Bandit Alley
MODEL SPECIFIC => SUZUKI BANDIT 250 & 400 => Topic started by: kako on October 14, 2007, 01:53:48 PM
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soooo... ii got my little bike home but used a truck to get it there. the boys at the bike shop told me it wasn't running to well... i just think the carbs need adjustments. but its weird. my bike will only run with choke on. and when i turn it off the right side pipe (i have twin pipes) has a little smoke come out.. and smells weird.. but the other smells fine and no smoke.. i thought there was a carb tuning sticky.. but i couldn't find it. and do i need to take my tank off to tune the carbs? oh... and how do you tune the carbs... i only have experience on rc cars
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sounds like you need to clean the carbs maybe put carb kits in them maybe a fuel filter sounds like the pilot jets are clogged or your plugs are fouled?
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maybe you need to read this one?
carb info (http://forums.banditalley.net/viewtopic.php?t=9697)
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welll... i think its might be some tuneing because this bike when from 340 feet above sea level to. 3400 feet above.. would that make a difference... also.. were are the spark plugs? i cant find them... im use to a small block chevy.. ps to i have to pull the gas tank to tune the carbs?
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it also went from high humidity to relatively low
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gas tank and air box what a nice air box it is , plugs are on the head near the two big black water hoses that go into the head
cheers
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Plugs are in the top of the valve cover, inside wells.
The altitude change isn't a major one, but it can contribute to the bike wanting to run a little leaner.
Try to ID what the smoke is. You can usually tell by smell if it's gas, oil or coolant. You can also tell by color. Coolant will usually be white and smell a little sweet if there's anti-freeze in it. Oil will be blue and smell like oil, gas will be grey to black and if it's not stale, smell like gas. If the gas is old, it'll smell really bad.
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k i will be sure to read all of that. i went out and started it. (it starts really really easy) and the smell is always theres.. even when bike is turned off... it kinda smells like my car.. which i think has a bad catalytic converter..its sour almost. my car is also running a little rich. also it idles around 1000-2000 rpm. and has a lumpy idle.. much like my car(lumpy cam with 500 rpm idle.) also we just put in fresh gas.. because thats what we thought was. but im not 100% sure how fresh because it might have been off my dads quad. isnt the tank really heavy with a full tank of gas? which is the pilot jet? i will try and turn that in.. because thats what the old owner said i might need to turn it in, its at 2 turns out right now.
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the 73 does have a cat on it where it conects from the 4into 1 then goes to 2 but i doubt its that fuels screw its been a minute but i think they are on the bottom of the carbs some one here will say if im right or wrong. pilot jet is the small on next to the main jet in the float bowl. Best to pull the plugs and se what they look like first before you adjust things but again it starts fine on chole but once you shut choke off it dies?
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ya. i have been reading more.. and a different forum said rich= black smoke and smells like gas... and lean= smells sour/bad... and burns the eye.. and i till you... after that last smell test.. they burn.. but i will check the plugs for white when i take the tank off tomorrow... sooo jay. how hard is it tp gut this cat? umm is there a good way to take the tank off?? plus mines fullll of fuel..
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not hard when i had that exhaust i cut it open twice once to gut it and once to put a channel back in it takes a lot of weight out to that pipe weighs something like 40 pounds with two carbon cans i had. Its a boat anchor, as for the tanks take the seat off unbolt the one bolt that holds the tanks and take the fuel line off the fuel valve and then take the vent hose off the fuel valve and lift the tanks off real easy
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k well got everything apart.. and tuned around with those screws bottom on the carbs... they were 4-5 turns out... hmmm. doesnt seem right.. so i turned them 2 out... but i wanted to start it up tonight.. but f bomb.. the air box is being a homo and wont go back on... any tips jay? ps will post pics of plug soon.. but as a teaser.. it wasnt running lean... :duh:
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no mate sorry mine came with pods i hear its a bitch , and i had got one to try with my flatslides but that is next year may want to try www.400greybike.co.uk for the answer on the air box tips. on the other hand 4 turns out is a lot and let me know if you have any more issues and cant wait to see the plugs i suspect the usual carb oring issues float needle problem that come with these carbs must be something in the fuel anymore that is eating these orings
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(http://img81.imageshack.us/img81/9044/img3825xh1.jpg)
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put some lube on the rubbers before you try fitting it vaseline or similar.
