Question about 2006 Yamaha SR 400

1 Answer

Yamaha SR400, Hot starting and fuel overflow

I recently purchased and started riding a 2006 Yamaha SR400. I am trying to work out the bikes character and have found that she doesn't like to start when very hot i.e right after filling up at the gas station. I have read some articles on the net about SR's that refer to a "hot-start" button on the carburetor. The 2006 model doesn't seem to have one. Is there some other trick for these hot-start situations...the otherday I had to run and clutch start it in3rd which was not too hard, but i dont want to have to do that every time I fill up. I am aware of the kick indicator and use it always when starting.

Also when idling, fuel/gas drips from the overflow and also when kicking to do a hot start. Is this normal?

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert who has written 7 tips or uploaded 3 video tips

  • Master
  • 642 Answers

Fuel dripping when idling indicates a worn needle/seat combination in the carbuerettor. Repair requires replacement. Might also be the cause of your hot start problem since the engine floods when fuel pushes up too high in the float chamber. Try turning the fuel valve to the "off" position as soon as you stop after riding. It may prevent excess fuel entering the carbs and so curb flooding.

Posted on May 30, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
New users get 2 Free calls (no credit card required) and instant help on almost anything you can think of (from cars to computers, appliances, handyman, and even pets).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Yamaha blaster 2001

No fuel or no spark. Quick test: spray some starter fluid into air intake and try to start it. If it runs and then dies, you've got spark but no fuel. If the bike quit with no prior symptoms, check spark plug wire not knocked loose, fuel filter clogged. (You do have gas, right?)

May 20, 2014 | Sport & Outdoor - Others

1 Answer

My Yamaha YBR 125 2007 not starting, it been standing for 2 years

the fuel pump is most likely seized from setting too long. fuel injectors could be clogged as well.

Apr 12, 2014 | 2007 Yamaha Ybr 125

1 Answer

Yamaha Fazer 150CC-Problem in Start and acceleration

Hi, Additya and the usual suspects are:
1. Throttle cables misaligned or misrouted.
2. Damaged or restricted fuel tank venting system.
3. Intake system air leak.
4. Vacuum piston malfunction.
5. Pinholes or torn diaphragm.
6. Accelerator pump leaking or no output.
7. Plugged bowl vent or overflow.
8. Fuel level in bowl too low.
9. Restricted fuel supply passages.
10. Plugged jets or passages.
11. Worn or damaged needle or needle jet.
12. The enrichner valve not seated or leaking.
For more information about your issue and valuable "FREE" downloads that you will need please click on the blue links below. Good luck and have a wonderful day.
Common Problems with Bikes and Their Solutions
Life On 2 Wheels
Yamaha Fazer Service Manual
OEM parts for Yamaha
Yamaha Owner Manuals

Jun 29, 2012 | Yamaha FZ6 Fazer Motorcycles

1 Answer

Trouble starting

Hi, Josh and the usual suspects are:
1. Enrichner system plugged, not properly functioning or improperly operated.
2. Fuel overflow.
3. Restricted fuel supply.
4. Gas cap and or fuel tank not venting properly.
5. Plugged slow jet or passages.
6. Inlet system air leak.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Very hard starting cold engine Yamaha Star Forum
2008 Yamaha Star 650 Cold Start 75 Degrees
98 00 Yamaha XV650 Star Service Manual XVS650 Moto Data Project
OEM parts for Yamaha

Jun 02, 2012 | 2000 Yamaha V Star Classic

1 Answer

2006 yamaha r6 wont idle when its cold

Hi, Anonymous and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
07 r6 rough idle then stalls on cold start
2006 Yamaha YZF R6 Service Manual R6 Moto Data Project
OEM parts for Yamaha

Feb 15, 2012 | 2006 Yamaha YZF-R6

1 Answer

Yamaha sr 400 service manual

Hi, Anonymous the vast majority of service, parts, and owners manuals on the internet are "FREE" to download and all service manuals contain wiring diagrams in the back pages. The rest usually charge a modest fee around $10 sometimes more and there is a handful of obscure, rare, obsolete, and very old models that are no longer or never were available, then there is eBay where you may be able to find what you need at a very high price because of its age and rarity. Most of the "FREE" manuals will cover your exact make, model, and year otherwise one will be provided that comes as close as possible to your bike and will have most of the same info that an exact manual would have.
To download your manual please click on the blue links below. Good luck and have a wonderful day.
Yamaha 2014 2015 SR400 SR 400 Motorcycle Service Manual Download Manuals... $16
OEM parts for Yamaha
2016 Yamaha SR400 Owner Manual
Yamaha SR400 2011
Yamaha SR400 SR500

