what year 750, did we switch bikes here? the 700S has TRAC suspension with a dial to adjust the suspension. Not so on the 1991 -03 750
On Aug 4, 2012, at 2:03 PM, Dave duChene wrote: > Is the front suspension different on the 700, my 750 has no adjustment on the > front (other than air pressure)? > > On 4 August 2012 13:27, Graham Rogers <[email protected]> wrote: > 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!! 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