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:shock: what mains are in it where is the needle set at ? buy cr8 or 9 e's till you get the carbs straightened out will save you some money while tunning. You may have oring/ float needle problems though.
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oops... now she wont start tho.. like it trys to but it just cant. weres the middle hose that comes from the center of the tank go? likes its almost like shes not getting enough fuel...ps.. the air box wasnt fitted perfect.. so i will try doing that first.
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Its not gonna start with them plugs :stickpoke:
Hose routes to the bottom of the bike, its just a vent, i take them off because if they get pinched they dont allow fuel :shock:
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no faith jay? hahah she did start.. i think i just needed to prime the carbs.. because the bowls were on empty... but it turn it 3 out... because i thought i turned them to far in for some reason.. lol.. anyways i have tomorrow to work on it.. i think it might post a sound clip just for a treat for everyones help
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cool
:congrats: :motorsmile:
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is there a proper way to prime the carbs?? other then sucking on the vacuum tube? how you know when the bowls are full? can you prime to much?
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You may have to remove a small screw from the face of the fuel tap to get it there but straight up is the prime position (someone correct me if I'm wrong, it's been a while since I looked at my old B4). If the carbs were dry, I'd just leave it there for a few minutes and then fire her up. If your floats aren't set right or you have some bad o-rings, leaving it there too long will result in fuel getting past the carbs and into the motor.
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hmm.. the bike is still running like poop on a stick... im kinda out of ideas... like i had it started at 2 turns out and it was rich.. and i now have it a 1.5 turns and it wont think about starting.. but it sounds like there is no explosions... so maybe the plugs are totally gone now..
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well i think im going to rebuilt the carbs because i think they are all gummed up.. so im going to canadain tire tomorrow... what should i put on my shopping list?
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if you dont know about the orings its a good starting point
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oh i know about them... can i get them localy? or is it just easier to buy them from you if you have them? poo i left my o ring grease at home to.. hmm that sucks.. well im going to the store in 10 mins so i think im just going to get the carb spray and something to make a bath for the carbs.
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ps o rings were replaced last winter... k update... the carb cleaner worked when i cleaned the pilot jets out... but its still running rich at 1 1/2 turns out... does this seem weird to anyone
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rich as in what the bottom or the top? plugs black already?
maybe you need new float needles? well carb kit capital used to sell them but they seem a bit out of them and cant find them on the web anymore so let me know if you need any and i'll see what i can do.
cheers
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bottom end... top end guns great,..
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fuel screw orings, float needles, you have b4 carbs instead of gsxr carbs and are missing the pilot plugs? hard to say why a number of things it could be, emulsion tubes, maybe someone put bigger pilots in, etc..
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whats the diff between bandit and gsxr carb... hmm i thought they were the same.. oops.. im thinking of just rebuilding them and wipe out everything.. cuz right now i just want my bike to run.. and its really getting to me. so what should be on my shopping list and how much does it cost...lol. thanks for all the help jay so far.
Kev
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carb kits , look at your needles, look at the emulsion tubes , all those interchange same with float needles , float assemblies. the carb bodies are different they dont need the rubber plugs on the pilot circuit like the bandits they feed separate
if you have a rich problem easy enough buy some for a bandit and insert them in the whole it will either run or not if it doesn't run it cost you a bit of time and like $10.00 but if it fixes it great . check your coils and caps easy enough lift the tank up and run it spray water at the coil wires and caps you have a light show you need new ones, or you can test the caps as per the manual lol