Advice

How do I know if my snowmobile Reed is bad?

How do I know if my snowmobile Reed is bad?

The material might start to flake off, too. Petals should be seated tightly against the cage, but to test, lift them with a fingernail and release them. They should make a firm ‘snap’ noise when released. If the sound is dead, the petals might need to be replaced because they’ve lost too much tension.

How often should you replace reed valves?

Reed valve petals wear down over time and should be checked every 15 to 20 engine work hours. If the reed valve petals are chipped, frayed, or no longer create an adequate seal, they should be replaced. There is no standard timeframe to use when changing your reed valve petals.

Will bad reeds cause no start?

Depending on how badly bent the reeds are, they can make the bike extremely difficult to start.

When should you replace snowmobile reeds?

If your machine’s reed valve petals are pulled away from the cage, cracked or have rough edges, the petals should be replaced. 2. Inspect the reed cage for foreign material between the reed petals and its seat. Also inspect the reed petals for deformation or other surface damage.

How long should reeds last?

2-4 weeks
A good rule of thumb is you should replace your reed every 2-4 weeks, no matter how often you’re playing your instrument. You may want to replace your reeds more frequently if you’re practicing several hours each day. Some reeds also may not last as long as others, every reed plays slightly differently.

What is the purpose of reed valve?

The reed valve function is to regulate the fresh gas intake in the crankcase and/or combustion chamber of a 2 stroke engine. The reed valve is therefore a key component for the bike’s performance: the fuel supply of a 2 stroke engine gives in fact the power and torque’s output values.

What do reed valves do on a snowmobile?

The reed valve can be thought of as a check-valve to only permit a medium – in our case either a fuel and air mixture or just air in some injected sleds – to travel in one direction. When flow attempts to push through the intended direction, the reed opens against the block and allows flow.

What do power reeds do?

Reed valve allows the mixture to move in only one direction – from the carburetor to the crankcase. It prevents the mixture from moving back to the carburetor. In the effect reed valve improves reloading of the combustion chamber with fresh air-fuel mixture. This improves power output of modern two stroke engines.

What happens when a reed valve goes bad?

Failing reed valves can result in reduced power at what should be cruising speeds. This can be a frustrating symptom as several other factors also can be present with reduced power as the symptom. However, failing reed valves reduces the fuel and air mixture.

What is a reed on a snowmobile engine?

Most modern, two-stroke snowmobile engines are either case-reed inducted or cylinder-reed inducted. Case reed means the cage is bolted to the crankcase, cylinder reed means the assembly is bolted to the cylinder. Early reed petals were made of metal, but now stock petals in snowmobile engines are made from fiberglass.

What are the reeds on a sled used for?

The reeds on the reed cages act as your “intake valves” for your engine, and the reeds are exerted to torture as they open and close thousands of times each minute. While waiting for your sled to start running erratically might be the norm, inspecting the reeds is a wise thing to do as a preventative measure.

How do snowmobiles maintain Reed petals?

Other than babying the throttle and keeping engine speeds low, there’s nothing snowmobilers can do to prolong the life of reed petals because their movement is, obviously, an essential part of what makes a two-stroke engine run. Absence of the black line around the perimeter of the center petals indicates they aren’t seated against the cage.

What is a reed valve on a sled?

One common internal piece of the reciprocating internal combustion engine is the reed valve. The reed valve can be thought of as a check-valve to only permit a medium – in our case either a fuel and air mixture or just air in some injected sleds – to travel in one direction.