I drained the nasty gas in it and cleaned the bowls on the carbs and reassembled and put it in fresh gas with fuel system cleaner. It will idle at about 1700 rpms if I have the choke on full. If I try to give it gas it dies and if I try to reduce the choke it dies. Not sure if it is still gunked or what. Ideas? If it is still gunked is there a specific carb or fuel injector cleaner that is especially effective with motorcycles that have sat so long? Best answer points to the person that comes up with a solution that does not involve removing the carbs again. Thanks.
2006-08-20 14:22:39 · 14 answers · asked by CallMeDigitalBob 3 in Cars & Transportation ➔ Motorcycles
BG 44K fuel injector cleaner may solve your problem!!
2006-08-20 14:56:08 · answer #1 · answered by fire4511 7 · 0⤊ 0⤋
A 2 parter...
Warning : OUTDOORS WITH PLENTY OF FRESH AIR!
1-Years ago I took a chance that I could improve my bikes sputtering problems and maybe get some performace back if I 'rebuilt' my carbs. I suspected gummed up jets or some dirt in the circuit passages but did not want to dismantle the 4 mated carbs. Attached to my inline 4 cylinder engine (a '81 Suzuki GS 1100). The mated pairs were removed & all non-metal parts, mostly rubber tubing and airbox connectors taken off. I got a metal bucket then poured over what I needed to cover the carbs out of a gallon size can of ACETONE. Today I would wear a mask and gloves since the FUMES alone will choke you while its pouring! I had to cover over the bucket so that the stuff wouldn't evaporate. Acetone is used as 'nail polish remover' but stronger from a hardware supply store. After 15 minutes I removed the carbs and could see it was cleaning the metal body as if it were brushed. I judged by the color of the remaining fluid in the bucket that was dissolving some nasty crap away out of the carb body and its guts. They went back on my bike and performed better than before. all I did was dissolve away the outside grime and inside gumming. I did again a few years later on another bike but let it soak over night. Same results again by improving performance. ( I would only advise this for someone who is willing to take the pre-cautions though, Acetone is really playing with liquid fire.)
2- Since you already opened it DID YOU bend the metal tang that shuts off the gas flow ? Its adjustable by bending the tang to shut-off a needle pin pushed into a rubberO-ring that controls the flow of gas into the bowel. Its easy to rebend back if it is off but its one of those checks that should be made before reassembly when you re-set them back into the carb.
2006-08-20 15:12:38 · answer #2 · answered by ? 4 · 0⤊ 0⤋
You might try looking for a carb book and reading up on them. there are a few different types of carbs and they have there own systems. I had a Yamaha at one time and it had a section that when you gave it throttle, there was a pump that introduced extra fuel, just like a cars..So there may quite a few different reasons why it isn't running well, and you didn't say if you cleaned the whole carb when you took it apart, just that you cleaned the bowls...
2006-08-20 14:41:08 · answer #3 · answered by chazzer 5 · 0⤊ 0⤋
Yeah, take the carbs off and clean all the jets, check the air filter is not clogged up, also the piston rings may be gummed to the piston letting gas pass, take the oil filer plug off and feel if any pressure is coming out of the hole.
2006-08-20 14:31:08 · answer #4 · answered by tattie_herbert 6 · 0⤊ 0⤋
sorry charlie but the carbs do have to come off again, by a carb dip and soak em overnight. blow out all orifices with compressed air its your idle curcuit. the jet is really tiny. you might even want to just buy rebuild kits and replace the jets and needles.your also going to need to synchronize them since they have been off and apart. Hope you have gauges.
2006-08-20 15:41:02 · answer #5 · answered by Anonymous · 0⤊ 0⤋
taking off ur carb would help...buy you really don't have to...this has happened to me before...your exhaust, and chamber may be full of carbon(it happens)fire the bike and just let it run..for a while...after a little while try giving it just a lil gas..and reducing the choke just a little..good luck
2006-08-20 14:37:38 · answer #6 · answered by john m 1 · 0⤊ 0⤋
its is not gunked it is getting to much air into the Carb. it is choking out the fuel mix.
2006-08-20 17:37:55 · answer #7 · answered by naljeb 1 · 0⤊ 0⤋
Idle jets are probably still gummed up. they have a very tiny hole in them .Its so small it is hard to see through it even when they are clean. since you dont want to pull the carbs , do this... turn the bike upside down and use a torch to remove anything in the way and ..presto!
2006-08-20 14:36:49 · answer #8 · answered by wrench'n away 3 · 0⤊ 1⤋
the idle circut is dirty, take the whole carb off and apart and soak it and clean it, you will have better results.
2006-08-20 14:30:48 · answer #9 · answered by geetarpicker04 3 · 0⤊ 0⤋
it must be having a gas or some extreme problem.Oherwise what i know about YAMAHA is that it is the best.it runs very smoothly.
2006-08-20 23:17:28 · answer #10 · answered by sparsh m 1 · 0⤊ 0⤋