A credible source of mine kind of said the same thing - ambient air pressure is sufficient, adjust tension same way as rear forks - manually by the numbers
On Aug 4, 2012, at 12:18 PM, Hanghank wrote: > Regarding front fork air pressure: I cannot recall where I saw this > information, but I considered it very authoritative at the time. It was very > difficult for me to get the correct air pressure in the front forks. The > volume is so low that just attempting to get a pressure reading with a gage > released enough air to negate the reading. The info said to put the bike on > the center stand, place weight – a second person? – on the rear to raise the > front wheel completely off the ground, which would extend the front fork > tubes completely. Release all the air in the fork tubes so they are at > atmospheric pressure only. You are done. When returned to the ground > position, the weight of the bike will compress the air in the forks to the > desired pressure. I tried to check the pressure but the gage would release > enough air to give the wrong pressure. I think a hand pump with an integral > gage would enable you to pressurize it correctly. > > > From: Nathan Hall > Sent: Saturday, August 04, 2012 3:13 AM > To: [email protected] > Subject: [Nighthawk Lovers] 1984 Nighthawk 700 Oil leak/front forks air > pressure question > > Hi everyone, > > I'm new to the discussion board, but I've been riding an '84 Nighthawk 700 > (red and black, the better-looking one) for about 3 years now and it's become > my favorite bike to ride, hands down. I've yet to find another bike that > compares, and I'm sure you guys know where I'm coming from. > > One problem it's had since I've owned it is that it will leak oil from the > left-side head if it's either set on its kick stand or being run thoroughly. > On its center stand, there is no problem with leaks on the garage floor, but > when I go for several long rides over time it will give my left foot a good > coating of oil. It's obvious where the problem is coming from -- the > left-side head gasket. I've just never been too concerned with it because I > lose half a quart maybe every 400 miles. I jokingly call it my > "self-changing-oil" mechanism, but it really is something that needs > remedying at some point. I'd like to gain some insight as to how difficult > it is to change a head gasket on a Nighthawk. It works so perfectly right > now that I'm always a bit apprehensive about changing things around. It > seems like every old bike you work on has developed a certain groove in which > it likes to operate and replacing/changing parts never really goes over well. > > Has anyone done this sort of job before, and how difficult is it? I imagine > it requires completely removing the engine, which I'm not currently set up to > be able to do. If it turns out to be an actually serious problem, I will > surely get it fixed as quickly as possible though. > > One other quick question is about putting air in the front forks. My front > forks have been diving a bit more than preferable when I brake and a friend > of mine told me that I must use a bicycle or hand pump to get the forks to > the right PSI because it requires such low PSI (1-2 PSI if I remember > correctly). Could anyone verify this? > > I appreciate any info/responses to my questions and I'm also glad to be a > part of the Nighthawk lovers group!! Thanks. > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To view this discussion on the web visit > https://groups.google.com/d/msg/nighthawk_lovers/-/IOJGjYx6oiUJ. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Nighthawk Motorcycle Lovers!" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group at > http://groups.google.com/group/nighthawk_lovers?hl=en. -- You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en.
