Search found 423 matches

by GeorgeSweety
Tue Jan 07, 2020 2:38 pm
Forum: General Discussion
Topic: 1981 CB650 Air cutoff valve
Replies: 3
Views: 142

Re: 1981 CB650 Air cutoff valve

Most people bypassed them and put a normal gravity fed fuel tap on the bike as they were always causing problems. They were sometimes affectionately know as SOS valve aka Spawn Of Satan.
by GeorgeSweety
Mon Dec 30, 2019 5:23 pm
Forum: General Discussion
Topic: Why does my light switch have 3 positions?
Replies: 3
Views: 161

Re: Why does my light switch have 3 positions?

Hi JJ, if you want a switch to turn your lights off then look for a right hand switch gear from a UK Honda CB650, not too sure about European bikes but I know the UK bikes have a lights ON/OFF switch. You won't even have to touch the wiring as the UK switch plugs straight in to the US wiring in the ...
by GeorgeSweety
Fri Dec 20, 2019 2:06 am
Forum: Technical Discussion
Topic: Speedo suddenly stopped working.
Replies: 2
Views: 136

Re: Speedo suddenly stopped working.

Totally remove the cable and pull the inner cable out to check that it hasn't snapped first.
by GeorgeSweety
Wed Dec 18, 2019 5:49 am
Forum: Technical Discussion
Topic: Almost starts with accel pump but won't stick
Replies: 3
Views: 158

Re: Almost starts with accel pump but won't stick

BTW, I wouldn't try running any motor without the pipes or airbox on but that's just me, engines are designed to work a certain way so that's what I do, then if something goes South I know (hope :oops: ) its not something that I've done.
by GeorgeSweety
Wed Dec 18, 2019 5:44 am
Forum: Technical Discussion
Topic: Almost starts with accel pump but won't stick
Replies: 3
Views: 158

Re: Almost starts with accel pump but won't stick

Hi JJ, sorry for not replying sooner, its that time of year when there's so much other stuff happening. So you swapped your head with another one because you buggered up a plug thread, is that correct? Just swapped the whole head and changed nothing else? Did you check the valves in your "new&q...
by GeorgeSweety
Mon Nov 25, 2019 11:09 am
Forum: Technical Discussion
Topic: Digital speedometer RPM install
Replies: 6
Views: 1086

Re: Digital speedometer RPM install

Hamman wrote:Thanks, yes it works great! Nice having something updated. Now to find some 82 carbs :)

Why do you need 82 carbs? weren't there any with the bike when you got it?
by GeorgeSweety
Wed Nov 20, 2019 11:21 am
Forum: Technical Discussion
Topic: Digital speedometer RPM install
Replies: 6
Views: 1086

Re: Digital speedometer RPM install

Hamman wrote:Thanks mate, I figured it out. The speedo has two settings for single cylinders and multi (2-4) cylinders. I was able to tap into the yellow (+) coil wire and it works great. Thanks!

Nice one Hamman, glad you sorted it :D
by GeorgeSweety
Sat Nov 16, 2019 3:27 pm
Forum: Technical Discussion
Topic: Digital speedometer RPM install
Replies: 6
Views: 1086

Re: Digital speedometer RPM install

Hi Hamman, have a look at this, its a conversion on an 81 Suzuki but its all I could find for now. Hope it is some help or good for ideas. Regards, George.

https://www.youtube.com/watch?v=u_xmU0d1T0o
by GeorgeSweety
Sat Nov 16, 2019 2:57 pm
Forum: General Discussion
Topic: Carb rebuild kit for PD51A
Replies: 4
Views: 673

Re: Carb rebuild kit for PD51A

Hi ekos, try CMSNL but you should sit down first, not cheap.
https://www.cmsnl.com/honda-cb650-1979- ... dBT2dL7QnR
by GeorgeSweety
Fri Nov 15, 2019 5:50 pm
Forum: General Discussion
Topic: Carb rebuild kit for PD51A
Replies: 4
Views: 673

Re: Carb rebuild kit for PD51A

Hi ekos and welcome. Where are you located? In the UK there are limited options for CB650 parts, David Silver or ebay. I bought some carb rebuild kits from ebay and I had to punch a new hole in the carb top gaskets, the o-rings didn't fit anything and I didn't trust any of the brass parts in the kit...
by GeorgeSweety
Tue Oct 22, 2019 3:08 am
Forum: Show it off
Topic: My "new" 1980 CB650
Replies: 16
Views: 16297

Re: My "new" 1980 CB650

Nice, hope you get it sorted. I've got to replace the cylinder head, cam and rocker box on mine due to a PO managing to get some crap in the cam bearing face, it has destroyed the cam and both bearing seats. I'm actually looking forward to doing it though :D
by GeorgeSweety
Mon Oct 21, 2019 5:30 am
Forum: General Discussion
Topic: Anybody know where to get good/affordable replacement gauges for an 84 cb650
Replies: 4
Views: 4221

Re: RE: Anybody know where to get good/affordable replacement gauges for an 84 cb650

Love mine but the speedometer does not work and is kinda busted up. Having trouble finding compatible gauges online. Any help would be appreciated. https://uploads.tapatalk-cdn.com/20180129/b05e5c8e42d90018ccca9a9e24c353f4.jpg Sent from my LGL84VL using Tapatalk Logan, if you haven't already gotten...
by GeorgeSweety
Mon Oct 14, 2019 3:27 am
Forum: Accessories and Apparel
Topic: Looking for 1980 tank decals
Replies: 1
Views: 1424

Re: Looking for 1980 tank decals

Hi Tom and welcome. Unfortunately I have only ever seen tank decals for the CB650Z and Nighthawk models on ebay but that is here in the UK, your model of 650 is very rare over here. What about using pinstripe tape?
by GeorgeSweety
Sat Oct 12, 2019 2:29 am
Forum: Technical Discussion
Topic: Hard to start, great when running
Replies: 2
Views: 500

Re: Hard to start, great when running

Just a stab in the dark here but is your air filter blocked? Have you ever replaced it?
by GeorgeSweety
Sat Oct 12, 2019 2:17 am
Forum: Technical Discussion
Topic: Cylinders 3 and 4 are not firing.
Replies: 1
Views: 315

Re: Cylinders 3 and 4 are not firing.

Hi Tommy, you say that there is fuel in your carb bowls but is the fuel getting through to the combustion chamber? After trying to start the bike have you removed the plugs from 3 and 4 to see if they are wet with fuel? If there is no fuel on them I would suspect either blocked jets or fuel rail.

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