Source: Road Bike Reviews - how to fix a dirt bike that wont start

How to fix a dirt bike that wont start - What To Do When Your Bike Won't Start - Dr. Dirt - Dirt Rider Magazine | Dirt Rider

Photo of two people riding dirt bikes on a dirt track. The gear ratio is different for each purpose, so a race bike will not perform as needed if The off-shore bikes tend to require a lot of upkeep, repairs, Loctite and Do I need electric start?

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If the bike coughs and sputters, I'd lean toward the fuel delivery side. But don't forget, fouled spark plugs will certainly make a bike hard or impossible to start, and may mimic a fuel delivery problem.

Actually, since I'm pretty lazy, I always check the easiest thing to reach first. Loosen the float-bowl drain screw and allow some of the fuel to run out.

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If possible, catch it in a small container. If there is water in the fuel, it starrt appear as globules. If water or lots of dirt is evident, drain the float bowls completely and allow them to refill before trying to start the bike. If the float bowls are dry, or there is little fuel in them, the problem most likely lies in the fuel delivery system.

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If the bike has a vacuum-operated petcock, turn it to prime. If fuel starts to flow, the problem lies in either the petcock or the vacuum line; a little detective work should pinpoint which.

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If the petcock is manual, move the lever to reserve. If fuel flows, you're either low on fuel after all, or the petcock main feed is plugged or damaged. If no fuel flows, remove the fuel line at the petcock and try everything again.

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If fuel flows from the petcock but doesn't reach the float bowl, the problem is most likely a plugged fuel filter or line. Some motorcycles, primarily those using remote fuel tanks or fuel injection, use an electric fuel pump. Testing procedures for these vary, so you'll need to refer to the shop manual for the correct method. But as a rule of thumb, you can test the pump by one of two methods. Start by disconnecting the fuel line from the wonr or how to fix a dirt bike that wont start.

Q the open end of the line in a container and turn the key on.

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Fuel should gush out of the line. Some pumps are only activated when the engine is cranking or running. If the first test didn't produce any results, try cranking the wwont for a few seconds to see if things change. If neither method produces any results, chances are that the fuel filter is plugged, or the pump or the circuit controlling it have failed.

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If you suspect the pump itself, check the electrical connections and the fuse that feeds it before condemning it. Bear in mind that troubleshooting a fuel injection system requires some very expensive and specialized equipment.

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My recommendation here is to tread very lightly--this is really trained-technician territory. No less a consideration is safety.

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FI systems work at extremely high pressures; get in front of a working injector nozzle and you're going to be in a world of hurt. Injectors rarely fail. It's usually the pump that's the troublemaker.

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Most FI pumps run for a few seconds whenever the key is turned on to pressurize the system. Get in the habit of listening to yours when the bike is healthy so you know what it should sound like.

Jan 23, - Buying used is a great way to go when you are looking for a dirt bike. Before you even start looking for a bike, figure out exactly how much you are willing to spend prequalifying questions before you decide to head over and check out the bike. If they won't, it's probably a sign you should keep looking.

If she won't start, take a good listen. Can your hear the pump run? If not, check the pump fuse. Are you nuts?

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Charge the battery! Actually, the electric starter is a little slow for Pro Row starts, but it gives great confidence for charging turns. If you do lock it up, simply pull in the clutch, hit the button, and dump the clutch!

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For you SX owners:. Gas on, choke on, twist the throttle once, no throttle kick. Repeat until it starts. Starting after a fall: Thhat doesn? Failing that: With a hotstart: Warm engine, put it in gear, release clutch to kill motor. Rock it to make sure clutch isn?

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Continue Reading. Prev Post MT. You might also like More from author.

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Home Page News. Home Page Carousel. Prev Next. Follow Us dirtbikemag. This website uses cookies to improve your experience. KTM SX. Honda CR Why do we like it?

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Competitive straight out of the box, lots of power, easy to ride fast. This bike is regarded by many as the most competitive four stroke bime the market. Inthe SX-F changed from a carburettor to the more modern and preferred EFI electronic fuel injection system.

Our advice is to go for a model onwards. Reliable, good handling, great standard spec, top build quality.

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The YZ is a two-stroke machine perfect for those just getting started in the sport. Renowned for its great handling capabilities, the YZ boasts arguably the best standard suspension setup of any motocross bike. The YZ may not be the fastest bike in its engine class, but it might well be the syart fun for your buck.

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Check out the specs for the Yamaha YZ here. Saddle up a CRF if you're power-hungry. You're along for the ride. To the layman, it looks like the safety gear hasn't changed much over time.

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That can't be true. Certain elements have changed quite a bit.

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The two single biggest improvements—one is knee braces, the ones you can buy off the shelf. They can save a severely blown-out knee, an MCL starrt things like that. And then the foot protection.

There's not a lot of ankle injuries—the boots are so much better than they used to be. The same thing applies to motorcycles.

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They run bigger foot pegs than they used to, to give guys more of a platform, and the suspension is so much stronger—but in turn, the guys are jumping 'em further and jumping 'em bigger.

So once again, gravity comes back into play! There's such a variation in crash energies, and the certification for motorcycle helmets—and when I say certification for helmets, it's the same certification for all motorcycle helmets, whether it's a street helmet, or a scooter helmet, or a motocross helmet. They go after the worst accident you could possibly have, the energies you're going to see and actually possibly survive. And they kind of set the standard around satrt.

So helmets historically have been manufactured to pass this standard that's pretty high-energy. There's now a lot of focus on low-speed energy, protecting the wearer against low-speed crashes, mid-speed crashes.

A new system of injuries is rotational, where your brain is actually rotating inside your head. And that can cause connective-tissue tears, which can lead to concussion, brain injury, that sort of thing. So we're doing more comprehensive testing in a development process.

In the end what you get is a product that's gonna help protect you in statt lot more variety of types of crashes. Jeremy Appleton, Alpinestars: Safety's kept pace with the development in technology with bikes and tracks, how to fix a dirt bike that wont start bit of the way. With body armor—because motocross is such a djrt activity, either taking place inside a stadium, which is hot, or outdoors, in the summer months—riders have been reluctant to wear a lot of close-body protection.

Simply because it increases the physical stress. It's hot and heavy. So with the advent of improved stsrt and better design and production techniques, we have much lighter, american action camera manufacturer improved, body protection. So riders are now able to wear ffix impact shields under their jerseys.

In the past, you might have seen riders just wearing a basic plastic protector on top of their jersey. It just prevented them from being bruised heavily, from all the wotn and dirt fired out from the bike they were following. That rirt like a remarkable amount of how to fix a dirt bike that wont start, in terms of protection.

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Things have changed, particularly in the United States. With the advent of these huge aerial Supercross tracks, we've also introduced neck protection, because we're seeing increasingly—and unfortunately—catastrophic neck injuries.

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Is the increase in paralyzing crashes attributable to anything specific? The [faster] bikes and the jumps have undoubtedly contributed, simply x riders are traveling quicker, flying higher, and the margin of error is coming down.

News:Jump to Picking the Right Dirt Bike for You - Picking the Right Dirt Bike for You dirt bike starting out because you might decide to fixing up the cheaper, battered, bike compared to If you're too small, you won't have as much.

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