Comments on: 1982 Honda Nighthawk 450

By: leon

leon — Thu, 12 Jan 2012 04:21:45 +0000

i have a 82 black 450 nighthawk w/ 2900 miles. been in storage for over 30 years….just redid the carbs and it runs like a top. looking fo a headlight trim and left fr & rear turn signals w/ mounting bars….after that it going on the market….asking 950.00 . if interested email me or facebook….leon lewis

By: 450 espresso

450 espresso — Mon, 09 Jan 2012 21:21:09 +0000

Hello,
Any chance you have a clear decent rez side view photo of the 82 450 nighthawk without the tank or seat in place…you can guess what im thinking…everyone says you cant cafe one but they are such great reliable bikes and i was going to look for one to buy and do it just to prove it can be done and be done well…thanks alot in advance

By: Shane

Shane — Wed, 28 Dec 2011 19:08:22 +0000

Hello I have a 450 82 nighthawk and in need of a new ignition email me please if you have one

By: amdccc

amdccc — Tue, 16 Aug 2011 16:55:43 +0000

Nice, I am from Lufeng China

By: Spencer

Spencer — Sun, 10 Jul 2011 06:25:10 +0000

I moved up fron a ‘87 Rebel 250 to a ‘86 Nighthawk 450 a few weeks ago. As a learning rider (I’ll always continue to learn) the higher seat took a bit of getting used to but it seems to make the bike easier to curve with. The engine has a lot more power on paper but due to the higher gearing it doesn’t seem that much more power until you realize that unlike the 250 the 450 can keep up on the interstate. Still I’m going to change the front sprocket to a 16t to give a bit more (6 %) guts to 6th gear. I spend most of the time around 55 mph with some hills going to my shop. Large saddlebags and a plexisheild 2 wind screen should make this a 3 season bike for me. My only complaint is the 41 mpg I now get (started out @ 38 mpg but a few tanks of Sea Foam helped clean the old carbs). I’m hoping rebuilding the carbs next winter will improve the milage unless someone has a suggestion for this 25 yr old bike with 10,000 miles on the clock. Bottom line is a bike is meant to be fun and ecnomical and this is a good sized bike for both.
Spencer

By: Robert Kariniemi

Robert Kariniemi — Wed, 04 May 2011 17:44:28 +0000

Don,
It is the sync screw. Bench sync the carbs so that one half of little hole in the throttle plate is exposed, so that you are close. Then synchronize it completely on a running engine. I use the tubing manometer, designed according to a web procedure filled with tranny fluid. My engine sync is perfect now!
Robert

By: Don

Don — Wed, 20 Apr 2011 00:50:46 +0000

I bought a 82 nighthawk cb450sc new and it has always ran great. Last week I went to open it up on the interstate and it bogged down. Idles ok but can’t go fast. I have a spair carb that I rebuilt and put on it knowing this would solve the problem but the same thing happened. I replaced plugs, pitcock, fuel line, air filter, dumped the gas in the tank and cleaned it and no better. I live in the boonies and there’s no where to take it close. Could it be points ? Does it have points ? Any ideas ? Help please.

By: Jeff

Jeff — Mon, 11 Apr 2011 21:18:51 +0000

I need to find replacement brake shoes for my CM450C, but the rear wheel is not stock. It’s an 18″ comstar or comcast (I’m not clear which is which). Inside the brake drum/housing, it said “Max. Dia. 141.0mm”. Does this help me in any way find the right brake shoes?

By: Jeff

Jeff — Mon, 11 Apr 2011 21:15:29 +0000

Following up for what it’s worth to others.

Got my bike on the road yesterday after a couple days of work. Replaced the drive and driven sprockets and the chain. Went with the stock parts and all is good. Procedures were easy to follow from the Cramer manual. I really cleaned the gunk out of that drive sprocket area!

I found that the issue with the “bottoming out” is due to the larger 18″ wheel as opposed to the stock 16″ wheel. There is simply less clearance between the tire and that inner fender so on big bumps it will always scrape a bit.

Next job is brake shoe replacement (I found how low they were when I had the wheel off.)

By: Evan Fell

Evan Fell — Mon, 04 Apr 2011 10:47:54 +0000

Hi Jesse – It’s possible you don’t have a master link, not all chains do. It could have been pressed together.

You don’t need to remove the chain to lube it. Just pop the bike up on the centerstand and spin the wheel while cleaning and lubing it up.