49 8N with 12V system. New-ish manifold & gasket, carb rebuilt. Have a put put putpupuputt put put sound coming from muffler. It is not as loud as a backfire. Seems to go away after engine is warmed up a good 15 minutes, but does not go away completely. Seems to occur more at lower idle than high.
Did compression test tonight - read 115 on all cylinders dry, 120 on all wet. Is that good or bad - does it have any bearing on putputput sound?
Where else to check?
Dukester
Did compression test tonight - read 115 on all cylinders dry, 120 on all wet. Is that good or bad - does it have any bearing on putputput sound?
Where else to check?
Dukester