Jan 11, 2012 | 2011 Yamaha SR400

1 Answer

My 2006 yamaha xt225 runs well when I get it going. There is trouble starting it, and I finally figured out to open overflow hose at the bottom of the carb. Bike will not start unless I do this. Please...

you should only have to burp it once..there's air getting into your fuel system and keeping it from flowing .do you shut off fuel when not in use..if so try not once and see if that helps but sounds like a complete fuel system cleanse is what may be next..

Nov 27, 2011 | Yamaha XT 225 Motorcycles

1 Answer

I recently purchased a 2006 suzuki boulevard and it just started to make a strange intermitted "crying / moaning like cat" sound when it is just parked -not running. What could that be??

My bike makes a noise like that especially after a ride , on mine its the fuel vapour either escaping or drawing air in from the fuel cap seal

May 26, 2011 | Suzuki Boulevard C50 Motorcycles

1 Answer

Hot start SR400

I'm sorry, I am not familiar with this condition ... I have not experienced it with a motorcycle. I am familiar with "vapor lock" in cars ... this problem is mostly solved in modern cars.

Vapor lock was a condition where the fuel vaproized in the fuel pump and made it impossible for the pump to deliver fuel to the carb. This condition always presented itself on a hot Saturday afternoon while the family was out for a drive. Ironically, we were out for a drive to cool off! (In the days before AC) Dad would stop to get gas and the heat in the engine compartment would cook the fuel in the pump causing the dreaded 'vapor lock'. The fix was to cool the fuel pump. One very popular way was to slice a grape fruit in 1/2 and put it on the fuel pump. The juice would evaporate and condense the fuel and the pump could then pump again. Today, most fuel pumps are in the fuel tank and rarely get hot in the trasitional sense.

I would be very interested in learning more about this problem and its solution. When you find it out, please post it on this thread.

I dont understand 'holona1's solution. Maybe there is an answer in the response - I didn't get it. I am not degrading holona1's response, just saying I don't understand it.

I know there is a Yamaha Rider Club at Being a Honda owner, I am a member at the Honda Rider Club. If the Yamaha club is like the Honda club ... what a rich source of information. You may want to poke around over there to see what you can see.

A few random thoughts in no particular order ... you could fill your bike at home before you go on a ride ... I don't know where you live ... though dangerous, you could fill the tank with the engine running ... though I don't recommend this except in the extremest of emergencies ... most motorcycles can go about 100 miles on a tank of gas ... I dont know about you ... my rear end has about 100 miles of endurance and it is time for a break!!! Maybe you should take a break at 75 or so miles (on longer rides) fill the tank and fill your tummy at the same time ... maybe smell some roses along the way.

I'm sorry you are having this trouble ... did the previous owner have any words on how he or she addressed the problem? What about the Yamaha shop? Jump starting is not a glamorous solution though effective most of the time. Itis better to eliminate the problem.

Ride safe ... and thanks for your interest in

May 30, 2010 | 2006 Yamaha SR 400

2 Answers

2005 yamaha r6 want start. New plugs,replaced all

go to Autozone but can of Sea foam $10 pour in 1/3 can to 2 gal fuel.. clean fuel filter or just buy a new one, your choice, empty out fuel filter and fill it up with some see foam and if you have trouble getting it started..well push start the damn thing, and if it starts and is running like ****... just do whatever it takes to keep it running and ride an ride hard at times if you have to and see if this stuff will clean out you fuel injector carbs or worked with my bike afyer 11 miles. feedback appreciated!

May 06, 2010 | 2000 Yamaha YZF-R6

Not finding what you are looking for?
2006 Yamaha SR 400 Logo

339 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts


Level 2 Expert

281 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1144 Answers


Level 3 Expert

2600 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides