Saturday, September 27, 2008

My Royal Enfield won't start: Now what?

You're all suited up for a ride on your Royal Enfield Bullet and it won't start. You have the fuel tap "on", the ignition on, the Kill Switch "on", the enricher (choke) "on" and you swing the kickstarter with no luck. Now what?

Relax. I mean that literally: get comfortable. Get your blood pressure down. Take off your helmet and jacket. Stretch. Have a cup of coffee. You want to approach the motorcycle with a fresh eye. Remember, the motorcycle is watching. You want it know you are the master.

Your first step should be to turn off the ignition and fuel tap choke and swing the kickstarter three or more times to clear the engine. Turn up the idle screw (clockwise as you face it) half a turn. That gives the motor a bit of extra throttle as it starts but not enough to flood it. You can turn the screw back down after the motor starts.

Try starting the motor without the choke. If that doesn't work, try with the choke. Still nothing? Have a sip of coffee and then, in a relaxed mood, take things step-by-step.

You only need three things to start a Royal Enfield: gas, compression and ignition. An empty gas tank is the easiest thing to rule out, so do that first. In Zen and the Art of Motorcycle Maintenance author Robert M. Pirsig described how a motorcycle trip came to a sad end. How? Because he refused to believe the bike was simply out of gas. If the tank has gas, check for a pinched gas line. All OK? Good.

Check for compression. Swing the kickstarter through its arc with the ignition off. If it comes to a point past which it is difficult to move the kickstart lever, compression is fine.

If not, compression is escaping. It can only get out of the cylinder three ways. It can go through the valves if they are too tight or a bit of carbon is holding one open. Swinging the kickstarter repeatedly should clear any carbon and the valves will only be too tight if you adjusted them last night and left them set wrong. They don't get tight on their own.

Compression can escape through the decompressor. Check that the cable that operates it isn't binding (perhaps when the handlebars turn) , opening the decompressor.

Finally, compression can escape past the piston rings. Remove the spark plug, put a dollop of oil in through the hole, replace the plug and see if compression returns. It should.

Now check for ignition. For this you need electricity. A Bullet with a dead battery will not start. Does the horn sound loudly? If so, the battery is good enough.

Set the Kill Switch to "run" and the ignition to "on" and swing the kickstarter. Is the needle on the amp meter swinging to the left and back to center as you do this? If so go on to the next step. If not, there is a bad connection somewhere. If that's the case you'll have to track it down and you might not be going riding today. Before you give up, reach into the back of the casquette and wiggle the wiring looms in there. This once brought the Bullet back to life for me.

If the amp meter is swinging normally, pull the spark plug and replace it with a new plug even if the old one looks OK. You only have one spark plug in a Bullet, so that one plug is 100 per cent of your ignition system inside the cylinder. You want it to be perfect. You do have a spare spark plug, right?

Remove the points cover and, with the ignition and Kill Switch "on" use a screwdriver to gently pry the points apart. If they spark you're good, but turn off the ignition and use a business card or other flat cardboard to clean the contact surfaces.

Your motorcycle will start on the very next try. If not, feel free to say anything you want about me in a comment here.

8 comments:

  1. Hi David,
    please look at this well known link.
    >http://www.cybersteering.com/cruise/feature/bullet/improve.html<
    Half way down the page you'll find a chapter named
    "Running without the Battery".
    It works.
    Regards,
    Johann
    ReplyDelete
  2. Johann, thank you for your comment. (And are you the Johann who tracked down the drawing of the new Bullet? Thank you for that too). The link you provide is a fun one with lots of tips from Bullet guru Nandan in India. No doubting anything he says. But my knowledge of electricity is limited to putting batteries in the flashlight. My Bullet doesn't have an "emergency" position for the key and Bullet electrical systems vary across the years, so I wouldn't try this myself.
    ReplyDelete
  3. my amp needle wont move also no spark could my kill switch be bad
    ReplyDelete
  4. Anonymous, if the amp needle doesn't move when you swing the kickstart lever with the ignition and kill switch on then, yes, you have a bad connection somewhere (or a completely dead battery). The kill switch itself is a suspect, but so is the rest of the electrical system. The problem may be as simple as a loose connector somewhere. One thing that worked for me: follow the ground wire of the battery to where it connects to the frame just behind the battery box. Remove it and make sure there is no paint or rust preventing good contact here; put it back on tight. Good luck.
    ReplyDelete
  5. A lot of interesting information here. I am dealing with 2006 Electra. Was running with weak spark before I changed out the exhaust, and now there is no spark.
    I was sure if I was dealing with point ignition, but this has cleared everything up for me. I will attempt to rattle the wiring as well, and check the ground connection as well.

    This isn't my first rodeo...it's my second, but this feels like a good introduction in to the world of British motorcycles: Shake here, jump this to that, now the lights don't work, flail your arms and do a quarter turn in the air while jumping...

    ~Take It Easy~
    ReplyDelete
  6. Hey David,

    Been running my 03 Bullet 500 without issues. yesterday i turned the key on and nothing happened. No pilot lights, horn, nothing. It has a brand new battery only a few weeks old and It ran fine just a few days before. Any ideas?
    ReplyDelete
  7. The fact that you have a new battery suggests that maybe its connection wasn't put on tight enough, or it has loosened. Check the cleanliness/tightness of the connection to the frame behind the battery. It may have shifted just a bit and any bit of paint or rust here can cut the circuit.
    ReplyDelete
  8. My bullet runs fine when I can get it started - it starts - eventually - when cool and when warm runs beautifully but when hot (when i stall it) I can't start it at all and it cuts out at tickover. Any ideas
    ReplyDelete

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