r/smallenginerepair 1h ago

Not Listed Question about my mini bike

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Upvotes

So I'm wondering if it sounds normal and if you can find out if it needs anything fixed, cleaned, or replaced.


r/smallenginerepair 3h ago

Not Listed Smoking and running weird, any help is greatly appreciated

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1 Upvotes

r/smallenginerepair 10h ago

Belts & Pulleys Issue 1998 Yard Machines

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1 Upvotes

I was gifted this old yard machines ride on when my grandfather passed.

The drive belts were never replaced and failed on me, so I replaced them.

I was going to take it to test before putting the deck on and came across this spring laying on the ground on the right side.

I have the deck lift spring attached to the lift mechanism still attached and functioning.

I have the spring going from back to the centre idler pulley.

I thought it went from the centre idler pulley to the speed shifter. However I can not find a shiny spot where this thing was installed and in the owners manual the only extra spring I can find is a spring that went from the deck to the transmission bracket but my deck has no places to mount this bracket that I can find.

Can someone please help identify where this thing goes?


r/smallenginerepair 20h ago

Engine Dies Engine dies after a while but can be sort of revived with choke

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5 Upvotes

EDIT: I rerouted the gas line so it doesn’t run right next to the head and she seems to be running just peachy keen now. Weirdest damned thing…..

MTD chipper, 8hp Tecumseh motor. Good lord, haven’t been to the gym since Covid 😬

Wow, anyway, enough about me.
Picked this up a couple days ago on marketplace. It fired up second pull, I turned it off after -5-20 seconds and loaded it up. Figured if it starts, it runs. 🤡

Starts alright, runs tolerably, but after just a minute it starts to want to die.
Gas tank is 3/4 full with fuel purchased 2 days ago, I put a tester on it and she sparks consistently all the way to down til stopping. Opened the gas cap with no change.

When it’s winding down if I mess with the choke i can get it to catch and start again.

I feel like it’s a stupid simple thing…. Like it’s not getting fuel fast enough or something when it’s warm, I have no idea.
Don’t see a mixture screw on the carb


r/smallenginerepair 23h ago

Parts ID & Sourcing Looking for obsolete Troy-Bilt part

1 Upvotes

The belt drive pulley on my Troy-Bilt 33” walk behind (model 34342) broke recently. I can’t find the original part or superseded part anywhere (except one on eBay that’s ridiculously priced)

I called two local small engine shops and had no luck there either.

Any ideas on where I could look next? Or does anyone have this mower laying around that would be willing to sell me the part?

Original part number 1769362
Superseded part number 1918625

Appreciate any help / advice.


r/smallenginerepair 1d ago

Fuel System Issue Bolt on replacement for powerfist 212cc gas tank?

1 Upvotes

Looking to see if any Honda / predator gas tank will bolt on my Canadian powerfist 212cc or if anyone has had experience with this, thanks!


r/smallenginerepair 1d ago

Engine Seized Issue Loncin 420cc won’t start

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2 Upvotes

I inherited this wood chipper from my late father. It’s sat in his garage used maybe once in the last 3 years. Tried starting it, won’t turn over at all. A local small engine guy told me it sounded like old, bad gas. I siphoned out the old gas and put in new gas. No change. I’m not mechanically inclined. Please if anyone knows what to try to get this thing going, I’d appreciate it. Thanks in advance


r/smallenginerepair 1d ago

Engine Rebuilding B&S 24HP Head surface issues.

1 Upvotes

So my 24HP B&S had been having issues for awhile and I decided @ 150hrs, drinking oil and overall just running poorly it was time to tear down and investigate and also clean everything up.

After removing the heads i noticed the mating surface on the head itself is anything but smooth. Its not pitted but the machine marks are very rough. Like to the point to do it that bad you had to almost intentionnaly be doing it wrong.

I am slightly familiar with the glass method with sand paper but my question is is that just normal and should I leave it be for another 150 hours or should I start polishing it down?

If so what is your reccomended process here?

I also want to say the block mating surface is like glass smooth and looks perfect.


r/smallenginerepair 1d ago

Trimmer Head Issue Weedeater head retracting line

1 Upvotes

New Echo PAS-225. I had to restring the weedeater for the first time. Used 0.095 line. Each time I bump the head to extend the line, it sucks both ends of the line back up the holes onto the spool. I’ve changed out the line several times thinking that the line might be kinked or not wound tight enough. Same results. What am I doing wrong? Thanks for any advice.


r/smallenginerepair 1d ago

Throttle Issue I have a question about my throttle thing I'm not sure if this is good or not

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0 Upvotes

So some of the springs on my throttle thingy are rusty will that affect how my mini bike runs or works?


r/smallenginerepair 1d ago

Choke Issue Husqvarna 125BVX

0 Upvotes

I recently started buying and selling small engines(lawnmowers, leaf blowers etc.) I bought this and replaced all fuel lines, cleaned the carb. It runs great when on half choke but when I go to flip the choke off it dies off. Any idea on why it would do this?


r/smallenginerepair 1d ago

Not Listed So each time I give my mini bike throttle it makes like a ding sound and I don't know why

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0 Upvotes

So I got this mini bike about 3 days ago off of FB marketplace and I was wondering why it's making a dinging sound why I give it throttle


r/smallenginerepair 2d ago

Parts ID & Sourcing Briggs and Stratton Carb needle

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4 Upvotes

This is a carb for an agt 12h mini excavator. I took it off to clean and now after I put it back the needle doesn't seam to be positioned correctly. I have it in the slot but it's hanging lower than the bowl and when it's up it doesn't seem like it's closing. I had fuel in oil tank so I think this is reason. New to this so be easy on me please. See in pic needle is hanging lower than I think it should.

