Hi all,
I am thinking of buying an exhaust gas analyzer (Gunsons, https://www.gunson.co.uk/product/G4125) to help with getting the mixture right on my BT7 twin carb. I currently use two Gunson Colourtune's ( in cylinder no. 2 and 5) but always feel the mixture is too rich despite getting a blue colored combustion.
While I understand the I could use the exhaust gas analyzer to match the CO output from the two tail pipes (assuming they are each fed from separate carbs I am less clear about what the ideal CO % should be. I have read anywhere from 1-6%?
Does anyone have any experience of using a Gunson's exhaust gas analyzer? Also does anyone know what the optimized CO level should be for a BT7?
thanks
Phil
I am thinking of buying an exhaust gas analyzer (Gunsons, https://www.gunson.co.uk/product/G4125) to help with getting the mixture right on my BT7 twin carb. I currently use two Gunson Colourtune's ( in cylinder no. 2 and 5) but always feel the mixture is too rich despite getting a blue colored combustion.
While I understand the I could use the exhaust gas analyzer to match the CO output from the two tail pipes (assuming they are each fed from separate carbs I am less clear about what the ideal CO % should be. I have read anywhere from 1-6%?
Does anyone have any experience of using a Gunson's exhaust gas analyzer? Also does anyone know what the optimized CO level should be for a BT7?
thanks
Phil