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1982 Nighthawk 450 questions

Posted: Wed Sep 07, 2005 3:43 pm
by mattwells
I don't thing all is well with my Nighthawk. For some reason, when accelerating at (for instance) 6k RPM, I will be slowly moving up in speed and then something will kick in and I will double my acceleration (or so it feels like) without changing the RPM's. I am wondering if maybe one cylinder is firing, and then the other kicks in? Any other possibilities?

Also, I feel like I should be getting more than the 37 MPG I am getting. I ride on the lower end of the power spectrum most of the time, trying to conserve gas, but to no avail. What could be going on?

Matt

PS- I just got this bike (first bike) and am thinking about doing a Tune-up soon, and that may solve the problems, but I wanted to get opinions first.

Posted: Wed Sep 07, 2005 4:00 pm
by ZooTech
Dunno what's wrong with it, but it's gettin' worse mileage than my 1600 so somethin's definitely up! :shock:

Posted: Wed Sep 07, 2005 7:40 pm
by BuzZz
A tune-up would be a good place to start. Plugs, filters, oil, check the valves, and clean the carbs. I'm guessing a plug or the carbs.

Posted: Thu Sep 08, 2005 7:50 am
by Itzamna
My Nighthawk 750 never got more than 40 mpg so it's not really that bad. Hell, I'm lucky to get 30 mpg on my SV1000, but that's for some different reasons. :twisted: I would agree with Buzz that you just need a general tune-up.