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I have an 83 Aspencade I have bought from about 4-5 years storage.
I have had carbs off 3 times, and ridden the bike about 300 miles thus far.
Bike will idle-never fails to. Power on take off is lousy-it runs like it may
only have one carb feeding under takeoff, even though it idles perfectly
(or appears to). On the road, all four kick in at about 65 mph (in 4th) or
4000 RPMS. So my hi-speed performance seems good - was able to
pull 90+ quickly before I shut it down. It's just my throttle response
from takeoff to 4000 rpm that something is wrong....
When I have had these carbs apart, I noticed that one of the needle
valve springs appears frozen, and I can't believe this is correct. It
appears that all four floats rest in a similar position, with the float lines
paralell to the surface of the carb body. I did have some blocked
(small) jets under the small brass jets. However, once I cleaned
these small jets, I would have expected better performance, since
I reassembled with all 8 jets clear. On a previous dis-assembly, I
had needle jets stuck open (slow leak) but that is no longer a
problem. So I have two questions.. or three
1. Do I still have carb problems? or
2. Is my ignition advance sticking?
3. Is it something else?
Thanks for all the info I have read thus far...
Arkyman
I have an 83 Aspencade I have bought from about 4-5 years storage.
I have had carbs off 3 times, and ridden the bike about 300 miles thus far.
Bike will idle-never fails to. Power on take off is lousy-it runs like it may
only have one carb feeding under takeoff, even though it idles perfectly
(or appears to). On the road, all four kick in at about 65 mph (in 4th) or
4000 RPMS. So my hi-speed performance seems good - was able to
pull 90+ quickly before I shut it down. It's just my throttle response
from takeoff to 4000 rpm that something is wrong....
When I have had these carbs apart, I noticed that one of the needle
valve springs appears frozen, and I can't believe this is correct. It
appears that all four floats rest in a similar position, with the float lines
paralell to the surface of the carb body. I did have some blocked
(small) jets under the small brass jets. However, once I cleaned
these small jets, I would have expected better performance, since
I reassembled with all 8 jets clear. On a previous dis-assembly, I
had needle jets stuck open (slow leak) but that is no longer a
problem. So I have two questions.. or three
1. Do I still have carb problems? or
2. Is my ignition advance sticking?
3. Is it something else?
Thanks for all the info I have read thus far...
Arkyman