It sounds like something electrical on the missing cylinder otherwise it would miss all of the time. Igniter? Coil? You'll have to test it to be sure. It may be reving up to compensate for the missing cylinder, but a little surge is normal on my bike. HotrodMamma.
________________________________ From: ThePoulsen <[email protected]> To: Nighthawk Motorcycle Lovers! <[email protected]> Sent: Thu, April 22, 2010 10:27:59 AM Subject: [Nighthawk Lovers] Periodic problems with my 85 CB 650SC Hey All Im having some trouble with my bike. 1. Since I got the bike (roughly 5k miles ago) it has had a bad clutch, it works fine for a while but slowly the clutch engagement point travels outwards on the lever untill finally the clutch starts to slip at high RPM's (4000+) When this happens I just release the bleed screw at the slave cylinder where a small jet of brake fluid shoots out, I tighten the bleed screw while engaging the clutch lever a bit to avoid air getting in. after this it runs like a charm for a while more. I have changes the clutch lever, master cylinder piston, spring and rubber parts, as well as the slave cylinder spring and rubber. the cylinders looks great so I don't think this is the problem. When I bled the clutch I did it with the slave cylinder on the bike and ran a full reservoir of air-less fluid through the system. 2. The engine seems to periodically run on only 3 cylinders, (Could this be the carbs needing cleaning?) 3. When idiling on all 4 cylinders the engine tends to go from 1300 rpm to 1500 rpm as it sees fit. could this be dirty carbs or carbs needing syncronization? I look forward to heering from you :) -- 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.
