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Questions tagged [small-engine]

Engines used in applications such as lawn mowers, go carts, chain saws, compressors, small pumps, generators, garden tractors, and string trimmers. Frequently hand (pull) started and without an electrical system beyond the spark plug. Technically there is an overlap with motorcycle / scooter engines, but for questions related to motor cycles or scooters those tags are preferred.

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74 views

2 Stroke engine magneto ignition system

I've got a 2 stroke 1 cylinder engine and its ignition system doesn't seem to work. I'm having problems with my magneto ignition system and I need help connecting everything up. I think I've ...
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1answer
20 views

White outdoor lawn tractor issue

I have a White Outdoor lawn tractor with Tecumseh engine. I have the following issues and need to find the culprit: Heavy white smoke Oil smell gas There's oil under the air filter and it's leaking ...
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0answers
27 views

Craftsman leaf blower, did I destroy the carburetor?

I have a very gently used Craftsman leaf blower with about a 27cc 2-stroke engine. It never ran all that great, mostly it would start up fine then run for about 4 minutes until it started to slowly ...
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1answer
18 views

50cc Scooter only runs when manually choking air intake

I bought a 50cc Yamaha Zuma off of craigslist, and it's had some aftermarket parts put on it (exhaust, 70cc big bore kit, new carb). I cleaned the carb and converted the throttle to a one cable set-up ...
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2answers
31 views

Using SAE 10W-30 in both Vehicle and Lawnmower

I have a Toyota vehicle with the 1MZFE engine, and have purchased SAE 10W-30 engine oil to put in this car. My question is this: Is there a problem with putting this kind of oil in my Troy-Bilt ...
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0answers
40 views

carburetor Leaking gas oil mix when fuel lines replaced

Disclaimer I know this is for a blower not an engine, but was not sure where exactly to pose the ? I'm trying to assemble the fuel lines for the Ryobi BP42 two cycle blower, someone else took it ...
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1answer
13 views

New carburator gas coming out of small tube inside

I installed a new carburator on a 6.5 hp Tecumseh motor for a wood chipper. After hooking the fuel line back, gas flows steadily out of the small tube inside the carb. I am not very mechanically ...
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0answers
14 views

Honda GX620 Engine not running on LPG

Okay it's not a car, it's in a generator, but I couldn't find anywhere better to ask. I've got an GX620 Honda V-TWIN it runs fine on petrol but won't run on lpg, it's meant to be dual fuel. If I ...
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2answers
111 views

Using 10w-30 instead of 5w-30 engine oil

My car is Suzuki alto japan 2017. According to the owner's manual, car manufacturer recommends 0w-20 or 5W-30 engine oil. But the previous owner has used 10w-30 oil. The average temperature of the ...
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0answers
41 views

Snowblower is hard to pull in cold

I have a pull start blower from sometime in the 90’s. It’s a beast! However, I need to put a heater on it for about 10 minutes so I can reasonably pull it. Otherwise, it’s super difficult to pull ...
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1answer
200 views

Briggs and Stratton “Just Check and Add, never change oil” engine

Recently a relative was bragging about their new mower, with a new Briggs and Stratton "Just Check and Add" engine, with no oil change recommendation. Better than sliced bread. I remember when a ...
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0answers
15 views

1987 skidoo elan carb issues

I am trying to figure out either what model carb I have (to purchase a rebuild kit) or spec settings on the fuel/air jets. Tried to start her up tonight, ran for a minute then got flooded. Anything ...
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0answers
19 views

Trimmer has suddenly stopped starting

It's a Poulan Pro P1500 trimmer. Carburettor was changed recently and has been cleaned. Fuel can be seen on the spark plug once it is removed. Inline spark plug tester shows that ignition coil is ...
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1answer
48 views

Lack of compression after adjusting intake valve

I was recently tuning my 4 stroke lawn mower to shoot flames. I messed around with the intake valve, and soon found big flames coming out my exhaust. How ever the next day there was no compression and ...
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0answers
24 views

Four cycle engine with oil in gas. What should I do besides new spark plug?

