Question about 2006 Yamaha V Star 1100 Custom

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Yamaha V-Star 1100 backfires and will not run without choke on

I did not winterize my V-Star 1100. Now the bike continually backfires and will only run with the choke fully on. I've put in fresh gas and added carburetor cleaner. When the choke is move a quarter way off the bike shuts down. I want to get it to run so I can ride it to the shop for expert repair.

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Here are two solutions for you:
A - Take the carberator off and soak it in some good quality carb cleaner for about 1/2 an hour.  That should take care of any residue in the carbs.
B - Alternatively (and for the less technical minded) there is a great product called Sea Foam.  Try to find it at your local CSK auto/NAPA/Wal-Mart.  Pour a small amount (maybe 1/4 ounce) into each cylinder chamber (take out the spark plugs), try to pour a small amount into the carbs (a turkey baster works great for this), and pour the rest into the gas tank.  Let it sit for 5-10 minutes, then start it up.  *NOTE - the bike will start VERY hard at first until it burns through what's in the cylinders.  ALSO the fumes will be EXTREMELY strong and suffocating - make sure you do this OUTDOORS preferably, or at least in a VERY well ventilated area.
Good luck - I know how frustrating these things can be! :)
P.S. - I am a proud owner of a V-Star 1300 - great bikes! :)

Posted on May 26, 2009

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You should do a carb clean. The carb should be removed from the bike and completely disassembled and dipped in carb cleaner. What I think works best for cleaning carb is Yamaha's Carb Dip I mix it 50/50 with warm water. All the rubber parts must be removed as they will be swell and be damaged by the dip. After you dip the carb it will need the all passages verified with spray carb clean to make sure the fluid will make it through the intended passage. Or run it on the ckoke to the repair shop

Posted on May 26, 2009

  • George
    George Dec 14, 2013

    where is the choke located on this bike?

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1 Answer

2000 Yamaha V Star 1100 Custom hard starting


Hi, Blair and the usual suspects are:
1. Enrichner system plugged, not properly functioning or improperly operated.
2. Fuel overflow line pinched or clogged.
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 blue links below. Good luck and have a wonderful day.
http://www.starbikeforums.com/forums/49-v-star/839-2000-vstar-1100-custom-hard-start.html
https://sites.google.com/site/vstar1100kb/home/new-owner-must-do-list/using-the-choke
http://www.sloneservices.com/SilverBack/Other-Stuff/V-StarShopManual99-07.pdf
OEM parts for Yamaha
YAMAHA XVS1100 Owner Manual

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

Apr 21, 2017 | 2000 Yamaha V Star 1100 Custom

1 Answer

My bike sat in the garage over the winter and now can't get it to run. It will turn over and start with the choke at full, but when I try to give it some more gas it putters out? Thinking the...


Sounds like the carb(s) are gummed up and have clogged passages. A thorough cleaning should solve your problem. Note: don't use steel objects to clean the jets since they will enlarge them and will only end up compounding the problem. I've had success with wood and copper wire.

Jun 24, 2011 | 2007 Yamaha V Star 1100 Custom

1 Answer

I've got a 2001 Yamaha V Star 1100 Classic that I thought I prepared well for the winter. I added fuel stabilizer to a full tank last last fall. I got one small but issue free ride yesterday, but today...


Some times the fuel stabilizer can make it back fire so constantly top up your tank until you run all the old mix gas thru just keep diluting the fuel with fresh stuff, also be sure to use only high test fuel and mabe check your plugs out as well for fouling those are the cheapest ideas you can try for now!

May 02, 2011 | 2001 Yamaha V Star 1100 Classic

1 Answer

Starts but takes a very long time to warm up. continually stalls when throttle applied. have to keep feathering throttle to keep running . spits ,sputters , backfires until fully warmed up


ColdI engines require a richer mixture to operate smoothly...so they have an enricher (aka choke).
If you are finding you need to keep the choke on longer.....you may have a lean mixture than normal.nother
Start by inspecting the carb and intake manifolds for any leaks (loose fittings....cracked hoses) that could be drawing in air, leaning the mixture.

Another common issue with bikes that have sat over winter...is plugged idle jets.....the fuel varnishes the tiny orifices in the carb. You could try a product like Seafoam in the fuel tank....run it abit to get the treated fuel in the carbs then let it sit overnight...allowing time for the chemical to work. Since the bike runs fine warm...this may clear things up for you.

Apr 05, 2011 | 2000 Yamaha V Star 1100 Classic

1 Answer

I have a 2000 Yamaha 650 Vstar with 3300 miles on it, we put new Vance&Hine pipes on it an had it rejetted, last year we didnt ride it very much, mostly sat in the garage, wnet to put it away an it...


This is a very common problem fpr bike that sit over then winter and/or rainy seasons. From sitting too long, the old fuel in your carb bowls have plugged up (varnished) your pilot jets and probably you idle fuel mixture screws too. Luckily your carb bowls and jets can be access without having to remove the carbs. For about $4 each, sometimes it's easier to just replace the pilot jets. If any of this is foreign to you, have a shop do it. And don't let them get away with quoting your the same charge to do the work as a V-Star 1100. The procedures are completely defferent and alot more extensive on the 1100.

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1 Answer

Bike sits a lot,Hard to start, will only continue to run with choke on. Bike backfires alot.


You need to clean your carburetors. The ethanol that is in gasoline turns to an orange colored film
and it clogs the jets. The prevention for this seems to be seafoam added to your gasoline after your carbs are clean.
It does work. If your bike sits a lot, i would also suggest that you start it up weekly and let it warm up. Sitting is the worse thing for gasoline.
Judging from your description and other problems, the backfire is probably bad gas not burning and igniting in the cylinder when overloaded with gas.
A good carb cleaning, consists of taking the carbs off the bike, taking out all the jets and soaking everything in a good carb solution.
I would start with the carb cleaning, drain the old gas out of the tank, start with fresh 93 octane and add the recommended dose of seafoam listed on the back of the botlle to your gasoline.
Put a set of new spark plugs in it, and fire it up.
Your back fire should be gone as well.

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2 Answers

Vstar 1100 idling rough and backfiring letting off the throttle


It sounds to me that your carbs might be a little gunked up - you mentioned the gas may have been old, so it's possible that the smaller (idle) jets are slightly plugged up. Fresh fuel might do the trick and/or you could try using a fuel system cleaner and water remover. This problem might 'solve itself' with a little time.

As far as the backfire - this might be either from the carb issue or it could be related to that rattle you mentioned - you could have a loose connection at or near the head - this can **** air and cause a backfire.

I hope this helped!

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