exodus125 Posted March 18, 2005 Report Posted March 18, 2005 im trying to get a 1996 honda fourtrax (trx300) started and cant,,, i noticed today that there is a hose attachment on the bottom of the carb with no hose attached to it this nipple is right underneath where the priming nob is. I also found a hose leading to (i think) the gas tank thats not attached that seems to be the same diameter of the nipple, im wondering if this hose goes attached to that nipple at the bottom of the carb an its use to recirculate overflow gas from the carb bowl, am i right? if i prime the nob a bunch of times an try to start it with the choke on a bunch of times an it doenst start, should gas come out of there? cause its not. can anyone verify or correct my suspicions.... Quote
J-Madd Posted March 18, 2005 Report Posted March 18, 2005 im trying to get a 1996 honda fourtrax (trx300) started and cant,,, i noticed today that there is a hose attachment on the bottom of the carb with no hose attached to it this nipple is right underneath where the priming nob is. I also found a hose leading to (i think) the gas tank that seems to be the same diameter of the nipple, im wondering if this hose goes attached to that nipple at the bottom of the carb an its use to recirculate overflow gas from the carb bowl, am i right? if i prime the nob a bunch of times an try to start it with the choke on a bunch of times an it doenst start, should gas come out of there? cause its not. can anyone verify or correct my suspicions.... 340889[/snapback] Does gas come out of this suspicious hose? If not, it probably does not lead to the gas tank. I know 4-stroke carbs have a lot of hoses...I don't know what they are for, other than the overflow hoses. You couldn't re-circulate unused gas "uphill" back into the gas tank (I don't believe). But I'm definitely not a 4-stroke carb expert. The exposed nipple could simply be an overflow hose. Quote
exodus125 Posted March 18, 2005 Author Report Posted March 18, 2005 Does gas come out of this suspicious hose? If not, it probably does not lead to the gas tank. I know 4-stroke carbs have a lot of hoses...I don't know what they are for, other than the overflow hoses. You couldn't re-circulate unused gas "uphill" back into the gas tank (I don't believe). But I'm definitely not a 4-stroke carb expert. The exposed nipple could simply be an overflow hose. 340897[/snapback] ok. lets say the exposed nipple is an overflow, shouldnt it overflow if i prime the bulb 20 or 30 times and i try to start the engine with the choke on for a while? cause its not. im not an expert either but i figure with the engine heat the gas in the hose would evaporate an go back in the tank, the hose looks like it should go on there Quote
J-Madd Posted March 18, 2005 Report Posted March 18, 2005 ok. lets say the exposed nipple is an overflow, shouldnt it overflow if i prime the bulb 20 or 30 times and i try to start the engine with the choke on for a while? cause its not. im not an expert either but i figure with the engine heat the gas in the hose would evaporate an go back in the tank, the hose looks like it should go on there 340905[/snapback] Not having any experience with a carburetor that has a primer (besides my weedeater), I'm not sure if that would make it overflow or not. On my banshee, it only comes out the overflows if the floats are stuck, or if it is turned over. And trying to start the engine with the choke on for a while should only flood the cylinders, not let gas come out of the overflow (in most cases). My YFZ has hoses that lead from one part of the carb to the other (either from side to side or top to bottom....don't remember off hand). It couldn't hurt to connect that hose to the nipple and try it. The only hoses coming from gas tanks that I've seen are the fuel line, and the vent line off of the gas cap. Not to say that I've seen them all. I Hope you get it running, man! Quote
exodus125 Posted March 18, 2005 Author Report Posted March 18, 2005 Not having any experience with a carburetor that has a primer (besides my weedeater), I'm not sure if that would make it overflow or not. On my banshee, it only comes out the overflows if the floats are stuck, or if it is turned over. And trying to start the engine with the choke on for a while should only flood the cylinders, not let gas come out of the overflow (in most cases). My YFZ has hoses that lead from one part of the carb to the other (either from side to side or top to bottom....don't remember off hand). It couldn't hurt to connect that hose to the nipple and try it. The only hoses coming from gas tanks that I've seen are the fuel line, and the vent line off of the gas cap. Not to say that I've seen them all. I Hope you get it running, man! 340916[/snapback] thanks, ill know a little better whn i get the repair manual for it an take the carb apart ill make sure to post the fix when i find it Quote
exodus125 Posted March 21, 2005 Author Report Posted March 21, 2005 we took the carb off an cleaned it up the float was seized, then we put it back together and it still dint start, we sprayed some starter fluid in the intake and it backfired, like the timing is off,,,,is there any way of checking the timing on an atv that wont run? im thinking jsut take it to the dealership an pay the 80 bucks they charge to diagnose it.. Quote
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