toycoma 
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Location: Southern New Jersey
Bike: 1991 nighthawk 750
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« Reply #75 on: September 17, 2011, 03:13:21 PM » |
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talespin
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« Reply #76 on: September 17, 2011, 07:13:28 PM » |
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Nice job. How is it to ride?
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toycoma
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Location: Southern New Jersey
Bike: 1991 nighthawk 750
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Join Date: May, 2011
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« Reply #77 on: September 18, 2011, 02:16:08 AM » |
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It's ok for short trips. But my wrists and elbows will hurt after a while on longer rides where there isn't a lot of movement. It helps to sit as far forward as possible so I dont put do much weight and pressure on my arms. I never ride it stock though.
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talespin
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« Reply #78 on: September 18, 2011, 02:40:43 AM » |
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It's ok for short trips. But my wrists and elbows will hurt after a while on longer rides where there isn't a lot of movement. It helps to sit as far forward as possible so I dont put do much weight and pressure on my arms. I never ride it stock though.
Well, the purpose of a cafe racer is trips of no more than about three minutes, so comfort's not a requirement. Your bike is the only modified NH I've seen that looks decent to me.  |
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talespin
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« Reply #79 on: September 18, 2011, 02:46:44 AM » |
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I just found this pic of a CB400 cafe racer. Looks very similar to yours!  |
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toycoma
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Bike: 1991 nighthawk 750
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« Reply #80 on: September 18, 2011, 05:50:39 AM » |
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It's ok for short trips. But my wrists and elbows will hurt after a while on longer rides where there isn't a lot of movement. It helps to sit as far forward as possible so I dont put do much weight and pressure on my arms. I never ride it stock though.
Well, the purpose of a cafe racer is trips of no more than about three minutes, so comfort's not a requirement. Your bike is the only modified NH I've seen that looks decent to me. and i knew that going into it but sometime my gf and I go on longer trips. I did 145 miles on it one day. And thank you. Check out cb seven fifty (not 750) cafes. The other countries got the better looking cb seven fifty so they have dual brakes in the front with better shocks in the rear plus rear disc brake and a better looking tank. here is one.  |
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toycoma
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Bike: 1991 nighthawk 750
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« Reply #81 on: September 18, 2011, 05:57:21 AM » |
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DogBunny
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« Reply #82 on: September 22, 2011, 11:02:16 AM » |
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toycoma, very sharp looking cafe. You did a great job, looks much better than what you started with.
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toycoma
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Bike: 1991 nighthawk 750
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« Reply #83 on: September 22, 2011, 11:29:59 AM » |
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thank you. i got some other things that still need to be done but yeah, i think it looks a lot better then what i started with. One of my next mods is to do something with the exhaust. I want to set it up with a muffler that is more under the bike. Like this one.  |
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toycoma
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« Reply #84 on: September 22, 2011, 04:26:11 PM » |
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hutru01
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« Reply #85 on: September 23, 2011, 12:44:25 PM » |
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toycoma
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« Reply #86 on: September 24, 2011, 09:59:56 PM » |
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I want to know his carb and air filter setup.
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Option13
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« Reply #87 on: September 25, 2011, 06:37:19 AM » |
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From here, it looks like he is using a custom adapter to mount two large cone air filters to the stock air horns. This would greatly help straighten the airflow, which is why he can run it without the airbox.
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'84 650 - "Naia" | DDM HID | 700S Rotors | SS Brake Lines
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toycoma
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« Reply #88 on: September 26, 2011, 03:30:01 PM » |
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I need to do some work on this thing instead of posting pics but I can't help myself because of this new app I got on my phone lol  |
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JB1290
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« Reply #89 on: September 26, 2011, 03:54:41 PM » |
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That is looking good!  |
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I'd rather be judged by 12 than carried by 6
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toycoma
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« Reply #90 on: September 29, 2011, 08:06:48 PM » |
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Has anyone ever put a cb900 motor into a nighthawk?? 95 hp would be fun.
PS, i put a new air filter in and wow, nice gain in hp. The old one was so dirty.
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Option13
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« Reply #91 on: September 29, 2011, 09:55:02 PM » |
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I wouldn't think so. It's not like the frame technology in the 750 was advanced compared to the CB900, so you wouldn't gain much other than keeping your old frame (compared to simply swapping bikes).
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'84 650 - "Naia" | DDM HID | 700S Rotors | SS Brake Lines
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ariwhiteboy
Child Psychologist (No, Really)
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Carpe Navitas
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« Reply #92 on: September 30, 2011, 05:09:19 AM » |
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That looks great! |
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What is good Phaedrus, what is not good? Need we ask anyone this?
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toycoma
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« Reply #93 on: September 30, 2011, 12:12:36 PM » |
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I wouldn't think so. It's not like the frame technology in the 750 was advanced compared to the CB900, so you wouldn't gain much other than keeping your old frame (compared to simply swapping bikes).
but i would gain 20 hp. Or maybe I can swap in a cbx750 motor or the cams from that. That makes around 91. |
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Option13
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« Reply #94 on: September 30, 2011, 01:45:00 PM » |
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I would think that you should look into the 750. Heck, the mounts might even be identical if not very similar.
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'84 650 - "Naia" | DDM HID | 700S Rotors | SS Brake Lines
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gammer
Crazy Canuck
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"Hang on lady, we going for a ride" - Short Round
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« Reply #95 on: September 30, 2011, 04:09:50 PM » |
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I looked into the CBX750 engine and the cams share the same part number as the cams on the Nighthawk S.
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Certifiably not certified.
Technical answers based on experience
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toycoma
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Location: Southern New Jersey
Bike: 1991 nighthawk 750
Posts: 71
Join Date: May, 2011
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« Reply #96 on: September 30, 2011, 04:46:38 PM » |
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I thought i read some where (an old review article) that the nighthawks 750 was just a detuned version cbx750. But how much was it detuned. Doubt cams are worth 20 hp.
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toycoma
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Location: Southern New Jersey
Bike: 1991 nighthawk 750
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« Reply #97 on: September 30, 2011, 06:18:14 PM » |
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found the article " The 750 Nighthawk engine is not lifted verbatim from that bike, but the CBX750 is the source of many of the CB750 Nighthawk's components and the engine is essentially the same. " http://www.motorcyclespecs.co.za/model/honda/honda_cb750sc%2092.htmso besides cams, what else could be diffrent? pistons? Higher compression ratio? |
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Davy888
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« Reply #98 on: October 03, 2011, 07:56:50 PM » |
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Nice work. I'm starting a cafe project with the same bike. Thanks for the inspiration.
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Life is better in the wind.
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AmericanClassic
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Bike: '96 NH 750, '81 GL500
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« Reply #99 on: October 03, 2011, 09:55:35 PM » |
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found the article " The 750 Nighthawk engine is not lifted verbatim from that bike, but the CBX750 is the source of many of the CB750 Nighthawk's components and the engine is essentially the same. " http://www.motorcyclespecs.co.za/model/honda/honda_cb750sc%2092.htmso besides cams, what else could be diffrent? pistons? Higher compression ratio? I read in an article a while back that the heads had some detuning done to them. Milder cams, smaller valves, less advance, possibly less compression. All in the name of a smoother, more friendly power band. Personally Id like it to have a little more kick at the higher half of the tach. |
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