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Governor settings for 18.5hp B&S single cylinder,31E777-2439-B1 Husqvarna

Need to adjust the governor settings on above tractor,starts and stops

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The governor shouldn't need to be adjusted unless it has been bumped or removed. But, if your sure the problem is the governor, you adjust by moving the governor arm in the direction that opens the throttle valve all the way open. Remove air cleaner and filter to inspect while doing this to make sure. Then note that direction, keep in this position, then loosen small nut on governor linkage at base of unit. With a needle nose pliers, turn small center shaft of governor linkage(the part that leads inside engine) in same direction you moved the linkage in earlier step. While holding in place tighten small jam nut. This is called a static set, which is a factory standard. Also, make sure throttle cable is in wide open position when doing this. Good luck.

Posted on Feb 19, 2014

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Posted on Jan 02, 2017

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SOURCE: husqvarna 130 governor

The governor is there for a reason, to keep the engine from over-reving and self destructing. Sure, you can get more speed by removing/raising the rpm's, if you want your rod to end up sticking out through the back of the engine case.

Posted on May 22, 2009

  • 1 Answer

SOURCE: developed slight vibration,finished mowing ,now it will not start

mower cranks but will not move. Please help

Posted on Aug 09, 2009

mowerman1857
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SOURCE: CRAFTSMAN Tractor Model%23 917257643 adjust idler

First things first! Before you installed the new belt, did you check the blades and idler pulleys to see if they all turned freely with no resistance while the belt was off and the blade brakes released? Release the blade brakes by engaging the handle with the engine off!
When you installed the new belt, did you put the back side of the belt against the flat pulleys and the inside of the belt in the V-pulleys? Did you double check to make sure you didn't inadvertently miss a belt guide getting the belt on the outside of it instead of underneath it. Did you look at the picture in your owners manual to make sure you had it routed correctly and make sure it is not rubbing against anything when you have the blade lever engaged? CHECK THIS WITH THE ENGINE OFF If you don't have your owners manual, look under the foot boards on the tractor, many of the Sears tractors have the routing diagrams there. If it is not there you can go to searspartsdirect.com , enter model number 917.257644 (NOTE the number difference) and look at the picture of the deck, it shows what the belt should look like when it is installed. You can also download an owners manual there. As best as I can remember, there is no adjustment for the idler pulleys.

Posted on Oct 25, 2009

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Keith:

First check for the obvious... fresh fuel? clean air filter? carburetor mounting bolts/nuts tight? cylinder head bolts tight? crank case bolts/nuts tight?

Now to adjust the governor:
Find where the governor shaft comes out of the engine... loosen the nut and bolt on the governor arm clamp (where the governor arm clamps to the governor shaft). Gently pull the governor arm back until it stops, Gently turn the governor shaft the same way (some have a slot for a screwdriver or a hex-head for a nut driver to hold the shaft at it's closed position) as you pull the governor arm. Both the arm and the shaft must be at their full stop of travel while you tighten the governor arm clamp. It may take another person to lend a hand to keep the governor arm at the closed position while you tighten the clamp.

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If the motor runs good at a low rpm, I want to say your problem lies somewhere in the governor. As you put load or strain on the engine the governor should increase the throttle speed on the motor. My guess is a wire, cable or something is rubbing on the linkage from the governor to the carb, if not the governor my need readjusted. I hope this helps.

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watch the governor and see if its stable or if it's the cause of surging and then it can be determined why the governor is adjusting the RPM. Hold the governor still and see if the engine surges then too.

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Turning up the bar oil?


An “OM, 455e Rancher, 455 Rancher, 460 Rancher, 2009-09, EN, FR, ES” Follows (may not be your saw):
http://weborder.husqvarna.com/order_static/doc/HOUS/HOUS2009/HOUS2009_1151382-49.pdf
An excerpt from page 38 of the above OM follows (forcing it may render it inoperative):
Adjustment of the oil pump
Adjustments are made by turning the screw using a screwdriver or combination spanner.
The machine is supplied from the factory with the screw set to position 2.
Turning the screw clockwise will reduce the oil flow and turning the screw anti-clockwise will increase the oil flow.
Recommended settings:
• Bar 13"-15": Position 1 (full CW)
• Bar 15"-18": Position 2 (center)
• Bar 18"-20": Position (full CCW)
These recommendations apply to Husqvarna’s chain oil, for other chain oils increase the oil flow by one step.
WARNING! The engine must be stopped when making adjustments.

All OMs and IPLs can be found here:
HusqvarnaUSA.com
http://www.husqvarna.com/us/homeowner/support/download-manuals/
Enter the 3 digit model number (no XPs, Es, just the numbers)
Serial number decode – useful when downloading IPLs and Manuals
06 1500198
06 = year produced – 2006 (single digit before 2000; please contact Husqvarna for single digit clarification http://www.husqvarna.com/us/homeowner/support/customer-support/)
15 = week produced – March
00198 = 198th unit Husky produced that week

If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
Lou
Thank You for using FixYa.

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Throttle control won't work after i cleaned the carb and disconnected the governor. when i move the throttle handle it does move the throttle control on top of the carb to the high position but when i...


Hi again Ed,
Starting at the carb throttle shaft, your linkage rod (with tiny spring wrapped around it) should be connected directly to the governor's arm. If there's more than one hole in the arm, connect the rod in the upper-most hole.
Now, at the base of the governor's arm is another hole (possibly on a tab jutting from the arm). The main governor spring should be hooked in this hole and then back to the sliding throttle control that moves when the lever on the dash is moved. (This one definitely has a tab and hole.)

The choke cable end hooks directly on the choke shaft and it has intuitive movement. Verify that the choke butterfly closes and opens relative to the cable control on the tractor's dash.

To insure that we only do this procedure ONCE, and we get it right the first time, let's set the internal governor to base-line at this time.

With everything bolted back up, move the throttle control lever on the tractor's dash to full throttle. Then get a 3/8 wrench and a slotted screwdriver and locate the round governor shaft coming out of the engine block. The governor arm attaches to this with a clamping-bolt. You will notice that the round shaft is slotted for a screwdriver as well.
Loosen the clamping bolt slightly with your 3/8 wrench, insert your screwdriver and rotate the round shaft clockwise until it stops. (It has VERY little travel, so turn it both ways to verify that your are at FULL clockwise position.)
Hold screwdriver there and move the governor's arm in the same (clockwise) direction until the carb's throttle is set to WIDE OPEN throttle. Still holding the screwdriver clockwise, retighten the clamping bolt with the wrench.
Next, move the throttle lever on the dash of the tractor to idle and back to full several times and observe the carb's throttle shaft, it should come down from full throttle to idle and back again freely.

Start the engine and be prepared to shut it off if it over-revs.
If it doesn't over-rev, your base-line settings are correct.

By bending the tab on the sliding throttle control (the one that has the main spring attached) you can now increase or decrease spring tension and change top speed of the engine. Do this in small increments and if you have a tachometer for single cylinder's set top speed to 3400-3600 RPM.

Sorry this is lengthy, but as mentioned above, we only want to do this once.

Hope this helps, and feel free to ask away if you need more info!
Dolf-

Oct 15, 2009 | Garden

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