04-23-2015, 04:17 PM
(04-23-2015, 03:47 PM)Stichill_imp Wrote: I don't (yet) own a CB1100 but I have to think that this is possible. You probably need to be prepared to acquire additional parts that might be affected by the larger tank. However, thinking logically, Honda would haved increased the tank's capacity by going wider and/or taller, so the mechanical interfaces at the front, underside, and rear should be the same. If there is any substantial risk, it is that the seat might be different.
I just looked at some photos for comparison and it looks like the rear of each tank terminates at the same point, so I think that I can bank on the current seat being compatible. Someone did say in another thread that there was a difference in saddle size, though. Hm. I want to get a new seat eventually anyway, to accommodate for longer rides. That would definitely break my bank to have to buy both tank and seat right now, though. Tank wise, I did find this information (post by user KennyB):
"The larger tank will fit and the 13' fuel pump will bolt right up to the 14' tank. The fuel pressure spec for both systems is 50 psi at idle. The fuel flow rates are: 13' 9.8 us oz./10 sec. and 14' 13.3 us oz./10 sec. I'm not sure why? Injectors are the same, cams are the same, etc. unless it has to do with tank volume. The physical shape of the fuel pumps are different with different pick-ups for the sending unit so I'm not sure how the fuel gauge will read."
So I'm wondering, what would be the consequences of fitting this larger tank to a bike that was meant for a lower 'fuel flow rate' than the bike that the tank was originally intended for, if all other aspects are the same? Anyway, thanks for your response.
