Yamaha YZF-R7 Forum banner
1 - 4 of 4 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter · #1 · (Edited)
I feel like my R7 is running rough, I don’t know how to better describe it. I dunno if that’s normal but my friend’s 2006 R6 feels like riding silky butter and my R7 in comparison kinda feels like…a lawnmower? For lack of better words…Is that just the feel of a crossplane engine & difference in power? This might be a total noob question so please forgive me. I’ve been only riding for 2 years and this is my 2nd bike but I hate how it rides and even my first bike (CB500F) didn’t feel this rough. First maintenance done at the dealer, now sitting at 3,300 km. Can someone tell me if this is normal?
 

·
Registered
Joined
·
158 Posts
If it wasn't for the counter-rotating balancers it would shake like an XS650. A 90 degree V-twin crank is naturally balanced because there's always a piston moving in the opposite direction of both crank weights. A Harley 45 degree V has a fore and aft shake because the pistons are moving half way parallel to each other. A 90 degree V-twin and a CP cranked inline twin have the same firing intervals but an inline twin has a natural fore and aft shake like a Harley. There're also a couple other imbalances inherent to parallel twins that V-twins don't have to deal with. The Bolt's 60 degree V is pretty smooth with solid motor mounts and no counter-rotating balancers.
 
1 - 4 of 4 Posts
Top