Figure 7. Bore up 150 cc (standard cylinder head) fuel consumption

From

Experimental Study on the Effect of Bore Up, Stroke Up, and the Use of Valves on 105 cc Engine Perfomance

Rochmad Novian Inderanata, Thomas Sukardi, Slamet Priyanto

American Journal of Mechanical Engineering. 2019, 7(4), 188-194 doi:10.12691/ajme-7-4-5