Freestyle Best way for checking engine temp?

Location
Ireland
Just looking to see what people think is the best way to check engine temp.I have dual cooling and think im running a bit cold.The water from both pissers is only lukewarm when I hold my hand under them.
 
Location
Ireland
It would be nice to ski somewhere warm for once. Im running B pipe,head with 37cc domes,V force reeds,AM air filters. Sounds like its fairly ok then, Thanks for all the info.
 
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