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Jun 24, 2020 · Does your engine hunt or surge at part throttle or run rough? It may be caused by this little jet being plugged in the top of the carburetor body! This is fo...
- 7 min
- 74.9K
- Bear Kreek Boys
May 24, 2021 · My son has a 4-stroke self propelled ‘Challenge’ mower;...the engine always starts first time but it ‘hunts’ continuously (and annoyingly) when in use. I've checked the usual suspects, ...air filter...spark plug/cabling...fuel etc, but nothing obvious.
- What Is Engine 'Hunting'?
- Checking The Fuel
- Replacing The Fuel in Your Lawnmower
- Check The Air Filter
- Sponge Air Filter
- Paper Air Filter
- **If It Is Still Hunting - Carb Jets:**
This is when the engine revs up and drops back down rapidly on a cycle. It is usually caused by a lean fuel mixture - ie.) not enough fuel in the fuel-air ratio. This is controlled by your carburettor and governor.
Please make sure that you are using unleaded fuel that is no older than 30 days.If the fuel you are using is older than 30 days, please remove and replace the old fuel.First, please remove the air filter from the lawnmower.To remove the air filter, unclip the filter cover on the side of your engine.Some models may use a securing screw which can be removed by hand or using a screwdriver.You may then remove the existing fuel by unscrewing the fuel cap, tipping the lawnmower onto its side and emptying the fuel into a container.Please identify whether you have a sponge or paper air filter.To access the air filter, please unclip the filter cover on the side of the engine.Some models may use a securing screw which can be removed by hand or using a screwdriver.A clean sponge air filter would be either grey or yellow.If you have a sponge air filter which is dirty, you may clean the air filter using warm soapy water.Please ensure you leave the filter to fully air dry before reinstalling.A clean cartridge air filter would be white in colour.If you have a paper air filter, it is not possible to clean the air filter.If the air filter is dirty or damaged then you will need to purchase another filter.It is most likely that thejets are blocked inside your carburettor(the part which regulates the fuel into the combustion chamber).You can either try cleaning it yourself (purchase a 'carburettor cleaning kit'), or taking it to a local garden machinery centre for a service.Jun 15, 2019 · Hi in this video I change over a crankshaft on a Honda hrd536 Mower gxv160 engine, thanks for watching.
- 44 min
- 10.7K
- Mend It Man
If you notice that your Kawasaki lawn mower engine is surging, there are a few possible causes. First, check the air filter to see if it is clean. A dirty air filter can restrict air flow to the engine, causing it to run lean and surge. Next, check the spark plug to see if it is fouled or damaged.
Apr 8, 2017 · #1. Hi all I've got a Challenge Xtreme lawnmower with a Chinese SV150 engine. It starts well but hunts/surges really noticibly. I have stripped the carburetor down and cleaned it thoroughly with carb cleaner but no difference. I have tried new fuel which didn't change anything either.
People also ask
Does a challenge Xtreme lawnmower start well?
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So if suddenly you find yourself with hole in your crank case, a broken conrod and a warped piston, but otherwise the engine looks fine, don’t believe everyone that the engine is scrap metal. You just might be able to fix it yourself!
