PDA

View Full Version : 185s carb jet size?



2boys
03-22-2005, 03:16 PM
I have this 83 model 185s that has had a hard life and am resurrecting it slowly. The thing would never idle properly but ran good otherwise. I talked to a bike mechanic and he said the problem is that the needle wears an oblong hole in the pressed guide. Well, we ordered the part from Honda ($39.00) and he installed the guide and I put the carb back together. Well, the thing idles beautiful now and has good response but bogs above 3/4 throttle. It feels too lean. My Clymer manual doesn't list this carb (PD85A) but the PD85C uses a 100 jet and I have a 98 jet in mine. Can anyone verify the correct jet size?

BTW: I had a problem with runaway idle speed the longer it idled. I found out that the throttle cable sits above the engine and when idling the heat goes straight up to the cable and apparently stretchs the outer casing more than the cable and it actually increases throttle speed sitting there! The cure it to make sure there is slack in the cable by screwing it in far enough into the carb top cap assembly.

dads
04-02-2005, 04:42 PM
Don't see your carb.

2boys
04-02-2005, 06:38 PM
I sure don't! I went ahead and put a 100 jet in it and I still had a bog or hesitation. I went ahead and moved the needle up and that helped somewhat. I'll leave it alone now. I checked timing and adjusted it but it really doesn't matter where I have it-it runs the same. The engine probably has low compression and I'm just expecting too much.

On another note, I overhauled my 200x carb because of hard starting once in awhile and off idle blubbering. Well, I installed everything from a Moose kit and upped the jet size to 110 from 108 to compensate for DG exhaust and adjusted the pilot screw out 2.25 turns but it still blubbered but idled now with the pilot jet out (had to be turned in all the way before). I screwed it back in .25 turn and it seemed to idle smoother. I went ahead and pulled the metering rod and adjusted it from the factory setting of 4th groove to 2nd groove and no more blubbering! It could have been the replacement rod was a bit different so it had to be adjusted differently. Now it's strong at all throttle settings without missing and blubbering. Now I don't kill it so often when the clutch engages!