Stihl MS 250 / 024, 025 Chainsaw Sprocket & Needle Cage Bearing Replacement

In this step by step video tutorial I show you how to replace the sprocket and needle cage bearing on your Stihl MS 250 Chainsaw. This same procedure will apply to many other STIHL chainsaws.
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Due to factors beyond the control of DONYBOY73 "The Small Engine Doctor", it cannot guarantee against unauthorized modifications of this information, or improper use of this information. DONYBOY73 "The Small Engine Doctor" assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. DONYBOY73 "The Small Engine Doctor" recommends safe practices when working with power tools, hand tools, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of DONYBOY73 "The Small Engine Doctor", no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not DONYBOY73 "The Small Engine Doctor".

[@raymondcline5193]

My Stihl ms271 chainsaw seized up a year ago from running fuel that was part ethanol...won't do that anymore. So.i went online to find a video of how to rebuild the engine myself. I found donyboy73 on youtube and for less than half what the repair shop wanted, I had my saw running better than new! While my saw was down, I bought a Husqvarna Farm Boss chainsaw at Keene's small engine repair in Millington, and it's a great saw! The problem.i have now is one saw is a 3/8 pitch chain and the other is a .325 pitch chain which doesn't sound like a problem until you go to buy chains, bars and files to sharpen your chains. I looked online again and messaged donyboy73 about my issue and he agrees it's possible to change my .32525 sprocket on my Stihl to a 3/8 sprocket and then use the same bars, chains, and sharpening tools on both saw...I am researching the best deals to do this change and will let you know how it goes! Thanks Donyboy73 for all of your help and sharing your knowledge!

[@MciOutdoors]

Can u do a vid of your shop/tools please I wonder wut peoples workshops and u r really cool And I want to see your workspace/tools

[@mileskubly6561]

Very good as usual. Thanks

[@donyboy73]

keep it full with stabil and premium gas

[@Crimsontide798]

I got a question if you don't mind answering, I'm thinking about getting a new weed eater what's the best brand in your opinion and maybe one brand to stay away from

[@VintageOutboardMan]

nice video Dony!

[@welshwizard822]

nice to see you grease the bearing so many dont, puzzled why you didnt pre-oil the chain first instead of putting it straight on and using it dry. Your vids are great & so helpful to the layman, keep um coming Danny ;-)

[@donyboy73]

no oil adjustment on that saw, look through my vids I have an older one on sharpening

[@donyboy73]

merci, j'ai une vieille 026, 024,025 ont tousse besoin de reparage

[@johnclarke6647]

Stihl recommends turning the sprocket 360 degrees to insure the sprocket slot is engage with the worm gear arm. If the E lip will not fit in its slot the sprocket is not engaged with the worm gear arm.

[@donyboy73]

about 2 chains, maybe 3

[@rinacapper]

I bought a 025 about 15 years ago it needs the same treatment great saw great video

[@donyboy73]

I think so dude, 91-93, what's your name?

[@donyboy73]

might need to put gas in the cylinder

[@bradenwuesthoff5639]

Hey dony, i kno a guy who just bought a shilh ms 250, and he used it once, smd drained the gas out of the carb ang tank and lhasent used it for about a month and now it wont start!

[@MrMjn5000]

I have a new generator with a metal gas tank. Do you think I'm better off keeping the tank full,adding sta-bil and running the carb dry or draining the tank completely

[@donyboy73]

thanks, the oil will get at the chain quickly

[@asyraf6147]

May i know the reason of using metal bearing instead of plastic

[@billycasselman6645]

Why will the silver ring not slide over my new ms250 sprocket

[@rippinmachines]

My ms260 doesn't seem to have the juice it used to. How much to freshen up the top end? Might need to drop er' off for a spring tune up

[@semco72057]

If my MS 250 saw will ever run like the one you have there I will be pleased, and after viewing this video I will know how to change the sprocket on my saw.

[@donyboy73]

around $25 in canada

[@donyboy73]

the 260 or now 261 is my favorite

[@mariuskoosman1236]

Dear Don, I'll replace my MS250, 20" bar to 16" bar. Can you give me the part no. of the chain for the 16" bar. Marius

[@josh33025]

I would rather have put a clutch drum with a rim sprocket on it so you can just change the rim sprocket instead of the whole drum but great video.

[@donyboy73]

for you, very expensive!

