Quote:
Originally Posted by Phony930
The questions I’m left with:
1) does adjusting WUR pin change AFR everywhere, or just in certain areas?
2) does adjusting the AFM screw change AFT everywhere, or just in certain areas?
…any recommendations on adjustments I should make?
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Hello,
The pin in the WUR changes only the CCP, which depends on the temperature of the engine (more precisely the WUR) at first start up. The colder the temperature, the lower the CCP needs to be, to enrich the mixture during start-up and warm-up. The more the pin is pushed in, the lower the CCP gets (at any temperature). If the CCP is to low at a given temperature (there are graphs for that), the pin needs to come out again and therefor you have normally to open the WUR. So the WUR pin is only important as long as the engine is not warmed up. When the engine is warmed up the the WCP is relevant and this one cannot be modified by the pin, but over the valve body.
The AFR screw is mainly adjusting the AFR in low rpm areas imho.
Ciao,
Peter