2009 KX450F Will Not Start - Help!!!

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11/14/2009 5:34 PM

Bought a brand new 450 last week. I have been taking it very easy on the bike over the last week trying to work a good break in period. Took it to a flat trail area here in Ohio and rode with no problems for about 30 minutes. After 30 minutes, the bike cut out. I tried and tried to restart the bike (kick start), both choked and unchoked, let it sit in case I flooded it. NOTHING, and NOTHING. Took it to the local Bike shop... had a fouled Plug (completely black). Replaced the plug, still no fire... will not kick start! So far the shop has no idea what is going on with the bike... less than 1 hour ride time on the engine.

My best bet is that it was running a bit rich with a fouled plug that early on... I have had no problems with backfires what so ever.. and no problems other than this one.

I am thinking its an electrical problem????? Maybe an ECU????

Anybody have any idea what is going on?

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2009 KX450F Monster, 2010 KTM 300 XC

11/15/2009 1:46 PM

you probably didnt flood it.. i bet you pulled the plug out of the cdi somehow. it is more than likely an electrical problem. i wouldnt stress it, plus if yo ujust bought it, bring it back to the shop and ask for help. it doesnt have a warranty, but im sure they can help you troubleshoot it.

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11/16/2009 4:27 AM
Edited Date/Time: 11/16/2009 11:48 AM

One simple thing to check along with all the connectors in the wiring, then disconnect the kill button and check for spark.

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11/16/2009 6:08 AM

If its a new bike take it back to the Kawasaki shop you bought it from. Even though the bike has no warranty the tech line should be able to get er done for ya.

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11/16/2009 6:22 AM

Are you sure its a spark problem and not a fuel problem? Wasn't the 09 450's breaking the fuel pump pickup off in the tank.

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11/16/2009 11:22 AM

Someones fishing. There is no choke on a FI bike.

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well we ain't the smartest folks in the world...i mean we're fucking dirtbike riders for christ sakes.- BobbyM

If you chose not to decide you still have made a chioce.



11/16/2009 12:17 PM
Edited Date/Time: 11/17/2009 5:53 AM

Cygnus wrote:

Someones fishing. There is no choke on a FI bike.

on my 2009 KX450F EFI there IS a choke... however, I'm in Ohio and never use it. One slow kick down all the way and then one hard kick and it starts.

Easiest starting motorcycle I've ever kicked.

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11/16/2009 3:17 PM

Yep you got it... there most definitely IS a choke. The guys down at the shop are tearing her apart to find out what is going on.... so who knows at this point. I have heard some think it is possibly a faulty cut out switch..... we will see

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2009 KX450F Monster, 2010 KTM 300 XC

11/16/2009 3:30 PM

Call it a "cold start" mechanism. Enrichener or choke or otherwise, the KXF definitely had one. It also acts as an idle screw or mixture screw. 42 turns out from the closed position, if my memory serves me correctly.

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The opinions expressed here are possibly not even those of the contributor.

11/16/2009 8:27 PM

You did check to see if you had gas in the tank right?

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Some things are classic, some things are just old.

11/16/2009 9:28 PM

Cygnus....Our 09 kxf450's are EFI and have a choke.

Audi, pull your tank and drain it. Tip it around a bit. If it makes some noise. You broke the fuel pump. Seems to happen when the fuel tank runs low and you take a hard hit. Tank foam is a good investment for the 09's. We Used JB weld on one bike until the new fuel pump came in. I then used fiberglass resin (bondo) and have it as a spare.

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11/17/2009 1:37 AM

Thanks for the help... I will pass the info on to the boys at the shop... they still cant seem to figure it out.

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2009 KX450F Monster, 2010 KTM 300 XC

11/17/2009 5:48 AM

That is crazy. Does it really work like a choke? Or does it squirt a shot of fuel in to help get it going?

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well we ain't the smartest folks in the world...i mean we're fucking dirtbike riders for christ sakes.- BobbyM

If you chose not to decide you still have made a chioce.



11/17/2009 5:54 AM
Edited Date/Time: 11/17/2009 11:27 AM

I never use it. I think all it does is raise the idle. I could be wrong.

