Make sure you have control set on run,not choke or start. Check spark aresstor by removing exhaust cover and cleaning screen of carbon and oil build up with spray carburater cleaner and fine wire brush.Also remove gas cap and make sure that vent hole in cap is open.Otherwise it can draw a vacumn after being ran for awile and be very hard to start.One last thing is make sure that spark plug gap is correct and that there are no hairline cracks in porcelin insulation. Best of luck. Thank you.
To unplug your oiler, first remove the chain brake cover, bar and chain. Then clean thoroughly aroundthe inside. Clean the saw oil hole and groove and all holes and passages on the bar. Run the saw and see if that did it.
If not, then make a slender hook that isn't sharp and put it in the oil filler hole and grab the oil line and pull it out. clean it and check it for holes or cracks. If damaged you'll have to replace it. Continue through the passages, cleaning and checking for damages. Here is a diagram from erplacement parts that shows you the breakdown of your saw: http://www.ereplacementparts.com/homelite-ranger-ut10926-33cc-1634-chain-saw-parts-c-18807_21362_37313.html
If you still have trouble after reassembly, then you'll probably have to replace the oil pump. It is located behind the clutch usually. You can locate it on the diagrams if need be.
I hope this helps. If it does, I'd appreciate your vote. Thanks,
Check the fuel filter, air cleaner, and muffler for plugging. Inspect the fuel lines for decay/damage. Make sure that all of the carburetor fasteners are tight including those that hold the carburetor to the cylinder. Go to: http://www.drystacked.com for a helpful 12 page article on Walbro carburetor theory and troubleshooting. Pay particular attention to the location of the lower chamber gasket/diaphragm components. The two jet screws are likely to be 'D' headed which means that you need a special screwdriver to adjust them and servicing dealers are supposed to the only ones allowed to perform this adjustment (thanks to the EPA in the USA). Hope this helps!
Check the throttle trigger assembly for free play. You may have to remove the handle section over the trigger to remove sawdust/dirt. Idle changes are usually due to air leakage behind the carburetor--check all fasteners on the carburetor including the ones holding the carburetor to the cylinder. Check the muffler and air cleaner for plugging. Check the cylinder for looseness to the crankcase. Check the throttle return spring on the carburetor to make sure that it is working correctly. Hope some of this helps!
Allot of times this is caused by dirt plugging up the outlet. Pull the side cover that holds the bar on and clean using carb cleaner and compressed air. You should see a small metal tube or hole where the chain runs at the top, make sure it is clear. If you remove the cain and the bar you can start and rev the saw to make sure oil is weeping, it won't squirt out.
Take the primer bulb off.Look on the back side of it.Most will say tank and carb.If not try putting them on if the bulb doesen't get gas in it.Change them around.
If you note that the engage bar is loose probably there is a malfunction of the engage mechanism.In order to verify you need to disassemble the saw to look for any fail part inside it.To illustrate you look at this link ->Try at eReplacementParts.com : Power Tool Parts and Tool Repair Diagrams.
I can confirmed that your model is in the site but it can give a good idea how to do the job.
There is only one reason for excessive smoke from the exhaust, and that is because it is burning oil, and the oil can only come from the petrol ,so you need to refill the fuel tank with a fresh fuel/oil mix good quaility oil at 50-1 and try again. Is it possible you may have put chain oil with the fuel, or put it in the fuel tank rather than the oil tank?
The engine needs to be accelerated to make the chain turn. The chain should not be so tight on the bar that you can't turn it by hand. Make sure the chain brake is off by pulling back on the brake paddle which has a 'toggle' effect--it should snap over to the new position. If still having problems, it is time to return for warranty exchange or repair. Hope this helps!
Most saws are pretty much the same procedure.....here's a decent link. Some saws will give trouble if the brake is on when you remove the side cover so make sure the chain moves freely before removing the side cover.
Here's one on tensioning the chain...
Use a set of pliers to pinch the two 'ears' together so that the bulb assembly can be removed. Try to install the new one in the same relation as the old one so that the two fuel lines don't become reversed. Good luck!
Do a clean of all fuel components,change the spark plug (when you buy it go by the specifications on the store book the gap is set by factory) or the whole coil (aka spark plug cable and coil).Do a good gas / oil mix by 7.7 oz oil on 1 gallon gas (shake well).
There is an adjustment screw on the body of the saw right beside the bar. It tightens the chain. Loosen the lug nuts that hold the chain bar on, but do not take then completely off, then tighten the chain with the chain adjustment screw, and retighten the lugnuts. Make sure you do not overtighten the lugnuts, because you do not want to break off one of the lugs. Also be careful that the back side of the chain is running in the track in the bar for which it was designed, without any obstructions that can cause it to kick off. Be careful, and remember that when you cut your own firewood, it warns you up twice!
Check the fuel filter, air cleaner, and muffler for plugging. Inspect all fuel lines for decay or other damage. Make sure that you have fresh fuel-oil mix (50:1) and always shake the fuel can thoroughly just before refilling the tank to prevent oil starvation. Hope this helps!