Honda GC160 5.0 emits thick blue smoke. I used it several days when it came to a stop. Filled the tank with fresh (no mix) gas & it would not start. Bought & changed the old spark plug. After ...
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0answers
21 views

Oil viscosity question

I recently made the mistake of over-filling my ride on lawn mower/Briggs & Strattan motor. Damage to the motor is done now and it's blowing heaps of smoke and fowling the spark plug. Question: Can ...
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0answers
2k views

Two stroke engine dies at full throttle

I've got a two stroke strimmer (new last summer). It starts fine and responds smoothly to the throttle but approaching full throttle it cuts out. I've tried changing the fuel for carefully measured ...
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1answer
113 views

White smoke from Husqvarna 128DJX trimmer

I'm working on a Husqvarna 128DJX for my dad that's smoking while under load. At idle, there is no visible smoke. At half throttle, you see white smoke, and at full throttle, you really see it. On top ...
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0answers
17 views

Should starter fluid alone suffice to get a small engine to catch?

Kohler K141, ~6 hp. 'L' head (plug is to the side of the cylinder) If it needs saying, it doesn't start. I'm suspicious it's not getting fuel, though I find no reason that should be so. Over the ...
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1answer
337 views

briggs stratton 16 hp ic single cylinder

I have a Lincoln welder with a 16 hp briggs Stratton engine that will only run with the choke closed. what could cause this?
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1answer
2k views

String trimmer revving too high at WOT?

Someone gave me a 52cc string trimmer for free because they say it wasn't working. We would only get it started by dropping a few drops of fuel into the cylinder, and it would idle quite high for a ...
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2answers
102 views

Tecumseh Yard Machine (156cc) does not start and there's no combustion: Does this sound like an ignition coil issue?

I recently picked up a small mower on craigslist as a fun side-project, but I have had only a little experience with small engines, and limited limited funds for troubleshooting. Could someone give ...
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0answers
66 views

Do you need this lawnmower part and what does it do?

I have a craftsman riding lawnmower model 247.203744 I started it up and heard a sound that made a kind of plastic getting broken sound... which it was. There is a black disk inside the engine ...
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3answers
5k views

Help please! Loud clicking/ knocking sound coming from engine

I really appreciate anyones time. I own a 2003 Pontiac Sunfire 5-speed manual with the 2.2L l850 Gm engine with about 320,XXX kilometres for reference. Anyways, so I went drifting last night and did ...
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0answers
28 views

Engine/model information for lawnmower

I need a riding mower. I am low on dollars and my neighbour has a year-old John Deere that needs an engine. What do I need to know about the motor to search for one? Where do I search? And would it be ...
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0answers
74 views

Weed Wacker Not Running Properly

I have a Remington weed wacker that is ~2 years old. It worked great for the first 2 or 3 months but then I could not get it to work properly. I have tried new gas, new plug, adjusting the idle on ...
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2answers
2k views

Lawn Motor Troubleshooting - No Spark?

I filled up my lawnmower from a gas can earlier today and spent about 15 minutes trying to pull start it. I've checked the oil level and color and both seem fine to my inexpert eye. On two separate ...
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0answers
38 views

Nitro R/C buggy starts then engine quits

I have a nitro remote-controlled nb16 buggy. When I put the glowstarter in the engine and start the engine and remove the glowstarter everything runs fine. However, once I press the accelerator on ...
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0answers
93 views

Carb adjustment on carb where L and H aren't marked

I'm working on a string trimmer currently whose adjustment screws are not labeled - or the labels have worn off with time. :) For reference, the carb is a Zama. It seems to me that there is a ...
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2answers
753 views

Keep control cables from freezing on snowblower

Context: I have a Husqvarna 1830HV snowblower. The chute is controlled by steel cables a lot like bike brake cables. They work almost exactly like bike brake cables, in fact, except for the fact ...
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2answers
520 views

Briggs & Stratton 7.5 hp wood chipper loses power after an hour of runtime

My Sears woodchipper with a 7.5 HP Briggs & Stratton engine cranks up great even after sitting for months (I use gas stabilizer). Then it works fine for about an hour...then starts losing power/...
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1answer
34 views

Reliable budget small diesel car - around 4-7 years old [closed]

I'm looking to buy a small budget diesel car in the UK I was wondering what are some reliable suggestions. I have a D4D Yaris at the moment that is playing up. I have been looking at the Hyundai I20, ...
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1answer
6k views

Lawn tractor, difficulty starting in cold weather

I have a Troy Bilt Bronco riding tractor, about 6 years young, with a Kohler Courage 20 (19hp) engine that is extremely difficult to start in temperatures below 40F. This is a persistent problem. ...
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1answer
369 views

Is it OK to run a trimmer without the plate-filter support?

