Starlet (non-gt)

[speedracer]

Hi all,

I have a Japanese-spec 1988 Toyota Starlet carby auto (in Australia) which has a strange issue.

When the car is up to temp i find that for a set position of throttle pedal, the engine speed will sort of pulse up and down. If i start to back off the throttle pedal the engine develops more power, until it changes up a gear.

Now i think this is probably related to either a temporary lean or temporary rich condition - possibly due to a vacuum leaky, or something...?

Timing is correctly set, fuel filter, air filter are new.

Local toyota specialist doesn't know what to make of the carby as it's an import :(

Any help appreciated.

Garth