On such a small amount of info, I can only speculate a few things. First off, I can't verify the quality of work done by any other source. That bike has a mechanical advance. I'd Check to make sure it is functional. Your symptoms sound like an advancer that is stuck. Another item is the accelerator pump. When you did the carbs, did you do all at once or one at a time ? >From your riding position, all vacuum caps should face you ( the printing readable, not upside down) Getting those wrong will cause throttle response problems. To compare it to a CX500 is a travesty. A CB750C should be able to tow one of those faster than it could go on it's own. One final question, does it even run on all four ? (hint; you can sync carbs on a bike that has dead cylinders) A two cylinder 750 would run worse than a CX500. Check for all four, get a timing light and check for advance, look for discharge from accelerator pump. Most techs at dealerships today have little / no experiance with elderly Honda's. Most weren't born when those bikes were new.
--- On Thu, 5/14/09, [email protected] <[email protected]> wrote: From: [email protected] <[email protected]> Subject: [Nighthawk Lovers] How responsive is a 1983 750sc NH? To: "Nighthawk Motorcycle Lovers!" <[email protected]> Date: Thursday, May 14, 2009, 8:35 AM Long story short... I bought my NH about 2 months ago from a guy who didn't winterize it. It was such a deal for here in Alberta I bought it. I cleaned the carbs and had them professionally tuned. I recharged th K&N and replaced the plugs. When I got it up a running and took it for a test drive it seemed to lack umph after everything was done.... Since I didn't have it to ride before I bought it. I have nothing to compare it to, but my 1982 CX500 which was super responsive and quick off the line. My NH seems to just want to smoothly increase no matter how much I roll on the throttle. Any thoughts on how to improve throttle response time? Any help would be greatly appreciated, thanks Joel --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
