1977 ds 185 carb issues - Motorcycle-Journal Forums

racerd14666 · 03-13-2007, 12:17 PM

i have a 1977 ds185 and the carb had 3 lines that were cut and plugged on the bike when i got it it ran fine and made decent power but wouldn't idle worth a crap and fowl out so i take the carb apart and theres no needle valve so i replaced it and now will idle all day long but dies out unless its running on the choke then it runs rich, so my question is since i didnt see a diaphram or pump in the carb diagram but there are the 3 lines that were cut and plugged are they vacume lines secondary fuel lines or vents ? i cant really tell what lines go to from the carb diagram. and cant find any info on what they go. any idea were i can get this info?

the_privateer · 03-14-2007, 04:19 AM

these lines, are there two running out the sides near the top and one from the float bowl? I'm pretty sure you're talking about the vent hoses. unclog them or replace if nessesary, then set your float and see how far that gets you

racerd14666 · 03-15-2007, 11:43 PM

yeah ones on the right side twards the intake side and the other is on the float bowl, where should the float be set?

the_privateer · 03-16-2007, 12:44 AM

every bike is different on the float height, you'd have to check a manual

eb77k · 03-16-2007, 04:08 PM

I'm not familiar with the ds 185. Is it a suzuki trail bike? If the bike had no needle valve (the needle running done the center of the slide? or the actual needle jet that the needle passes through?) in it and now won't run off idle it seems to me it's a mixture problem. The float level shouldn't be killing it, unless it's way way to high. The running only on the choke says LEAN (as in no gas). If the float was set so high as to not let the bike run the choke wouldn't help because the gas from the choke (or enricher cicuit) comes from the float bowl too. Get a little more specific and I'm sure we can help you get it going.

racerd14666 · 03-16-2007, 08:20 PM

Quote:

Originally Posted by eb77k

I'm not familiar with the ds 185. Is it a suzuki trail bike? If the bike had no needle valve (the needle running done the center of the slide? or the actual needle jet that the needle passes through?) in it and now won't run off idle it seems to me it's a mixture problem. The float level shouldn't be killing it, unless it's way way to high. The running only on the choke says LEAN (as in no gas). If the float was set so high as to not let the bike run the choke wouldn't help because the gas from the choke (or enricher cicuit) comes from the float bowl too. Get a little more specific and I'm sure we can help you get it going.

its a lean mixture problem, i dont how to correct it if its a float adjustment or if its a jet im not sure, but it was the needle valve off the float that was taken out to richen the mix but it would flood the carb and thats why the lines are plugged im guessing. but i replaced the lines with unplugged ones and it still leaks gas but not as much but it still lean so im guessing jet maybe? any one know the stock size so i can get a fatter size?

and i am looking for a manual for the bike but cant find one any were.

racerd14666 · 03-26-2007, 10:19 PM

so i tryed to take it for a spin and i didnt touch any thing from the last time i put it away drove it outta the garage and it would spit and sputter and die in about 100 feet it has good compression good gas and spark and the air filter is off i tryed spraying carb cleaner then either it would fire then rev up and die ive tryed starting with and with out the choke im yanking my hair out here any one have any clue what could be wrong?

03-13-2007, 12:17 PM	#1 (permalink)
racerd14666 Newbie Joined: Mar 2007 Posts: 4	1977 ds 185 carb issues i have a 1977 ds185 and the carb had 3 lines that were cut and plugged on the bike when i got it it ran fine and made decent power but wouldn't idle worth a crap and fowl out so i take the carb apart and theres no needle valve so i replaced it and now will idle all day long but dies out unless its running on the choke then it runs rich, so my question is since i didnt see a diaphram or pump in the carb diagram but there are the 3 lines that were cut and plugged are they vacume lines secondary fuel lines or vents ? i cant really tell what lines go to from the carb diagram. and cant find any info on what they go. any idea were i can get this info?

03-14-2007, 04:19 AM	#2 (permalink)
the_privateer Clunked into first gear Joined: Jul 2006 Bike: 2000 yz125 race prepped Location: bentonville, arkansas, us Posts: 230	these lines, are there two running out the sides near the top and one from the float bowl? I'm pretty sure you're talking about the vent hoses. unclog them or replace if nessesary, then set your float and see how far that gets you Last edited by the_privateer; 03-14-2007 at 04:22 AM.

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03-15-2007, 11:43 PM	#3 (permalink)
racerd14666 Newbie Joined: Mar 2007 Posts: 4	yeah ones on the right side twards the intake side and the other is on the float bowl, where should the float be set?

03-16-2007, 12:44 AM	#4 (permalink)
the_privateer Clunked into first gear Joined: Jul 2006 Bike: 2000 yz125 race prepped Location: bentonville, arkansas, us Posts: 230	every bike is different on the float height, you'd have to check a manual

03-16-2007, 04:08 PM	#5 (permalink)
eb77k Found second gear by accident Joined: Mar 2007 Bike: I'm lucky, I've got alot Location: minnesota Posts: 329	I'm not familiar with the ds 185. Is it a suzuki trail bike? If the bike had no needle valve (the needle running done the center of the slide? or the actual needle jet that the needle passes through?) in it and now won't run off idle it seems to me it's a mixture problem. The float level shouldn't be killing it, unless it's way way to high. The running only on the choke says LEAN (as in no gas). If the float was set so high as to not let the bike run the choke wouldn't help because the gas from the choke (or enricher cicuit) comes from the float bowl too. Get a little more specific and I'm sure we can help you get it going.

03-26-2007, 10:19 PM	#7 (permalink)
racerd14666 Newbie Joined: Mar 2007 Posts: 4	so i tryed to take it for a spin and i didnt touch any thing from the last time i put it away drove it outta the garage and it would spit and sputter and die in about 100 feet it has good compression good gas and spark and the air filter is off i tryed spraying carb cleaner then either it would fire then rev up and die ive tryed starting with and with out the choke im yanking my hair out here any one have any clue what could be wrong?

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