburator and installed a new carb kit. No change. The compression is 90 with the decompression plug pushed in. Any thoughts. Thanks


If you are getting paid for what you are doing No matter how much you Enjoy it,   It's a Job
Replies: 1 - 7 of 7View as Outline
stresst


Location: The Village in the Middle of New York
Joined: Dec 11, 2010
Points: 213

Re: I have a Stihl TS460 cut-off saw and it is very difficult to start.
Reply #1   Oct 13, 2011 7:25 pm
edgenet wrote:
I have a Stihl TS460 cut-off saw and it is very difficult to start once it starts it works perfect. I did replace the spark NO Change, If I pour a bit of gas in the spark plug hole it will start in 4 or 5 pulls. Next I removed and cleaned the carburator and installed a new carb kit. No change. The compression is 90 with the decompression plug pushed in. Any thoughts. Thanks


I am not familiar with that exact carb but are you sure you did evereything correctly? Maybe there is a clogged jet somewhere? Did you change the airfilter? I remember we use to change the filters on those things biweekly!

TORO 826OXE
edgenet


If you enjoy doing it, It's not work

Location: Toronto
Joined: Nov 27, 2010
Points: 84

Re: I have a Stihl TS460 cut-off saw and it is very difficult to start.
Reply #2   Oct 13, 2011 7:47 pm
I tried starting without the air filter no change  

If you are getting paid for what you are doing No matter how much you Enjoy it,   It's a Job
niper99


Location: London Ont
Joined: Dec 2, 2007
Points: 354

Re: I have a Stihl TS460 cut-off saw and it is very difficult to start.
Reply #3   Oct 14, 2011 1:34 am
#1 did u adjust the carb??  #2  90 psi of compression is getting a little low for that saw...which leads me to believe the piston rings are worn, which in turn could make for hard starting because 2 cycle engines dont like blow by.. they need crankcase pressure to run the fuel pump properely....whats happens is the compressed air pushs past the rings while cranking in turn throws the crankcase pressure outta wack and pushs the fuel pump closed when it should be open...causing a lean conidition/hard starting espically when cold. 

symtoms of the above

Does it start better when it warms up!! When it does start does it bog at all when accelerating!!... if the above is true, i would try and richin the low speed adjustment (turn outward) thats sometimes will give it enough fuel to start a bit easier.. 

This message was modified Oct 14, 2011 by niper99
edgenet


If you enjoy doing it, It's not work

Location: Toronto
Joined: Nov 27, 2010
Points: 84

Re: I have a Stihl TS460 cut-off saw and it is very difficult to start.
Reply #4   Oct 14, 2011 2:41 pm
Update: I did take the compression with the decompression valve out and it was 125 this is like new. I also removed and cleaned the ignition coil. Buttom line no change. I am stumped. If money was no object I would buy a new carb. if that did not work then a new ignition coil if that did not work. I have a nice big hammer.

If you are getting paid for what you are doing No matter how much you Enjoy it,   It's a Job
bus708


Location: Maryland
Joined: Jul 24, 2010
Points: 321

Re: I have a Stihl TS460 cut-off saw and it is very difficult to start.
Reply #5   Oct 15, 2011 10:54 pm
2 cycle engines do not like old spark plugs or poor gas/oil mix. I had hell with mine too. Check your fuel lines for cracks. Change your fuel filter. Mine was sucking air. Clean or replace your exhaust , it can be clogged , that will restrict  flow and cause problems. but in a new spark plug  9 make sure it is gaped properly. Let us know how you make out.
whitetail


Joined: Dec 28, 2005
Points: 46

Re: I have a Stihl TS460 cut-off saw and it is very difficult to start.
Reply #6   Oct 15, 2011 11:56 pm
Check the vacuum ports that feed the carb that are about 1/8" hole .the gasket normally has two holes with one being active. It could be blocked.also once you have it running and warmed up spray some Deep Creep into carb I've had good luck using this Sea Foam in spray can. I do have a Stihl cut off  parts saw not sure of model no, can check if you want.
niper99


Location: London Ont
Joined: Dec 2, 2007
Points: 354

Re: I have a Stihl TS460 cut-off saw and it is very difficult to start.
Reply #7   Oct 16, 2011 2:52 am
edgenet wrote:
Update: I did take the compression with the decompression valve out and it was 125 this is like new. I also removed and cleaned the ignition coil. Buttom line no change. I am stumped. If money was no object I would buy a new carb. if that did not work then a new ignition coil if that did not work. I have a nice big hammer.


have u adjusted the carb yet??
Replies: 1 - 7 of 7View as Outline
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