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Triple Jim · March 12th, 2018, 11:38 AM

Primary gears are a pair of gears that connect the engine to the transmission. Straight cut gears tend to whine, but since I don't have a newgen 250, I'm don't know how much is normal. My pregen does not have a noticeable whine. Some of the newgen owners can advise you on this.

Excess whine could be caused by wear, or by gear clearance that's too big because of a bad bearing, as examples.

March 12th, 2018, 11:38 AM	#15
Triple Jim Guy Who Enjoys Riding Name: Jim Location: North Carolina Join Date: Jul 2016 Motorcycle(s): Ninja 250 Posts: A lot. MOTM - Oct '18, Aug '17, Aug '16	Primary gears are a pair of gears that connect the engine to the transmission. Straight cut gears tend to whine, but since I don't have a newgen 250, I'm don't know how much is normal. My pregen does not have a noticeable whine. Some of the newgen owners can advise you on this. Excess whine could be caused by wear, or by gear clearance that's too big because of a bad bearing, as examples. Last futzed with by Triple Jim; March 12th, 2018 at 01:38 PM.