Here's the timeline:
Sunday: Took apart my '93 GS for the first time and removed the carbs and air filter.
Wednesday: (after 2 days of procrastinating) disassembled the carbs, cleaned parts with carb cleaner then dish soap, and carefully reassembled them. Added inline fuel filter.
Thursday: reinstalled carbs and very carefully put everthing back together. Bike starts and idles fine but is running way too rich (one touch of the throttle stalls it). Forgot to drill out brass plugs to adjust air mixture!
Friday: remove gas tank, carbs, and filter again so I can drill out the plugs. Reassemble everything exactly as last time. Bike won't start. Readjust idle and turn both air mixture screws to 3 turns out. Still no luck. I assume engine is flooded and call it a day.
Today: rechecked everything again (no kinked air or fuel lines, no loose connections, gas tank petcock is on). Remove and disassemble fuel petcock, check petcock and hoses for blockage (none found) and reassemble. Recheck fuel delivery from tank to petcock and to carbs; all OK. Bike still won't turn over. Removed spark plugs and checked for spark; OK but plugs look a little wet (still too rich and/or flooded?).
I'm at a loss as to what's wrong. It's been two weeks now with no riding and I'm starting get withdrawl symptoms.
Any ideas?
Quote from: DelIt's been two weeks now with no riding and I'm starting to get withdrawl symptoms
Poor you - I'm going on seven months! :nana:
Hope you get it figured out soon though!
OK where is the float set at??
Use U tube method...no need to take anything off the bike...
Cool.
Srinath.
at least you know when yo put it back together the first time it ran...look for what you might have disturbed in the carb reassembly the second time.
Quote from: pantabloat least you know when yo put it back together the first time it ran...look for what you might have disturbed in the carb reassembly the second time.
Thats what bugs me about the whole thing. I didn't take the carbs apart a second time. I simply pulled everything apart just enough to get a good angle on the brass plugs (I had no luck trying to remove them while the carbs were in place).
So the carbs have only been apart once and the bike ran after that. Seems unlikely something could've "shook" loose inside since the bike vibrates so much while running.
I've checked several other posts for ideas but, although the bike is a decade old, it only has just over 3K miles on it; not to mention it ran fine for 3 months until this. With everything put back the same way before taking out the plugs, I have no clue why the bike won't turn over. And, after a week of tearing down the bike, I have no plans to disassemble it entirely looking for the problem. I'd either take it to a shop and prepare to fork over some big bucks or sell the bike for parts (haven't decided yet; I'm also planning to buy a new bike soon with an extended warranty).
Would changing the original setting of the idle air mixture screws keep the bike from starting? Also, does anyone know how far to open the idle to get it closest to right (I have no idea where its set since the bike won't run)?
To set the idle speed screw, I unscrewed it just until it no longer made contact with nub on the linkage at closed throttle. Then turn it in one full turn. adjust it from there when you get it to run. I just went for a long ride and adjusted it from on the seat at stoplights etc. I had it set a little high and backed it down a little at a time, while I bump the throttle.
As for getting it to start, check all the rubbers at the carb intake, and engine, make sure they are tight and properly seated. slide the enrichener (choke) linkages a few dozen times on the carb itself, work the throttle a few times throught the entire range. try and turn it over. if it starts, GOOD! If not, give it a shot of starter fluid, or raw gas from a squirt bottle. Be very careful of the gas method as it could backfire and light things up real good! If it still wont fire, post again.