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About Bill Silver
Expertise
Need help with vintage Hondas from the 1960s? I am an expert with 250-305cc bikes in particular and most all of the other pre-91 models, in general. I do NOT claim to have a great deal of experience on Gold Wings, Cruisers, ATC/ATVs and dirt bikes.

Experience
I have owned/ridden/maintained Honda motorcycles for 35 years. I have written five books on Honda repairs and collecting. I was a service manager for two Honda shops back in the 1980s.

Organizations
VJMC (Vintage Japanese Motorcycle Club) of North America

Publications
VJMC newsletter, as editor for two years and as contributing editor currently.

You are here: Experts > Shopping > Motorcycles > Motorcycle Repair > 1984 nighthawk 700s

Motorcycle Repair - 1984 nighthawk 700s

Expert: Bill Silver - 10/31/2009

Question
I just got this bike (16,000 mi- non Calif. model), it runs well but I know they leaned these out to meet EPA regs at the time. It is cold natured on start-up as they all are- I have an '82 Ascot that I went up a coupla jet sizes on and it is a completely different motorcycle as a result of-- what do you recommend on a rejet for the Nighthawk? I live in East Texas- Altitude 500 ft.? Thanks, Terry

Answer
Terry, often the best way to solve the off-throttle leanness is to get to the idle mixture screws and richen them up about 1/4 turn or so. Otherwise, a jet kit would offer a way to raise the needles a little and maybe increase the main jet size a step. Depends a lot whether you have modified the intake or exhaust system.

I had the same experience with my Ascot FT500 and it did make a big difference in how it ran...

Bill Silver

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