haha kirk, you just need to know how to do it,How can you confirm the HI is correct without knowing what it should be, I'm familiar with a calculation to use gas rate to work out what the HI is, but as I say how do you then know it's right?
no data plate or manufacturers instructions required, just remove the injectors,
measure the orifice
use the formula Q = 0.036 d2 C {√ P/S } = m3/hr
then knock up a new data plate,
old school stuff lol
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