Question about 2008 Highland 450 Mx

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Starting problem How come my bike starts just for a few seconds then it stops even though my gas tank is full?

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Try changing the air and fuel filters; spark plug(s) as well.

Posted on Nov 10, 2008

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I can start my bike up, with full choke on, but after a few minutes it will die. Also, whenever I give it gas with the throttle, it immediately dies.

Something has to be fubar with the main jet circuit of carb. That explains why it starts and then shortly thereafter shuts down. Also explains why when you give it gas it cuts out cold.

U have ignition but NO engine will run without proper fuel flow.

Jul 31, 2015 | 1995 Triumph Triumph Thunderbird

1 Answer

I bought a 1984 kawasaki 550cc ran when test drove. I paid someone with a truck to haul bike shifted a little but never tipped. Now won't start. Any suggestions why.

Due to the age of the bike I'm wager it is a fuel problem. If the gas in the tank is more than a month old it has become stale. If so then dump it and refill (half to three quarters full) with fresh gas. Add a bottle of STP Super Concentrate Fuel Injection cleaner (also good for carbs) OR Berryman's Chemtool in the tank and crank it over a good bit (though never use an electric starter for more than 10 seconds at a stretch, you must let it cool a bit at least 15 seconds before trying again). You want the mixture to get into carb (if so equipped) or the fuel system and allow it to sit overnight or one whole day.

Also if the bike was allowed to lay on it's side, oil may have contaminated the spark plug tip and it can't fire. Remove the plug and see if it is clean and dry. Make it so if it isn't. Carb cleaner spray can remove oil from it, allow it to dry and reinstall (don't over-tighten it).

Try starting it up again.

Aug 16, 2014 | Motorcycles

1 Answer

2001 yamaha v sta 650 ran out of gas. And wont start back


I know that quite a few of the V-Star's have an issue with fuel that has Ethanol additives. What happens when the bike sits, even for as little as two weeks, the fuel start to "gunk" up in the carbs. If you had any trash in your tank, you could of clogged the fuel filter.

Something you can try, without a lot of diagnostic testing, is to add SeaFoam to the gas tank. Use the recommend amount of SeaFoam for the amount of gas it takes to fill it up (I believe it's about 4 gallons or a bit more). Also add 1/4 ounce of carb cleaner (B-12 works great).

Before doing any of the above, I recommend that you check the fuel filter, fuel lines, fuel on/off valve and remove the carb bowls to check for any trash or gunk.

Now you can try starting it again, but put a trickle charger on the battery to help keep the battery up while starting. Start out with the Choke at full and try to start it for a few minutes. If it starts, let it idle for 10 - 15 minutes to allow the additives time to run through and clean the fuel system. Make sure not to run the battery completely down.

If it still won't start, pull a fuel line off a carb and try to start it. If you are getting fuel through the line, it's, more than likely, not the fuel system and could be electrical. Although I've never heard of an electrical issue when running any bike out of gas.

One other thing... try starting it with the fuel on/off valve in the RES (Reserve) position.

This may sound silly, but check the Run Switch to make sure that it didn't get knocked out of place - even slightly.

I've been racking my brain since your question appeared over 3 hours ago. I hope the information that I have given you, will give you enough of a starting point that you can figure out the problem.

If you find this information useful, please vote. Thank you.



NOTE: I have done this, but I do NOT recommend it. Do this at your own risk. Get a spray can of starting fluid, find your air cleaner and give it a quick shot. Back away from your bike and try starting it. It will either start, or pop and backfire. If it didn't start, try one more quick shot, again backing away from the bike while trying to start it. Once the bike starts, and you have added the above chemicals, you shouldn't have any trouble starting your bike again. One more thing, if you use low octane fuel it will have Ethanol in it... use the SeaFoam every other full tank. Only use the B-12 once. If your bike is going to sit for an extended period of time, get a bottle of Sta-bil and add the recommended amount to the gas tank. Run it for a bit, shut it off, and shut off the fuel valve.

Jan 10, 2011 | Yamaha XJ 650 Motorcycles

1 Answer

Heavy gas smell but no apparent leeks, when starting the bike does not turn over the first time and the clock zero's out then starts on the second push of the button.

Fuel tank on your bike is vented to the atmosphere, and especially when the tank is full it is commom to smell gas.

If the clock zeroes on starting, your battery is weak. Check the battery terminal connections by removing the rider seat and looking in at the battery. Try to wiggle the wires connected to the battery and make sure the connections are tight.

Next, put a small charger on the battery and let it charge up for several hours.

If clock still resets on starting, you will need to replace the battery on your bike.

Good Luck

Sep 12, 2010 | 2004 BMW R 1150 RT (ABS)

1 Answer

Bike did not run for a few months , and now when I am starting engine runs and then stops after a minute or two.any help? bad fuel?

This sounds like a typical case of gas going bad and possible rust in your gas tank. Best to drain ALL gas from your tank - if you can easily remove it - take off the petcock and rinse the tank with fresh gas - look for any flakes of rust in the gas you drain out. Once you have the tank fully flushed - clean or replace your fuel filter and I would suspect that it will run just fine.
If you are not going to ride for an extended time frame - add Fuel Stabilizer" to the tank before putting it up. This is available at your local auto parts store. You will thank yourself for taking this precaution.

Jul 29, 2010 | 2007 Yamaha Road Star

3 Answers

I have a 1996 gsxr 750 it has spark and wont start

try some aero start, starting spray, it may help work out what may be wrong.
Try a compression test
drain the carby bowls.though the little drain screws
Did it stop for any reason or it just wont start after it has sat for a time.?
What have you tried?

Apr 24, 2010 | 1986 Suzuki GSX-R 750 G

1 Answer

96 gsxr 750 gas in crankcase.

You have a float sticking and your fuel pump is runing when it need not, . You have a bad carb float

Jul 19, 2009 | 1994 Suzuki GSX-R 750 WR

1 Answer

2007 street bob stalling at when idling

If it does it only when the tank is stating to get low, you have a hole in the fuel line, which should be covered under warranty. listen to the tank when the level is low. If it sounds like water being sprayed in the tank, then more than likely that's your problem, The problem won't generally present itself when the tank is full, because the gas helps cover the hole in the line keeping the pressure higher than when it's low on fuel.

Jun 08, 2009 | 2006 Harley Davidson FXDBI Street Bob

1 Answer

Starter problem

try changing the air and fuel filters; spark plug(s) as well.

Nov 10, 2008 | 2005 Kymco Hipster 125

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