Lethal_Threat 
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"Lethal Threat" makes commuting so much nicer.
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« on: June 17, 2008, 10:13:58 AM » |
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I recently picked up a 1982 CB750SC that I found on Craigslist for $700 with 9128 miles on it. The previous owner started converting it into a chopper, but decided to sell it. It has a few issues that I am slowly working through, but for a first bike I think I did ok.    My biggest concern right now is the poor fuel mileage I am getting. I have been told it is probably because of the changes the previous owner made, but not sure everything he did. He obviously put Kerker exhaust, most likely rejetted, and for all I know he might have put 900 cams in it. |
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detdrbuzzard
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« Reply #1 on: June 17, 2008, 10:38:56 AM » |
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hello and welcome to nighthawk forums lethal_threat, i would have bought it for that price. you may be right though. if he didn't rejet the carbs that will cause problems with the stock carbs. i would look for a stock tank, airbox, and side covers
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'75CB750k, '79CB750 super K,
'84aspy '93gl1500se
'79cb750f, '8
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Hondo
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« Reply #2 on: June 17, 2008, 03:33:04 PM » |
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Wild looking tank-  |
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Lethal_Threat
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« Reply #3 on: June 17, 2008, 04:43:38 PM » |
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It is a pretty cool tank.......for a chopper frame. It is really too small for the Nighthawk.
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happycommuter
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« Reply #4 on: June 17, 2008, 04:53:53 PM » |
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Um, what is this disappointing mileage? They're not as efficient as more modern bikes.
Thank heavens you got it before the PO started gunking up the handling. Despite the hideous gap, the seat looks comfortable enough. I have a strong dislike for tanks that repel your knees, but it is ... different. Oh yeah, how many gallon(s?) does that tank take at fill-up time?
Can a 650 owner tell me if the cylindrical things behind the carburetors are stock? Or they foam air filters?
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Puppysnake
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« Reply #5 on: June 17, 2008, 05:40:52 PM » |
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They look like pod filters (oiled foam). I put some on my '86 700S. Not my best idea ever.
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I must retreat to my place of Zen and meditate on this.  |
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DesignFlaw06
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« Reply #6 on: June 17, 2008, 06:03:19 PM » |
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Hopefully you can get her fixed up, and it'll result in a steal in Craigslist.
While I can appreciate the work that goes into choppers, I don't understand the appeal. But to each their own I guess.
Nevertheless, welcome to the forums.
Tim
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'06 Yamaha FJR1300
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detdrbuzzard
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« Reply #7 on: June 17, 2008, 06:26:17 PM » |
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those are pod filters on his '82 cb750sc happy commuter
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'75CB750k, '79CB750 super K,
'84aspy '93gl1500se
'79cb750f, '8
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Lethal_Threat
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« Reply #8 on: June 17, 2008, 07:38:55 PM » |
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I am getting a little bit over 20 mpg, and the tank only takes 2 gallons at fill up. It gets me around my area, but I want to be able to go on longer cruises. As for the seat, it is a HD Sportster seat and is very comfortable. I actually just did a little work on reducing the gap a bit.
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Sideways
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« Reply #9 on: June 20, 2008, 04:42:53 PM » |
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check out this sweet cb chopper!!!  I would do it if i had the skills. |
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Puppysnake
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« Reply #10 on: June 20, 2008, 10:12:36 PM » |
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Um... no, thanks.
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I must retreat to my place of Zen and meditate on this. |
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xxxbotchlaxxx
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I make shiny things look broken... :(
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« Reply #11 on: June 21, 2008, 11:04:54 AM » |
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mmmm no handling lol
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Dustin LeBlanc
The cheapest nighthawk owner alive!
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Lethal_Threat
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« Reply #12 on: July 08, 2008, 10:30:21 AM » |
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Just wanted to update this. My bike is now charging, going wide open throttle like it was meant to, and getting 38 mpg on longer cruises.  |
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gammer
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« Reply #13 on: July 08, 2008, 10:46:36 AM » |
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check out this sweet cb chopper!!! I would do it if i had the skills. Yep...that is either gay, or not strait.  |
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Certifiably not certified.
Technical answers based on experience
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Lethal_Threat
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« Reply #14 on: August 08, 2008, 11:28:22 AM » |
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Updated picture showing the stock tank I picked up and remounted seat.  and the way it was when I bought it. |
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detdrbuzzard
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« Reply #15 on: August 08, 2008, 12:21:46 PM » |
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i'll guess that it holds more fuel with the stock tank on it, be patience and you will find the side covers
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'75CB750k, '79CB750 super K,
'84aspy '93gl1500se
'79cb750f, '8
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Lethal_Threat
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« Reply #16 on: August 08, 2008, 12:24:09 PM » |
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i'll guess that it holds more fuel with the stock tank on it, be patience and you will find the side covers
Holds twice as much, and I am averaging around 35 mpg now that everything is fixed. |
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Krtismo
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« Reply #17 on: August 08, 2008, 03:25:25 PM » |
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Is that a CX500 tank?
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1982 750SC Nighthawk
1982 650SC Nighthawk
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Puppysnake
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« Reply #18 on: August 08, 2008, 09:36:07 PM » |
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Much better.  |
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I must retreat to my place of Zen and meditate on this. |
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Lethal_Threat
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« Reply #19 on: August 09, 2008, 07:42:39 AM » |
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Is that a CX500 tank?
The auction I bought it off of said it was either off a CB900C or CB750C. |
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Krtismo
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« Reply #20 on: August 09, 2008, 12:49:46 PM » |
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I guess this was the tank I was thinking of.  |
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1982 750SC Nighthawk
1982 650SC Nighthawk
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xxxbotchlaxxx
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I make shiny things look broken... :(
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« Reply #21 on: August 09, 2008, 03:29:51 PM » |
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looks much better
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Dustin LeBlanc
The cheapest nighthawk owner alive!
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