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Hi i have a stihl TS 400 CONSAW THAT WONT START I HAVE A SPARK I HAVE REPLACED ALL THE FILTERS AND THE PISTON AND RING I DONT KNOW HOW TO ADJUST THE FUEL OR THE AIR CAN YOU HELP ME

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mike

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Try a new carburetor theyre cheap on ebay

Posted on Feb 03, 2019

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Andrew White

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SOURCE: stihl ts 400 wont start

If there is good fuel in the tank and the plug gets wet with fuel, and there is a good spark stating the obvious it should go, if not there could be a mechanical issue, piston scored, rings worn etc,

Posted on Apr 17, 2012

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Andrew White

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SOURCE: Stihl TS 400 won't start. I changed carburetor, all filters, spark plug, new gas, check piston is clean, no scrats or dent. whats more I have check?

You seem to have covered most things so its now down to some diagnostic tests, compression test, you should be looking for 120psi at least, any thing under 100 and the rings are shot. A pressure vacuum test, this will tell you if you have an air leak either on the crank seals or a gasket, to do this you need to blank off both inlet and exhaust and use a pressure tester through the impulse tube ( this tube will go into the crankcase )

Posted on Oct 02, 2018

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Stihl TS 400 won't start. I changed carburetor, all filters, spark plug, new gas, check piston is clean, no scrats or dent. whats more I have check?


You seem to have covered most things so its now down to some diagnostic tests, compression test, you should be looking for 120psi at least, any thing under 100 and the rings are shot. A pressure vacuum test, this will tell you if you have an air leak either on the crank seals or a gasket, to do this you need to blank off both inlet and exhaust and use a pressure tester through the impulse tube ( this tube will go into the crankcase )

Oct 02, 2018 | Stihl Garden

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Why Do I Not Have Any Spark From The Ignition Module When Spark Plug is in The Cylinder


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1 Answer

Stihl ts400 starting problem


sounds like your getting air leak around a gasket

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Carb settings for stihl ts 400


Standard settings: screw both in fully, unscrew H screw 1 full turn anticlockwise. unscrew the L screw 3/4 of a turn anticlockwise.

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1 Answer

Stihl ts 400 wont start


If there is good fuel in the tank and the plug gets wet with fuel, and there is a good spark stating the obvious it should go, if not there could be a mechanical issue, piston scored, rings worn etc,

Apr 16, 2012 | Saws

1 Answer

Hi there; my stihl ts 420 does not start easily


replace the decompression valve. also check for carbon buildup on top of piston. usually when a saw stops on its own after 5 min or so.... the piston and jug are scored and need to be replaced.

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Stihl saw TS400 will not get fuel through,NON START


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2 Answers

STIHL TS 400 won't start


I just repaired one with a similar problem--not getting enough gas. Two things corrected it and both were carb related. First I replaced a rather stiff diaphragm with a new one and second I reset the intake valve to allow more fuel into the carb. That solved it. Good luck.

The gas filter is weighted and should remain at the low point in the tank so it is an issue only when you are about to run out of gas--unless gas has been sitting in the tank for a long time. That can leave a film on the filter that can restrict fuel flow. Pull the fuel filter from the tank and scrap lightly on the filter. You will immediately note if there is a film on it. If so, replace the fuel filter.

Mar 15, 2009 | Hand Tools

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