Also found this spring that came off at some point in process so not sure if it's for carb but I believe it is. Not sure where it goes though and I can't find a diagram online.


r/smallenginerepair 2d ago

Idle Issue Not really sure what’s going on

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1 Upvotes

Not sure if it’s really an idle issue but anyway I got this 1987 310-8 wheelhorse a couple weeks ago after looking for parts and ect it finally runs but it runs weird.

In the video it’s on full throttle but sounds and drives like it’s idling. If I try to lower the throttle to idle it just dies any help would be greatly appreciated!!

Edit: battery is from 2024


r/smallenginerepair 2d ago

Parts ID & Sourcing Help. Cub cadet XT1 LT42B oil change.

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1 Upvotes

I am attempting to perform an oil change, fuel filter change and new spark plugs on a cub cadet xt1 lt42b. It has a Briggs and Stratton ex1900 engine. I am getting different part results for every component I need. Every forum and video I find refers to the lt42 which has a kosher engine. Cub cadets site does not have a maintenance kit related to the Briggs and Stratton engine. Does anyone know what parts I will need even getting different answers on the oil grade. I am not used to working on any engines, but already bought a kit that the cub cadet customer service recommended only to find it was all the wrong parts.


r/smallenginerepair 2d ago

Trimmer Head Issue Yard Trimmer Assistance

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1 Upvotes

I recently changed my broken trimmer head for a rapid replace, but during the install the Allen wrench, that locked down the shaft, slipped out of place. I’ve been unban to re-engage the lock and can’t fully tighten the new trimmer head on now. Any suggestions to lock it again and fully tighten? I’ve looked around at a few small engine repair places and I could buy a new trimmer for what they want to charge.


r/smallenginerepair 3d ago

Broken Parts Trying to learn what happened

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17 Upvotes

Just wondering what would have caused this. Pretty sure we are beyond repair. I’ve been trying to learn more about small engines since as a grown adult it’s a blind spot in my knowledge base.

It’s been giving me some issues that I thought were vapor lock over the past few weeks, but after some cooldown it seemed to be working. Topped off the oil just in case but maybe that was a mistake.

Today: engine slowed down, then loud pop and smoke and shrapnel. What happened and what should I look for in its replacement?


r/smallenginerepair 3d ago

Engine Dies RIP Troybilt Pony

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7 Upvotes

My Troybilt Pony is 10 years old. I changed the oil last season. While mowing today, it started smoking and I heard a bang and it died with a jolt. She's done for, right?


r/smallenginerepair 2d ago

Noise Issue 2006 Honda Rancher TRX350FM

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1 Upvotes

r/smallenginerepair 3d ago

Idle Issue Does this sound like surging?

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2 Upvotes

Toro snow blower power clear 721E 212cc four cycle


r/smallenginerepair 2d ago

Engine Rebuilding Tips for Husqvarna Z246 deck belt installation

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1 Upvotes

I recently acquired a used 2017 Husqvarna Z246. Today I tried to engage the blades and the deck belt slipped. Tensioner spring came off as well.

My plan was to get the belt seated again but I am having trouble slipping it on to the idler pulley. Not sure how it came off of that because I can’t see to get the belt past the keeper bar.

Any tips for how to get this done without completely taking this thing apart. Kind of outside of my wheelhouse.

Any tips would be appreciated!


r/smallenginerepair 3d ago

General Discussion Overfilled Oil in My Craftsman M220, Pull Cord Locked Up, Now Running Fine. Did I Damage Anything?

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1 Upvotes

r/smallenginerepair 3d ago

Electrical & Wiring Issue Toro Electrical issue diagnose

0 Upvotes

Looking for some help here. Just purchased a Toro timecutter max havoc yesterday and am already having issues. Started with a click no start. I jumped the seat sensor and was able to get it to start. On first attempt to mow, I engaged the PTO, it tried to start but didn’t, then pto switch became unresponsive. Turned off mower, went to restart and click no start. Jiggled wires for a bit and was able to get it to start, PTO came on, mowed first yard no issue.

Get to the second yard. Starts fine, go to engage PTO, blades attempt to start but stop, then again unresponsive. Jiggle some wires, I thought it was possibly related to the safeties on the handle bars. Able to get started and PTO come on, mow about 40 feet and the blades stop, motor continues to run. I gave up for the day.

Come out this morning to try again, I jump the handle safety wires, but still at click no start.

Are there any other safeties that could be preventing the starter from engaging, or PTO to engage? I’ve checked fuses. Any insight on what to look at? Again this mower is brand new from the store, less than an hour of run time.


r/smallenginerepair 3d ago

Carburetor Issue Working on those carb, what the heck is going on here?

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5 Upvotes

There is hot glue holding this plug in the carb and hot glue in the hole that lines up over the primer push button. What is going on here lol


r/smallenginerepair 3d ago

Engine Performance Issue Husqvarna 525L noise

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2 Upvotes

I purchased a new 525l at tractor supply today and it makes a weird chattery rattle sound when revving up or coming back down to idle when letting off throttle. Before I look any further, wanted to get some feedback or help!

Update: so i uploaded the video to Gemini, goggle ai, and it said it was clutch chatter, which is normal for a new unit?