After reading your initial post again I see it runs fine when cold then drops cylinder as it warms up. Really sounds like a rich condition. Try what MR.Viper and SRX_700 had mentioned about the float sticking.
mrviper700 said:
really sounds like after the engine warm up that cylinder is getting way to ritch for a reason ...like the choke doesnt go off on that carb or needle and seat doesnt work properly like mr viper says or something else in the carb .........running during cold start because engine need more gaz then getting warmer and need less but carb still give it alots for a reason .......i would check that carb again maybe something is not properly set up in it ??what about the pilots screw?
mattysmith440
New member
I am going to take the carbs apart again tomorrow, and check the float for a hole. everything seemed to be in perfect condition, and yes the screens were removed and cleaned. My new pilots should be here by wednesday, so I will try it again then. I dont want to run it to much with the 45's in it and have a meltdown, its upwards of -30 celcius here
when ya do it what mr viper was saying is check the fuel level in the carbs. make sure it isnt too high in that carb. from a faulty seat etc. ive done it on a fz750 i used to own. connect a clear hose to the carb drain screw vent on bottem of carb. open up the screw to let the vent drain into the hose, zip tie to to carb body and however high fuel rises should be the fuel level in the carb bowl do it too all three. that will let ya know right away if the fuel level is too high in that paticular carb. just a lil diagnostic trick for fuel levels i learned a while back.
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mattysmith440 said:
umm...... 45 pilots are richer then 40's are so your going to have less chance of a burndown with 45's(richer) then with 40's (leaner).
most times people put larger pilots in when you have aggressive clutching as a motor needs more fuel to be accelerated harder, so "richer" it needs to be. You only have so much adjustment with the fuel screw till you need to go to a larger pilot jet. The 98,99,2000,2002 srx's all used a 42.5 pilot, the 2001 was the only year to use a 40 pilot and most often, i always go to the larger 42.5 pilot. With a good and aggressive heel clicker clutch set up, 45's are often used.The richer the mixture, better the engine will run from a drag race take off, the richer mixture allows the engine to be loaded very hard.
mattysmith440
New member
hey andrew thats a neat little trick! definatley gonna try that today. And mrviper700, I was told that 45 pilots would be ideal at sea level and plus 20 degrees celcius, and that it would melt the front of my pistons at my altitude (1700ft) and our cold temps? so that is opposite I take it?
My clutch setup is 8dn-20, 4.5g in tip and 4.5 in heel, YWY, secondary is green spring witch hauck 49/41 helix with a 70 twist. and 8 tooth drivers with 1.75 track
My clutch setup is 8dn-20, 4.5g in tip and 4.5 in heel, YWY, secondary is green spring witch hauck 49/41 helix with a 70 twist. and 8 tooth drivers with 1.75 track
bigger u go in number more fuel u put .....smaller pilot number=leaner
mattysmith440
New member
Hey all thanks for the replies. I think I have it figured out. took the carbs apart and the pilot in the number one carb was blocked solid. Thus not leting that carb get fuel at idle. But another weird thing is that the screens are all clean, so how is this dirt getting in there? all 3 carbs were dirty again, and i just cleaned them a few days ago. On another note, I took the gas tank off and it was FILTHY. Filter was brown, and full of crud, bottom of tank is full of crud. Drained it, now just waiting until tomorrow to get some fresh gas to clean it out, and a new filter of course. What a pain in my a$$!! Hopefully this should solve my problems
mod-it
Member
There you go, fuel in tank was bad, so when you cleaned the pilots out they just plugged again. They plug pretty easily.
Just like when I pulled my sled out of storage yesterday...started on the 8th pull and idled good for about 10 seconds, then dropped a cylinder, then died completely and wouldn't start. Most of the fuel in the bowl had evaporated over the summer leaving "crud", then I pull the rope a few times and fill the bowl with fuel, just imagine all the "floaties" swirling around in the fuel. It doesn't take long to plug those tiny pilots up. I usually get away with it running long enough to ride onto the trailer so I can take it to the heated shop where I pull the carbs, but not this year. Had to drag it on and off the trailer. When I pulled the carbs all three pilots were plugged, plus one of the mains partially blocked.
You may have some of that bad fuel still in the lines and end up having to do the carbs one more time...
Just like when I pulled my sled out of storage yesterday...started on the 8th pull and idled good for about 10 seconds, then dropped a cylinder, then died completely and wouldn't start. Most of the fuel in the bowl had evaporated over the summer leaving "crud", then I pull the rope a few times and fill the bowl with fuel, just imagine all the "floaties" swirling around in the fuel. It doesn't take long to plug those tiny pilots up. I usually get away with it running long enough to ride onto the trailer so I can take it to the heated shop where I pull the carbs, but not this year. Had to drag it on and off the trailer. When I pulled the carbs all three pilots were plugged, plus one of the mains partially blocked.
You may have some of that bad fuel still in the lines and end up having to do the carbs one more time...
mattysmith440
New member
ya all 3 pilots had crud in them, but that one was blocked. cleaned the tank really good, put a new filter. Filled it with fresh ethanol free gas. and ya, I am definatly expecting to have to clean it out one last time. The lakes are frozen and were getting lots of snow, got her ready for the season just in time!!
You said plug was wet when it wasn't firing in that cylinder. Doesn't make much sense since there was no way fuel was getting into that cylinder. What was it wet with?
Mahoney
New member
Do yourself a favor and pull all three plugs so it pulls over easy and disconnect the fuel lines @ the carbs. Then keep on pulling until you have flushed all the crud out of the lines and pump with the new fuel. Then hook the lines back up and pull some more until the bowls fill, then re-install the plugs. I had to clean my pilots three times when they first started with the ethanol fuel because of this. Ever since I've tried all the fuel treatments and none of them worked. Fuel was always lime green and pilots blocked
I run mine dry after I pump out the tank @ the end of the season and then do a good fogging. Fresh fuel now in the fall and I'm good to go, no more problems.
I run mine dry after I pump out the tank @ the end of the season and then do a good fogging. Fresh fuel now in the fall and I'm good to go, no more problems.
run the slightly larger pilots in the SRX which would be 42.5
01 is the only year they came in size 40
01 is the only year they came in size 40
mod-it
Member
Mahoney said:Ever since Fuel was always lime green and pilots blocked
Exactly the color of my fuel when I pulled the carbs...we finally are getting a few stations with no ethanol in the super, perfect since the SLP pipes require super anyway...