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General Motorcycle Discussion / Re: Potential purchase (high mileage)
« Last post by Quattro695 on December 14, 2017, 12:18:21 PM »
Thanks for the tips. This would just be a beater to get me back into riding, after many years away. I'm not expecting mint condition on a 80k commuter bike. I just really like the 700s...Maybe I'll keep looking.
General Motorcycle Discussion / Re: Potential purchase (high mileage)
« Last post by ExTex on December 14, 2017, 08:11:07 AM »
Be sure to check the tires for age.  If over 5 yrs old, use the cost of new tires to lower the price.

If you can get the bike for $750, then it becomes a good deal (for you), if you are "stuck" on the color and design.

Merry Christmas

General Motorcycle Discussion / Re: Potential purchase (high mileage)
« Last post by DesertDragon on December 14, 2017, 07:53:04 AM »
I would concur with the other opinions so far.. One item to add is finding parts if needed can be a challenge with any 30+ year old bike.
As Mollusc said, there could be a lot of life left in it if it was well cared for.. but if not, it well could be nearing serious trouble land.
It doesn't look particularly well cared for... not just the dents, but rusty bolts whisper neglect...
Excuse me if I'm a bit pedantic, but I don't know your experience level.
Things I'd ask (if you haven't already):
Bike history - How long owner had it - Why selling it - Any maintenance receipts - What has current owner done with it - CAN you let a mechanic check it out..
Check engine oil - sludge or really dirty - I'd walk
It starts and runs - does it smoke- was it cold when first started or did he use a lot of starting fluid a few minutes before you showed up?
How does it ride - clutch and tranny work ok?  Any weird noises (like grinding or whining final drive)
Head shake or not?
How about tire AGE - even if you've got tread, rubber much over 5 years only looks like a tire - Look at the DOT emblem 4 digits WWYY WW = weeks of year YY = year  e.g. 5012 is a tire exactly 5 years old (50 weeks into 2012, or mid December 2012).  Not a deal breaker, but maybe a negotiation point if other things look good.
Rubber parts condition - Some can be replaced aftermarket (e.g. hydraulic lines) but some others are likely shot and need replacement.
This may also tell you some of the story as to how the bike was stored.

I guess the first question should have been what you want to do with a/the bike.
Do you want a beater to blast around the block to get motorcycling checked off your to do list, or are you looking at a long term investment in keeping the bike ?
If it's the later, starting with a bike that has been cared for is worth the restoration effort.

Your Honda Nighthawk / Re: Black 1992 Honda Nighthawk CB750
« Last post by Adventurer on December 13, 2017, 07:44:13 PM »
Awesome bike. I have the same one bu t does not look as good as that.  Working on it

Thanks, Skelee and welcome to the NHF! You’ll have to post a pic sometime.
General Motorcycle Discussion / Re: Potential purchase (high mileage)
« Last post by mollusc on December 13, 2017, 03:39:32 PM »
That doesn't look like it's in particularly fantastic condition cosmetically.  Might have been dropped on both sides (brake pedal has been scraping the clutch cover indicating that it's probably bent, and I don't know how you'd get that dent in the tank except by dropping it).  The wheels have some rash on them.  Turn signals are aftermarket replacements.  I believe it may be a California model as it has some kind of tank under the fuel tank, above the carbs.
$1000 is not a terrible price, but the seller is probably banking on this being (inexplicably, to me) the most popular colour scheme.  People have taken these engines well over 120k miles with regular maintenance and care, but you probably have no way of knowing the history of this particular machine.
Five years ago I paid $1000 for an excellent condition 1984 model with 21k on the clock, a luggage rack, and engine guards.  I would be cautious with this one, but I wouldn't immediately say no.  Remember that no matter what you buy, with something this old you're going to need to know how to do your own routine maintenance and probably be also ready to dig into forks, clutch, final drive, and more.
Your Honda Nighthawk / Re: Revs hang at 3k
« Last post by ExTex on December 13, 2017, 02:56:25 PM »
Good Idea, Tellz50

But less mess if draining the float bowls before removing the carbs.
I have a pieces of clear tubing that fits over the drain nipple, makes draining into a glass container easy.

Merry Christmas
Your Honda Nighthawk / Re: Revs hang at 3k
« Last post by Tellz50 on December 13, 2017, 02:31:38 PM »
With this trick you won't have to disassemble the carbs, but they will need to come off the bike.
1) Remove the carb rack and drain the float bowls
2) Hook a shop vac up to the engine side of each individual carb (While on) then open the throttle plate and observe the slide's upward movement.
3) Close the throttle plate and observe the slide's downward movement.
4) All slides should have pretty much the exact same upward and downward movement, so if any one of them exhibits something different (Ex. Very little or no movement upwards when throttle plate is open or very quick/slowwer downward movement when throttle plate is closed) you may have identified a problem with the slide, slide diaphragm or slide bore specific to that carb.

I would actually perform a carb sync first, as someone had mentioned already, then the above and if still not fixed perform all your carb cleaning, assembly and setup all over again (throttle cable routing and action checked 3 times over).

Hope this helps!
General Motorcycle Discussion / Re: Potential purchase (high mileage)
« Last post by Quattro695 on December 13, 2017, 01:11:20 PM »
I'm in the Midwest. I've checked out a few other 650s with less than 30k that weren't in better condition than this 700s. I just really like this color combo.

General Motorcycle Discussion / Re: luggager Rack for a Nihthawk S /CB700SC
« Last post by Tellz50 on December 13, 2017, 01:07:44 PM »
Just took a look and there are just under 9hrs left in the auction. 18 bids placed so far and the price is at $124.50 which is well under what I remember these racks going for a few years ago. Good luck to all who are bidding on this.
General Motorcycle Discussion / Re: Potential purchase (high mileage)
« Last post by DesignFlaw06 on December 13, 2017, 10:53:38 AM »
I'd pass on it for $1000.  But it really comes down to how much you're willing to spend.   Not sure where you're located, but winter is usually a good time to buy for states with only 3 riding seasons.   Even in the spring, you should be able to get a 750 with half the miles on it for $1500.  Unless you're in California or Hawaii.
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