Top 20 Husqvarna , No.455 Rancher, 20" Gas - Powered Chainsaw Questions & Answers

You need certain things to be correct for the engine to run, clean fuel getting to the cylinder, a spark ( occurring at the correct time ) and the machine to be mechanically sound. So remove the spark plug, is it wet? if not remove the hose and filter from inside the fuel tank, remove the filter and replace, if the plug is wet, then place the plug against the cylinder ( away from the open plug hole ) crank the engine, is there a spark? if not replace the ignition unit, if there is a spark, remove the muffler and check the condition of the piston face through the open port, any signs of scuffing or melting the saw has seized and will require stripping to assess the condition.

The wire linkage has a short Z bend in one end this hooks into the throttle lever from the outside, the other end has a long loop this goes into the trigger arm from the outside, you will need to twist the top of the trigger arm slightly to allow the linkage to go into the hole in the trigger arm.

a few of things here, the pick up pipe can get kinked thus slowing the oil flow down, the filter on the end of the pick up pipe may be partly blocked,if you are using non fling oil and the outside temperature is very cold you may need to thin the oil to allow a better flow, finally you can modify the pump shaft, this is done by increasing the angle on the end of the pump piston ( the bigger the angle the bigger the throw of the shaft and the more oil is pumped ) this is a final resort and has to be done with care, you have to remove the shaft from the pump body and hold against a grind stone to increase the angle

what are you working on dude ? you failed to tell us the make, model and item you have removed the clutch from, then replaced........ likely - either it didn't work before you started, or it is now defective due to your inadequate attempt to fix it..... suggest - get a competent repairman to look it over and fix it.

Go to partstree.com type in model no then go to crankcase and you will see fuel tank vent and location
on diagram. Be sure to check your fuel line in tank to make sure it is not broken.

indicates incorrect length chain in use the adjustment slots should be about 1/3 when fitted moving close to 1/2 when adjusted the correct adjustment is when the chain in the center of the bar is lifted up the bottom segments of the chain are still in the bar groove make sure that the oiler hole is not blocked from saw dust and chips

No spark could be a number of issues. Break in ignition wire, faulty switch, incorrect timing space, faulty ignition module, bad sparkplug or the spark plug lead. The running problem is most likely a fueling issue, check the fuel lines, filter and make sure fuel is getting into the cylinder.

The Husky website might provide an exploded view for buying parts. That should help.OR try Here http://www.ereplacementparts.com/husqvarna-chainsaw-parts-c-114486_114487.html

gas has gummed up carb,ethanol has eaten diaghram,rebuild carb,or buy a new one from ebay for 15 bucks,use gas that doesnt have ethanol,get it from a marina.

Most 2-cycle chain saws have 3 carburetor adjustments; idle speed, low RPM fuel/air mix and high RPM fuel/air mix. The fuel/air mix needle valves will probably require a "special" driver tool to adjust them. Be careful with the adjustments, you can really mess things up by incorrectly adjusting them, then your saw goes from running poorly to not at all.

For the 455 Rancher. First check the idle speed. It should be 2700 rpm. Clutch engages at around 3800 rpm. If the clutch is engaging below the 3800 then clutch springs need checking and replacing if needed. If you can't get the idle speed down check for air leaks.

hope this helps

I have 4 husky\'s and they leak a little. On the bottom of the saw there is a oil flow adjuster screw turn it down a little also check oil cap gasquet.

It should pull out once the screw is removed. You may need to use a pair of long nose pliers to pull it out with some force.

Coil too the kill switch , kill switch too the ground good clean metal.. Kill switch is just making the ground conection.. Goodluck..

first inspect the worm drive gear that makes the oiler work. this is located behind the clutch and drum. also inspect the bar oiler holes for blockage.

Sounds like a fueling issue. (lack of) Check fuel filter Check carb diaphrams, possibly replace and clean

http://www.searspartsdirect.com/partsdirect/user-manuals/13500/455RANCHER-Husqvarna-Parts-CHAIN+SAW-manual?pathRender=fromManualTabPage

Try opening the choke half way as soon as it starts then all the way open in a few seconds... It only needs the choke to start and should run fine in less than a minute after idleing with the choke not engaged...

Hummm?