AFR guage


you need a power supply for that one to work from what I have seen. you could use rockstoy's power supply from your headlamp as it has 2 rca's for heated shield that has stable 12v dc. used one similar to that on my xt to tune the carb and we had to run it from battery.
 
support@trailjamz.com this is the site for another product rock makes. he is a site advertiser on the 4 stroke side.

you can do it with the battery method, I just do not know how long it will last in the cold.
 
you could get away with one but 2 might be safer. all depends on how the airflow works. most twins are jetted the same for both cylinders in my experience.
 
you could get away with one but 2 might be safer. all depends on how the airflow works. most twins are jetted the same for both cylinders in my experience. just make sure you put it on the hotter running cylinder if running only one.
 


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