[@donyboy73]

almost the same

[@donyboy73]

have a nice day

[@donyboy73]

good for him

[@fupa74]

Donyboy, why did you say to hold the bar up while you are tightening it??? Thanks

[@donyboy73]

yes i do

[@donyboy73]

thanks

[@WilliamSeibertwillis923]

hey Donny. i just got an MS170 for free. it is my frist saw. great little thing. i dropped a few trees in my woods to open my ATV trails. then i got recruited by my neighbor to trim up his trees, i was bucking up some limbs for him and the saw kicked back and dug into the sand. it dosent cut at all now. could you show how to sharpen a chain? and is there any way to adjust the oiler on that saw, it seems to dump alot of oil

[@donyboy73]

thanks for the translation

[@wtbm123]

nice video

[@donyboy73]

thanks miles

[@donyboy73]

for some yes it is

[@donyboy73]

same procedure

[@Rick_Sanchez_C137_]

Thank you, I won't even need to refer to the manual after that. Great instruction, great explanations.

[@sugargoldy]

is there any configuration way you can put a 14 inch bar on that 250 chainsaw

[@SteveRobReviews]

Glad to see all the snow is gone !!

[@MrMjn5000]

thanks for all your great videos. I had to use one for repairing a loose handle on my mtd snowblower. I found that the bolt has snapped and was difficult to get out. After watching your video I drained the gas and oil and took off the belly pan. Rather than using a chisel, I used a punch with a hammer to remove the welded nut and it came right out. Thanks

[@denisl2406]

another good vid Dony,lâche pas le beau travaille. je me souviens dans les année 90 je travaillait beaucoup avec les sthil, et moi j'ai une 025 l'ancien model je pense que ma scie a 15ans et roule comme une neuve, maintenant elle s appel ms250 , la 026 étais la top saw dans le temps pour les gars de constructions.ses drôle que j'ai tombé sur ton Chanel sa me rappel de bon souvenirs.keep it up cheers Denis

[@scabbard56]

Excellent video. Just picked up one of these last summer. It's a great little saw and all I need around my place. Thanks, Doc!

[@timidater4803]

what kind of lithium grease do you use??

[@aj9270]

i have an older 026 would the clutch drum / drive sproket be the same part number ?

[@epiphaknee]

Great video! Excellent camera work on the damage to the old spur sprocket. That says it all! Do you have any preference between the Stihl 250 and 290?

[@TOPROLLER101]

how much for the parts

[@pavid501]

How long does the sprocket usually last with regular maintenance?

[@PrecisionTaping]

Nicely done!

[@FlintFreedomGotAnAk]

Great instructional vid dony. STIHL ALL THE WAY !!!!!!!!!

[@fishnfreak18]

That saw would be a good bicycle motor Don. Those internal clutches are a lot easier to weld sprockets on.

[@donyboy73]

for sure, I want to use a much bigger one though, lol

[@fishnfreak18]

Don't blame you haha. An old Homelite would be perfect.

[@jamespappas4236]

nice video. donnyboy

[@Deadbuck73]

Dony nice job! Is this similar for most husqies too?

[@keithinthemountains6450]

Is there anyway to convert this to a 3/8 sprocket and chain? Thanks

[@doo6211]

I would like to know that also

[@keithinthemountains6450]

@@doo6211 Info from a subscribers comment on another channel. I did mine I ordered these parts 16" picco bar/chain combo along with the requisite sprocket change. It cuts outstanding. Part numbers for those who are interested: 7 tooth sprocket - 1123 640 2002; 16" bar - 3005 000 4813; 16" chain - 63 PM3 55.

[@doo6211]

Ok thanks bud

[@TOMA21207]

Nice video, very helpful. Thanks for sharing.

[@bradenwuesthoff5639]

Niceee

[@PeterAgostiniJdcap26]

Great vid Doc..TU...

[@tskipwadoo3447]

How about the sprocket on the end of the bar, how to grease or lube?

[@donyboy73]

watch my last Q&A

[@danielpadgett2376]

your videos r the best there r so helpful thank you so much for them. I have still ms 271 thanks to you I can do a lot of the smaller maintance on it. keep the videos comeing. Also I'm a subscriber.

[@AYALARAMON100]

how does the compression have to be an a weed eater stihl fs90r

[@donyboy73]

at least 100 psi minimum, more is better

[@AYALARAMON100]

made a video of stihl fs90r please

[@zx8401ztv]

Very nice :-)

[@WilliamSeibertwillis923]

ok, thanks

[@donyboy73]

get a stihl

[@squidboy0769]

1:57 preciousss......

[@randi740]

Great Vid Dony!

[@JS-cg9gw]

ur videos are very helpfull

[@donyboy73]

thanks Josh

[@LaneVines]

Great how to video. This will work on a lot of Stihl saws.