Topic: Honda CBX 650 E

[HenrikPoulse]

Hey guys

I own a 1987 Honda CBX 650 E

Identical to this one but a different color scheme
http://www.bikez.com/motorcycles/honda_cbx_650_e_1987.php

Since its a bike I have imported from Germany (I'm from Denmark) it has had its effect reduced to around 50 bhp. (quite common in Germany due to insurance prices on 50+ bhp bikes)
Does anyone here know how a 1987 cbx 650 E is reduced? I know of three different common types of reduction method.
1. Different camshaft/s I sincerely do not hope this is the case as I wouldn't like to take apart an enginge running that sweet.
2. Limited throttle travel in carbs (this should be a simple manner of pulling out a few discs from the carb in order to allow more travel in the carb)
3. plugged exhaust pipes, (these should be either changed or drilled out.)

How would I identify the method of reduction in my bike?

Im currently planning on removing the ugly square headlight/dash and replace it with nice round ones. This will of course reguire some changes to the wiring of the bike. Does anyone know where to find a diagram for my bike. Im not quite sure if the CBX 650E and the CB650SC is the same bike they are both nighthawks but in my papers its only mentioned as a honda 650 so no help there..

Any knowledge on these bikes would be appreciated..

Im planning turning it into a cafe bike. Going to add clubmen bars, cafe seat (homemade) new side panels, an a much more simple wiring (Lots of things I dont need, I need the bike to run, charge, all the lights, and two indicators, oil pressure, and neutral) Everything else can go.

Ill post some pics of the progress when there is some :-)

Henrik

[SteveD CB500F]

Hello Henrick and welcome.  Your bike is a DOHC rather than an SOHC but there are members here who own and love Nighthawks.

I'm sure that they'll be along soon.

[HenrikPoulse]

Hey Steve.

You right it is a DOCH, I have owned both a CB500F and a CB550F previously and loved both bikes.

When this one has ondergone some changes I will love it to. its just to damn ugly with the square eighties parts :-)

But it sure is nice to drive..

Henrik

[HenrikPoulse]

I just think its a shame that a 70+ bhp bike is limited to 50 bhp

But I think it is very difficult to see where the limitation is without having the bike in front of you...

Henrik

[crazypj]

Do Oil and filter change.
It has hydraulic adjusters.
If they get dirty oil they stop working and the only cure I've found is a new set.
Basically its a de-bored 750 (or overbored 550?)
Had a couple of issues with 750 running #2/3 big end bearings. German market has some strange rules about capacity/HP.
 PJ

[HenrikPoulse]

Crazy

Thanks ill be sure to do that.

The bike has been more or less stationary for two-three years now, so its in great need of a tune-up

I plan to run a few litres of oils through it ower a few hundred miled w- a new filter and do another oil change after that.

Henrik

[HenrikPoulse]

Anybody know which speedo/tach is compatible with the CBX 650E? the tach i guess just have to be a digital one since its presently connected to the CDI module.

The speedo however is a different story, anyone know if the mechanical link is a ratio 4:1 or something like that?

Henrik