Nighthawk 650 Lack of Power

October 26th, 2011 by BT Leave a reply »

Hopefully someone can give me good advice.  My mechanic skills are far less developed than my enthusiasm for bikes.

My 85 Nighthawk 650 takes about 6-7 minutes to warm up with the choke on, and giving it any throttle at all in the first couple minutes will stall it.  Once warmed up, the choke needs to be at least 1/3 on or it will not run.  It accelerates fairly well, but tops out at 70 mph.

I was thinking the carbs are definately gummed up, but then the other day I started to notice that something is burning inside the right exhaust.  Shut the bike off, and smoke is still coming out.  My thought was that possibly something built a nest in there and is clogging the exhaust….which would explain the poor fuel economy and lack of top end power.

Does anyone know how to remove the baffles easily?  I really don’t want to go through the headaches of removing exhaust that has been bolted on for 26 years if I don’t have to.  My plan was to remove the baffles and at least visually inspect the pipes….and see if it runs better with them removed.

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