Tip & How-To about Stihl Saws

How to remove a chain saw flywheel

The official way to remove it is a 'Knock-off-tool' right hand threads matched to the size of nut that holds the flywheel tight. A 2 or 3 jawed puller will not remove the flywheel, and guaranteed damage will occur. Flywheels and crankshafts have a tapered design, so when installed with a nut, the taper tightens as the nut is tightened.
OK, you probably do not have one of those on your work bench, so lets make one or something like it.
1) Remove spark plug,
2) Insert a 12" piece of recoil rope (use about 6 or 8 inches) into the plug hole.
3) Rotate the flywheel counter clockwise until the rope has bunched itself into the top of the cylinder, stopping the piston before 'top-dead-center'
*note: this would act as a replacement for a 'piston stop'. The rope is soft, so no damage to piston or cylinder will occur. If the rope gets caught on a cylinder port, you can back up the rotation, pull the rope out, and retry inserting the rope.
4) After removing the original flywheel nut (right hand threads, so righty-tighty, lefty-loosy) *Try to measure how much torque is required to remove the nut, this will be helpful on reassembly.
purchase 2 like sized nuts, thread them onto the crankshaft (but not against the flywheel, leave them loose) so that the end of the crankshaft is not above the last nut.
5) Turn the saw over to position the flywheel up, with a medium weight ball-pean hammer, strike the top nut with a good sharp wrap.
**note: Do NOT hit at an angle, use a square, straight down strike. Do NOT strike the end of the crankshaft. 2 strikes should do it, grasp the flywheel to check to see if it has loosened.
6) When reinstalling the flywheel and nut, tighten with the same force as when removing. Each engine has an official flywheel nut torque.

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how do you remove flywheel from a chainsaw


Remove side cover, remove nut holding fly wheel on (normally right hand thread so you would turn ccw to loosen but some have a left hand thread.) now remove the flywheel with a bearing puller or have someone hold the flywheel with gloves while you strike the bolt in center of flywheel with a copper or brass hammer (be sure nut is on bolt to keep from disfiguring).

Sep 13, 2017 | Garden

1 Answer

How do you remove the flywheel to get at the coil on a ts350 stihl saw


The official way to remove it is an M10x1 'Knock-off-tool' right hand threads. A 2 or 3 jawed puller will not remove the flywheel, and guaranteed damage will occur. Flywheels and crankshafts have a tapered design, so when installed with a nut, the taper tightens as the nut is tightened.
OK, you probably do not have one of those on your work bench, so lets make one or something like it.
1) remove spark plug,
2) insert a 12" piece of recoil rope (use about 6 or 8 inches) into the plug hole.
3) rotate the flywheel counter clockwise until the rope has bunched itself into the top of the cylinder, stopping the piston before 'top-dead-center'
*note: this would act as a replacement for a 'piston stop'. The rope is soft, so no damage to piston or cylinder will occur. If the rope gets caught on a cylinder port, you can back up the rotation, pull the rope out, and retry inserting the rope.
4) After removing the original flywheel nut (right hand threads, so righty-tighty, lefty-loosy)
purchase two M10 nuts, thread them onto the crankshaft (but not against the flywheel) so that the end of the crankshaft is not above the last nut.
5) turn the saw over to position the flywheel up, with a medium weight ball-pean hammer, strike the top nut with a good sharp wrap.
**note: Do NOT hit at an angle, use a square, straight down strike. Do NOT strike the end of the crankshaft. 2 strikes should do it, grasp the flywheel to check to see if it has loosened.
6) When reinstalling the flywheel and nut, tighten with the same force as when removing. 20 ft.lb. is the official torgue.

Jan 29, 2017 | Stihl Garden

2 Answers

65 hp evinrude removal of flywheel


Remove the Flywheel nut, Get a steering wheel puller or a harmonic balancer puller that has a pin in the bottom. ( I have both and the official OMC one the OMC is the best) . Get the proper length bolts and make sure they go far enough into the flywheel to engage all the threads but not too far as to damage the coils. Make sure they are screwed in evenly. Then tighten the puller while holding the flywheel ( you can use a screwdriver by the starter or a flywheel holder)and when it feels tight hit the top of the tightening bolt (This is the one in the center of the puller with a hammer. that will "pop" the flywheel. if it doesn't come tighten more and hit it again. The shock of the hammer will pop it off. If you don't shock it, it may not pop off the taper.

Here is a picture of the OMC puller and a Steering wheel puller the OMC is the black one.
65-hp-evinrude-removal-flywheel-14w5ramivvvc2eiejtue2vl2-1-0.jpg
Here is the proper bolt. Official OMC tool bolt


65-hp-evinrude-removal-flywheel-14w5ramivvvc2eiejtue2vl2-1-2.jpg
Notice the thread length is limited as this is a shoulder bolt made especially for pulling OMC flywheels. That prevents them from screwing in too far and helps keep them even.

Apr 11, 2015 | Boating

1 Answer

how to remove flywheel cover to clean points 85 honda xr 80


You will need a flywheel pullers. Most 50 to 125cc *** motorcycles of that vintage use the same size pullers so there should be no problem getting one. When you get a pullers remove the centre nut from the flywheel and screw the pullers into the flywheel. This has a left-hand thread. There is a way of doing it without the special tool but you need to be careful or you can damage the end of the crank. After you remove the flywheel nut replace it onto the crankshaft but do not tighten it up. Instead screw it up until it's flush with the threads on the crank. You now need an assistant to insert two screwdriver 180 degrees apart under the flywheel and lever it off. While they are doing this hit the flywheel nut several sharp blows with a hammer. Don't hit it too hard or you will damage the threads on the crank. Its best to get the flywheel tool. not expensive.

Jun 05, 2010 | 1985 Honda XR 250 R

1 Answer

I am unable remove the flywheel from a craftsman eager-1 mower


Use a large pry bar...your fingers won't do it, neither will a screwdriver (need leverage)...you can use the same nut that holds the flywheel on, just screw it down til the nut is flush with the shaft. You want to be hitting the "shaft' in the center, using the nut to prevent the hammer from damaging the thread. So you want to be hitting the nut & shaft as one surface. Take notice that there is a "key" holding the flywheel in position on the shaft, don't loose it !!

May 27, 2010 | Garden

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