Tuning carburetor on 1992 CA tw200 (updated 7/11/19)
Hey guys, im almost happy with where this bike is at, but i do have a stumble at WOT (wide open throttle) heres the rundown-
1992 CA compliant tw200 (stock)
got in non riding condition, checked electrical seems ok for the most part, battery holds a 11.6 voltage overnight after being on a trickle charger and at idle is around 12.5v, 13.5v with revs
took off carb, cleaned all jets and slides, pulled air idle mixture plug and checked- factory setting was 1.5 turns out, adjusted to 2.5 but way too rich, now currently around 1.80-2 turns out. Removed top cap and slide assembly/ needle from carb, shimmed the needle with (2) M3 washers (approx .03mm thick total). Now starts without choke at that setting and idles without dying (it was sputtering and dying at idle before and required choke on a warm day with bike in the shade), it will bog if i whip the throttle open immediately, but if i roll the throttle on it revs perfect and multiple throttle whips after its off idle yield immediate response. When riding, throttle response is fantastic, however, if i twist throttle to WOT is bogs, sputters, looses power pretty much immediately. If i roll the throttle up through the revs smooth it seems OK, but throwing it into WOT seems to create a lean condition.
What brand is the stock carburetor on a 1992 CA model? What is the stock main jet size on this bike, as well? I tried looking when it was apart and couldnt read whatever was stamped on it. Will a 130 main jet for the newer model tw200 be too much for this bike? Thanks!
Hey guys, im almost happy with where this bike is at, but i do have a stumble at WOT (wide open throttle) heres the rundown-
1992 CA compliant tw200 (stock)
got in non riding condition, checked electrical seems ok for the most part, battery holds a 11.6 voltage overnight after being on a trickle charger and at idle is around 12.5v, 13.5v with revs
took off carb, cleaned all jets and slides, pulled air idle mixture plug and checked- factory setting was 1.5 turns out, adjusted to 2.5 but way too rich, now currently around 1.80-2 turns out. Removed top cap and slide assembly/ needle from carb, shimmed the needle with (2) M3 washers (approx .03mm thick total). Now starts without choke at that setting and idles without dying (it was sputtering and dying at idle before and required choke on a warm day with bike in the shade), it will bog if i whip the throttle open immediately, but if i roll the throttle on it revs perfect and multiple throttle whips after its off idle yield immediate response. When riding, throttle response is fantastic, however, if i twist throttle to WOT is bogs, sputters, looses power pretty much immediately. If i roll the throttle up through the revs smooth it seems OK, but throwing it into WOT seems to create a lean condition.
What brand is the stock carburetor on a 1992 CA model? What is the stock main jet size on this bike, as well? I tried looking when it was apart and couldnt read whatever was stamped on it. Will a 130 main jet for the newer model tw200 be too much for this bike? Thanks!