I've discovered the answer to this question by unfortunate experience, so I'm sharing it... I have an XT200 Weedeater Trimmer. In between the carburetor and the air filter is a thin metal plate ...
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1answer
594 views

Why is there a power loss in my small engine motorcycle at a certain RPM range?

I own a TVS Apache RTR 160 (a single cylinder, air-cooled, carburetor motorcycle.) with close to 35000 kilometers. The bikes loses power in 2nd and higher gears, between 5-6.5k RPM. It loses power ...
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3answers
10k views

Float carburetor leaking gas

I have a Troy-Bilt rototiller that I put back into service recently (piston was rusted in place; exhaust valve was rusted shut; etc.), but I still have one major issue with it, and that is that the ...
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6answers
19k views

What caused bent intake push rod?

My riding lawn mower has a Briggs & Stratton 18.5HP Intek motor (Model number: 31P777-0602-B2). The other day it began bellowing dark smoke, then sputtered and died. It would not start following....
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1answer
592 views

How to install muffler gasket on chainsaw?

How to install muffler gasket on chainsaw? Do I simply put the gasket on? Do I need to apply gasket sealant/sealer, oil, or grease? I have a Husqvarna 450 Rancher chainsaw. The old gasket between ...
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1answer
545 views

Can an ignition coil melt-down?

I'm having trouble with a John Deere 210 Lawn & Garden Tractor. I mowed happily for an hour in the morning, then it quit on me after five minutes of mowing in the afternoon. No noises, just died;...
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2answers
1k views

Adjust carburettor without hi-speed adjustment

I've got a Walbro WA226 with no hi-speed adjustment screw. Unfortunately, it seems that the issue is in the high-speed jet. Adjusting the low screw can set me up so long as the throttle is at full, ...
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2answers
1k views

Is my Honda push mower dead cause of too much oil

Long story short. I bought a brand new Honda 21 from Home Depot. Load it on the trailer and head to my moms to cut her grass. I was in the market for a mower anyway and researched this one. The mower ...
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2answers
64 views

a/f mixture for 4 cycle brushcutter

Hi I have a ryobi rbc430sbsb 4-cycle brushcutter. When I use brus cutter it seems to start relatively easy and seems to work reasonably well but when switched off it seems to be dumping fuel out ...
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0answers
113 views

TO hone, or NOT to hone,,, That is the question

I have one of those motorized bikes. I got it as a gift and it was used. I went to torque the head bolts one day and found out the studs were glued in with that weld stuff(brand withheld), and one had ...
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4answers
3k views

Is it ok to plug in battery backward to do compression test?

On engines with compression release valves, the recommended method for testing compression is turning the engine in reverse direction. I'm working on a lawn tractor (with a Kholer K241AQS), so there ...
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1answer
243 views

B&S 500 Series push mower stalls when forward momentum stops

I have a Briggs & Stratton 500 Series engine on my push mower. Lately, whenever I am moving forward with the mower and then stop the engine begins to stall. It never actually dies but comes very ...
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1answer
188 views

how to boost petrol engine of a small hatchback

I want to boost 1.2 litre petrol engine of my hatchback. What are possible ways for it except adding a supercharger?
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2answers
91 views

Do any internal modifications need to be completed if switching over to a non-standard fuel delivery carb?

I'd like to convert over my 350 small block to a propane carb setup but I am unsure if there needs to be any modification to the motor itself. When converting over to a propane solution do you need ...
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1answer
161 views

Overfilled my B&S 725ex self propelled lawmower

I overfilled my B&S 725ex self propelled lawnmower. I cut front yard no problem. Yesterday I went to cut back yard. I realized I had overfilled it with oil. I drained oil refilled to proper level ...
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0answers
61 views

Supercharging small engine [duplicate]

How do I determine safe supercharged pressure and cfm for a small engine (149 cc)? Yamaha fz 2.0 (India) 9.31 cubic inches 13.1 PS (12.9 BHp) Fuel injected 18.4 engine cfm
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1answer
548 views

Supercharger calculations

How to determine safe supercharged pressure and CFM for a motor cycle engine (fuel injected 149cc (9.31 cubic inches) 12.9 bhp?