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11/17/2009 4:19 PM

OK - PROBLEM IS FIXED FINALLY

This is directly from Kawasaki - And get this one - no warranty - THEY PAID FOR IT IN FULL

Currently it seems that
the concern may be due to a short to the ground in the shift switch. - Confirmed

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2009 KX450F Monster, 2010 KTM 300 XC

11/17/2009 4:20 PM

Oh yeah - and all that "choke" does is temporarily shoot up your idle - I am sure it does more than that, but damn it works great.... starts right up on the third kick every single time - well assuming your shift switch ground is functioning properly.

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2009 KX450F Monster, 2010 KTM 300 XC

11/17/2009 4:56 PM
Edited Date/Time: 11/17/2009 4:56 PM

Glad you got it fixed Audie. Now buy some tank foam.

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11/19/2009 12:51 PM

ITS NOT A CHOKE!!!! SHOW US THE CHOKE BLADE!

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11/19/2009 3:53 PM

glad to hear that it didnt cost you a dime i know the dealers by me would have blamed me for the problem and charge me full labor rate

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11/19/2009 5:03 PM
Edited Date/Time: 11/19/2009 5:03 PM

That is why its a good idea to have a relationship with your local dealer.

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11/19/2009 5:25 PM

lumpy790 wrote:

That is why its a good idea to have a relationship with your local dealer.

The RIGHT local dealer also. A good working relationship is built on trust, loyalty, and faith in said dealer. Sometimes taking years to establish. I have been fortunate to have built a good relationship with my local Yamaha dealer. The only shop to get my business since 1974.

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11/19/2009 6:52 PM

Thumbs up to your dealer for allowing you the benefit of "good will". This will come out of that person's pocket.

It cost him his shop time and labour and lots of headaches, and your dealer is doing this out of good conscience and a head for good business.

Final input...

I said it before. It is a cold start mechanism or fast idle control, but it isn't a choke or an enrichener. It does appear that the adjustment (ie 42 turns out) can have some effect on backfires under certain conditions. I'm told the idle adjustment on an EFI bike is somewhat like air-screw/fuel-screw tweaking but with far less response or effect.

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The opinions expressed here are possibly not even those of the contributor.

11/19/2009 7:56 PM

Thanks for all the help guys.... I will be sure not to call it a "choke" anymore... it will forever be known as the cold start mechanism. Also, thought you might like to know... tonight I bought another god damn bike... a 2010 KTM 300 XC, bought it literally 1 hour after they took it off the damn truck. I think I got the bug pretty bad, now I have a kick ass mXer and a kick ass cross country bike. Anybody getting out to ride this weekend in Ohio??

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2009 KX450F Monster, 2010 KTM 300 XC

11/21/2009 9:22 AM

Audie wrote:

Thanks for all the help guys.... I will be sure not to call it a "choke" anymore... it will forever be known as the cold start mechanism. Also, thought you might like to know... tonight I bought another god damn bike... a 2010 KTM 300 XC, bought it literally 1 hour after they took it off the damn truck. I think I got the bug pretty bad, now I have a kick ass mXer and a kick ass cross country bike. Anybody getting out to ride this weekend in Ohio??

We're racing a harescramble at Big Game Raceway in Hubbard, Ohio on Sunday the 22nd (tomorrow). 10 bucks to get in the gate, 20 bucks for 2010 CRA membership, 20 bucks to enter the race. Big bikes start at 12:30PM.

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Many thanks to everyone helping me out this GNCC season: SRT Offroad, Acerbis, FCR Suspension, O'Neal Racing, Evans Waterless Coolants, Rekluse, Twin Air, Braking Brakes, Carbsport

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12/25/2012 1:55 PM

Cygnus wrote:

Someones fishing. There is no choke on a FI bike.

lotus22 wrote:

on my 2009 KX450F EFI there IS a choke... however, I'm in Ohio and never use it. One slow kick down all the way and then one hard kick and it starts.

Easiest starting motorcycle I've ever kicked.

yes there is BRO its a funny sys

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12/25/2012 2:08 PM

OK THE PUMP ISin side the tank Why Honda did this I Do not know the case comes apart there is 3 O rings in the pump sys

just becuse you got gas its the psi on the sys FI the pump will trick you, been there done it

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12/25/2012 7:02 PM

wassat wtf? you are 3 years late and they were talking about a kawi
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12/26/2012 4:14 AM

heh, I think dude has been late his whole life. He has a few other posts floating around that make about as much sense as this one.

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12/26/2012 11:55 AM

Hopefully he got his 3 year old bike started by now.

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