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Homelite chain saw model ut10522 engine starves

Homelite chain saw model ut10522 engine starves for gos at high r p m how can i adjust the high speed jet seem to be fixed jets unless a special tool is needed

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All late model saw engines (in the US at least) have special 'D' shaped jet screw heads that require a dealer-only special screwdriver. Check the fuel filter for plugging and the fuel lines for decay or other damage. If you feel the H jet setting is responsible, then you are stuck taking the saw to a servicing dealer for adjustment unless you are skilled at making such a tool yourself. Hope this helps!

Posted on Sep 09, 2010

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Posted on Jan 02, 2017

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Settings for mixture screws


Most Chain Saw Engines Have Three Carburetor Adjusting Screws:
1. Idle Speed/Throttle Stop - This is the adjustment that controls how much the throttle valve (butterfly) stays open when the throttle trigger is released. If this adjustment is set too low, the engine will die when the throttle trigger is released. The throttle valve (butterfly) simply cuts off the supply of combustible air/fuel and the engine stops. If this adjustment is set too high, the high idle speed will cause the centrifugal clutch to engage and the chain will run. This is a dangerous condition and should never be allowed.
2. Low Speed Fuel Adjustment (marked L on carb, this is the low speed jet)- This is the adjustment that controls the proportion of fuel in the combustible air/fuel mixture at idle speed. An adjustment that is set too rich will cause the engine to load up and die at idle speed. A mixture that is too lean will starve the engine and cause it to race or surge. An extremely lean adjustment will cause the engine to die, too.
3. High Speed Fuel Adjustment (marked H on carb, this is the high speed jet) - This is the adjustment that controls the proportion of fuel in the combustible air/fuel mixture at cutting speed. It would not be accurate to say that this is the most important setting, because all of these adjustments need to be accurate for a saw to perform its best, but this is the adjustment that determines how the saw runs in the cut. An adjustment that is set too rich will not allow the saw to reach the RPM level necessary to build maximum power. Throttle response may also be sluggish and the engine would smoke and perform poorly. A mixture that is too lean will allow the engine to reach an RPM level where bearing failure and cylinder seizure are likely. It will also lack power in the cut and tend to run very hot.
The preceding information briefly explains rich and lean running conditions. It also identifies the three adjustment screws and their function. It should be noted that some chain saws lack the high speed adjustment needle. These saws have what is called a "fixed jet" which is set from the factory. "Fixed jet" carburetors are used to prohibit the saw operator from setting the adjustment too lean and damaging the saw. Unfortunately, they also often prohibit the saw from achieving maximum performance.

Apr 11, 2016 | Garden

1 Answer

Fuel adjustment on a homelite chain saw ut 104002


Hi Alex Sachs
Before you remove or try to adjust your low and high speed jets you should always count the number of turns it takes to lightly seat the idle mixture screw and high speed needle adjusting screws.
Be sure to write the number of turns down on a piece of paper so you will know how many turns from the seated position to open the jets when you go to reinstall them, or if you remove them for cleaning or replacement.
If you have aready tried to adjust them then the adjustments below should get it running for you for final adjustment when warm.
Normally you will adjust your idle jet to 1/2-3/4 turn open from the bottom seated position.
Then you will re-adjust the low speed of the engine when the engine is warm by turning the idle screw in or out till the engine runs smoothly at idle speed, around 1200 RPM.
The high speed jet is adjusted to 1 1/2- 1 3/4 open from the bottom seated position, after the engine is warm.
Then re-adjusted by turning the High Speed jet adjustment screw in or out till the motor runs smoothly at high speed.
Alway use the "lightly seated" method if you have not changed the screw settings.

Aug 21, 2012 | Homelite Garden

2 Answers

My Homelite ZR10926 16-Inch 33cc Ranger it is starting, idling, it dies when I accelerate it. I assume is the carburetor, maybe ? thank you.


It probably is not getting enough fuel. Check the filter in the tank. If it has been sitting with stale gass this filter plugs up.
Try running the engine with some choke. If this helps, try adjusting the carburetor high speed screw.

Jun 04, 2011 | Homelite ZR10926 16 Chain Saw

1 Answer

XL 2 auto carb adjustment, idles far too fast


Hi,

On the left side of the saw, opposite bar and chain, are 3 adjustment screws. The top two are the H, high, and L, low mixture screws. Under those is a screw marked T. This is the idle speed adjuster. Turn counterclockwise to bring down the idle speed. Adjust only when saw is warm and just until the chain stops turning.

Hope this helps. If it does, I'd appreciate your vote. Thanks,

Handie Andie

Apr 14, 2011 | Homelite Garden

1 Answer

Can't figure out how to remove cover to put chain bar and chain on a homelite pro ut10522


Make sure the chain brake is released and back off the chain adjustment screw several turns. Remove the clamp nut(s) and the cover should just pull off. Hope this helps!

May 29, 2010 | Garden

1 Answer

Hi how to tune homelite 330 chain saw carby, idle


Before adjusting anything, check the fuel filter, air filter, and muffler for plugging. Check the condition of the fuel lines for decay or other damage. Tighten all carburetor fasteners. Make sure you have fresh fuel mix in the tank. Does the primer bulb pull fresh fuel into itself when pumped? Turn both jet screws CW to stops (lightly), then back out CCW 1-1/2 turns each. This is a basic setting and should allow the engine to start and run. Start the engine and allow it to warm up, then pull the throttle full on. Adjust H needle CW until the engine starts to speed up, but still 4-stroking. Proper final adjustment is when the engine 4-strokes unloaded, but immediately 2-strokes when cutting. Release the throttle and adjust L needle CW for fairly good idle, but still allows the engine to 'follow the throttle'. Adjust idle speed screw so that the chain stops turning, but the engine will continue to run. Hope this helps!

May 09, 2010 | Homelite ZR10926 16" Chain Saw

1 Answer

CHAIN SAW QUITS CUTTING AS IT HITS WOOD.


The make, model, and occationally the serial number help us solve your problem.

Does the engine quit running? (Carburator needs adjustment)
Or does it continue running and chain stops? (need clutch refaced or replaced.) (to aggressive a chain for the size of the engine)

I think you replaced parts unnecessarily. Maybe quicker and cheaper to visit your friendly neighborhood chainsaw shop. A good one can repair it even if they do not sell your brand.
HTH
Lou

Sep 09, 2009 | Homelite Garden

1 Answer

Loses power when trying to cut wood


Check the muffler screens first. Then the spark plug. If not the case, then adjust the High setting on your carb. Prolly starving for fuel under engine load. If it is still a problem, Pull the carb and clean it.

Apr 27, 2009 | Homelite ZR10926 16" Chain Saw

1 Answer

HOMLITE 33CC CHAIN SAW SPITTING WAY TO MUCH CHAIN LUBE


this homelite saw requires homelite chain oil as there is no adjustment.

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Need to adjust carburetor jets of homelite chain saw


what is the adjustment for high and low settings on a homlite 330 ?

Jan 11, 2009 | Garden

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