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wildflyer · 07-03-2008, 04:07 AM

Hi guys. Need help. I have a GR Pro engine, 50cc single cylinder gas engine. I find it hard to start. I used the mahufacturers setting in the Low (2.5 turns) and High (1 turn) setting for the needles and still hard to start. When the engine finally started, (after 6 full turns of the Low end needle) there is a BIG vibration of the engine. I am using 1:30 ratio of fuel/oil, prop and spinner is balanced. Any of you guys out there tried this engine? Does it really give off a lot of vibration during the break-in period?

07-03-2008, 04:07 AM	#1
wildflyer Flyin' Around Join Date: Aug 2006 Location: Manila, Philippines Posts: 3	GR Pro 50cc engine Hi guys. Need help. I have a GR Pro engine, 50cc single cylinder gas engine. I find it hard to start. I used the mahufacturers setting in the Low (2.5 turns) and High (1 turn) setting for the needles and still hard to start. When the engine finally started, (after 6 full turns of the Low end needle) there is a BIG vibration of the engine. I am using 1:30 ratio of fuel/oil, prop and spinner is balanced. Any of you guys out there tried this engine? Does it really give off a lot of vibration during the break-in period?