01 yz426f acts like its not getting fuel after about 30 kicks it will fire for about 5sec then dies used some starting fluid same thing so i took off the air box to look inside the carb held it wide open and kickit no gas came through it ran fine a week ago when i parked it sat in my garage wouldent start after that granted its about 25degrees f outside and there was also water in my gas! any help would be awsome

SOURCE: I can't get my fzr 600 to start...

hey m8,, does the petrol pump work,, and fuel in the carbs,
make sure u have fuel gettin to the carbs,,pull off the fuel line on the carb, and a quick on and off of the ignition, see if fuel pours out the fuel line 1st,,if thats all cool,, then check u havent got a air leak ,in the air box,, check the jubilee clips on the carbs holdin the air box on are sealing and tight,, ,if thats cool, check and clean your plugs,, take a plug out and put in its cap again ,lay on top the motor and turn the engine over, check if its sparkin nice,, if all that is good ,, this happens a lot if been mest with,, but have u had the coil leads off b4,, if so u may have the wires on the wrong coils,, as u r sat on the bike, from left to right should be 1,3,4,2,,left coil 4 plugs 1 and 4,, right coil 4 2, and 3,,

SOURCE: carb puking gas

yep fuel problem are you using hi octane /pinging noise is springs

SOURCE: Vstar 650 classic. only will idle.

hello and welcome
this is a very very commom problem after the cycle has gone over a storage period of anything over a month or so. what has happened is the deteriorated fuel has plugged the idle jet, and possibley other jetting. this is verified by pulling out the choke allows it to run. because this makes of for the loss of fuel the jets are not produceing. so to fix this you will need to remove the carbs and take out the jets and clean them thoroughly with a carb cleaner and possibly a very small gauge wire to break up builup. especially in the pilot jet. unfortunately fuel added carb cleaners dont seem to work for this kind of problem and to fix right they should be disassembled and cleaned thoroughly. thank you.

SOURCE: 1989 tw200 yamaha won't start

G'day egdbcs . Ok.now lets see.You say good spark,so i'm presuming you are doing the old sight test.Try bending the arm on a know good sparkplug about 5-6mm,earth the plug and kick'er in the guts(crank it over)Be very carefull , high voltage danger.If there's still a good spark it's safe to say that there will also be a good spark under pressure in the combustion chamber,speaking of which you should also do a compression test,anything over 100psi should be ok. as i'm not to sure of the extent of the re-build,hopefully the valves were lapped and checked for straight and true and valve seals replaced,if you notice oil on the tip of the spark plug you could have a leaking valve seal or oil seal .Try putting a small amount of fuel directly into the combustion chamber ,tighten up the spark plug ,install the plug cap and.......Yeah ..You guessed it ..."kicker in the guts".If all the abouve are correct and true it should fire up.If it runs for 5-10 seconds then stops you've got some sort of fuel starvation problem , could be dirt in the carb,blocked idle jet ,or air passage or even the needle could have come off it's clip,believe me with an old bike like yours anything could be worn and loose inside that carby.The only other thing to consider is the timing.There may be a good spark but is it happening at the right time inside the engine???. I'll leave it all in your capable hands EGDBCS.Hope this helps to solving your worries. Chow for now......Tilleydog..

SOURCE: 2007 yamaha virago won't start - replaced spark

it's not that your not gettin gas it's that the gas is not getting thru the carbs to the engine. your bike will probably start w/choke on and then die, your jets are clogged and happens to most bikes that are stored w/gas in the carbs.,,,clean them if you know how or take it to a trusted mech...good luck to you...Tim