This is, I hope, an educated guess. I'm more familiar with the NH750 fuel system than yours, but they seem very similar.
The cap and the petcock would seem to be separate unrelated issues, but since you mention the tank having been damaged, I'm wondering if maybe they weren't both damaged by some weird twisting motion of the tank when the bike was laid down. That might account for the cap's failure to seal. The flange around the filler opening may not be perfectly flat and level enuf to accommodate it. Or there's a possibility your new cap may be a California-style unvented type that was designed for the evap control systems on those bikes. As for the fuel intake tube, it is pretty obviously bent at some point down in the throat of the petcock. That tube and the filter sleeve that fits over it are pretty much a matched set, meant to be centered all the way to the base of the throat where the filter is held in place by an o-ring. The leak from the on-off-reserve control is pretty obviously related to the bent fuel intake tube, since the tube bottoms out down inside that assembly. The assembly is riveted, so it can't be disassembled. (Actually, it can by drilling out the rivets, drilling and tapping and replacing with screws, but I dunno if you want to go to all that bother). You might try pulling the intake tube out of the housing with pliers to see if there is anyway to repair it. If it's brass, you may be able to straighten it. If plastic, some judicious use of heat (hair dryer) might do the trick. Hope this helps. -- 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.
