Question about Garden
The starter pull cord is really difficult to pull over so I removed the spark-plug and the engine pulls over effortlessly. I suspected a blockage in the exhaust muffler however after removing this I still have the same issue. I've checked the piston and it looks clean and undamaged so I'm now suspecting that the issue is with the air-intake. The carb air-filter is clean so should I be removing the carb to see if it pulls over or not ? Regards Tim
The 266XP never had a deco valve, once the ring bedded in they did have a really good compression, the is no milage in removeing the carb, you can remove the cylinder and fit an additional base gasket, you can also increase the air gap between the flywheel and ignition unit, this will cut down some of the drag from the magnets, once you have done this there is little else to do, it is what it is.
Posted on Apr 29, 2013
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Posted on Jan 02, 2017
Has it always done this or has it developed?
Some saws have a decompression button to make it easier to pull over.
Posted on Oct 07, 2008
sounds like possible piece of carbon sitting at the top of the piston or top of cylinder.when the piston gets to top dead center it's trying to squish the carbon not letting it roll over smoothly with recoil.
Posted on Mar 13, 2009
What i have to occasionally do for a chain saw after it sits all winter is to put something like WD40 in the spark plug hole and crank it over several times. What happens to me is that the piston gets gunked up from the gas that ran down into it during the winter and it won't crank over hardly at all. This is probably your problem. I have also found that if i store my saws with the tank down, the gas cant get into the carb and do this. (Although it's better to drain tank).
If this has been a running saw instead of a stored one, you probably need a rebuild kit if the piston is scored.
Posted on Apr 15, 2009
Make sure someone hasn't run this saw without the oil in the fuel mixture. It is possible it is dry and some galling is happening. Or - if this saw is equipped with a compression bleeder (for easier starting), this could be not functioning and you're pulling through the normal compression (which can be a bit feisty!). Check for misalignment of some type having to do with the pull starter - check that the cord spool isn't rubbing on the housing when you pull. Good luck.
Posted on Nov 30, 2009
Unfortunatly this machine appears to have seized on the piston, there is no other answer but to pull it apart and see how much damage has occured, it may well be beyond economic repair, as it will probably require a cylinder and piston.
Posted on Jun 05, 2012
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