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by GeorgeSweety
Mon Aug 12, 2019 4:17 pm
Forum: Technical Discussion
Topic: Help on where to connect this tube
Replies: 10
Views: 9303

Re: Help on where to connect this tube

Green = Float bowl vents, these do not connect to anything, they are just tucked between the carbs and airbox.
Red = Fuel pipe connects to the fuel tap/petcock.
Where are you located?

revell carb 005.JPG
revell carb 005.JPG (133.28 KiB) Viewed 9148 times
by GeorgeSweety
Mon Aug 12, 2019 4:08 pm
Forum: Technical Discussion
Topic: Help on where to connect this tube
Replies: 10
Views: 9303

Re: Help on where to connect this tube

mgendron wrote:fuel pipe?!? meaning to connect on my petcock?!? what I am doing whit the other one?(as seen on my first pics) I connect where? as seen on your image on top of your green circle -

The two thinner pipes are just float bowl vents, they do not connect to anything.
by GeorgeSweety
Mon Aug 12, 2019 2:27 pm
Forum: Technical Discussion
Topic: Help on where to connect this tube
Replies: 10
Views: 9303

Re: Help on where to connect this tube

Fuel pipe, blue arrow, ignore the two circled items.

revell carb 012.JPG
revell carb 012.JPG (175.39 KiB) Viewed 9153 times
by GeorgeSweety
Mon Aug 12, 2019 2:22 pm
Forum: Technical Discussion
Topic: Help on where to connect this tube
Replies: 10
Views: 9303

Re: Help on where to connect this tube

That looks like your fuel pipe that goes to you fuel tap, if you connect it to your fuel tap and fuel pours on your floor have you checked the clamps are tight and the pipe hasn't got splits/perished?
by GeorgeSweety
Sun Aug 04, 2019 6:26 am
Forum: Technical Discussion
Topic: fuel leak at crankcase drain hose
Replies: 4
Views: 5575

Re: fuel leak at crankcase drain hose

If you see fuel dripping again then try tapping your float bowls with a screwdriver handle one at a time to see if it is a sticking float. You may be able to work out which carb it could be (if it is a sticking float) by seeing if a quick tap stops the drip. Its always a good idea to switch the fuel...
by GeorgeSweety
Sun Aug 04, 2019 6:21 am
Forum: General Discussion
Topic: 81 cb650 cv carb brass plug
Replies: 1
Views: 10342

Re: 81 cb650 cv carb brass plug

Sorry Doug, I've only got PD slide carb spares, maybe try ebay?
by GeorgeSweety
Thu Aug 01, 2019 5:08 am
Forum: Show it off
Topic: 1979 CB650; well, mostly
Replies: 6
Views: 13864

Re: 1979 CB650; well, mostly

Hello Chief and welcome. Very nice looking bike, I have one of those in my garage awaiting a refurb so I'm looking for idea's at the moment.
by GeorgeSweety
Sun Jul 28, 2019 2:34 pm
Forum: Technical Discussion
Topic: fuel leak at crankcase drain hose
Replies: 4
Views: 5575

Re: fuel leak at crankcase drain hose

Try removing your side cover and air filter and check for fuel inside your air box.
by GeorgeSweety
Sun Jul 28, 2019 2:33 pm
Forum: Technical Discussion
Topic: fuel leak at crankcase drain hose
Replies: 4
Views: 5575

Re: fuel leak at crankcase drain hose

I have a 1981 CB650 it has just started to leak gas from the crankcase breather systems drain hose when parked after a ride after it has cooled down. Any body have any ideas? If I understand your post correctly it sounds like one or more of your carbs could be flooding, have you got CV or PD slide ...
by GeorgeSweety
Sun Jul 28, 2019 2:05 am
Forum: Technical Discussion
Topic: 81 cb650c backfire on downshift/cruise at 4k rpm
Replies: 8
Views: 7929

Re: 81 cb650c backfire on downshift/cruise at 4k rpm

Yes I get the tight budget thing :( ! Have you checked your spark plugs to see how your mixture is?
by GeorgeSweety
Sat Jul 27, 2019 10:56 am
Forum: Technical Discussion
Topic: 81 cb650c backfire on downshift/cruise at 4k rpm
Replies: 8
Views: 7929

Re: 81 cb650c backfire on downshift/cruise at 4k rpm

Hi jdip and welcome. You have rebuilt the carbs with genuine Honda jets and set them up to factory settings then use K&N air filter and an aftermarket exhaust, I think that may be the cause of your problem. What type of carbs are on your bike, PD 51 slide or CV VB44 carbs? If it has PD 51 slide ...
by GeorgeSweety
Mon Jul 08, 2019 1:17 pm
Forum: Accessories and Apparel
Topic: Highway Foot Pegs
Replies: 5
Views: 14134

Re: Highway Foot Pegs

My Nighthawk is called Ethyl after a tractor I used to drive, I've had her up to 50 but only for a short while as I've honed the barrels (jugs) and fitted new piston rings. If I do need to use a motorcycle on our motorways I'll use my Zephyr 750 :)
by GeorgeSweety
Mon Jul 08, 2019 11:50 am
Forum: Accessories and Apparel
Topic: Highway Foot Pegs
Replies: 5
Views: 14134

Re: Highway Foot Pegs

There's too many bendy bits in the UK to be of much use over here and I'm certainly not going at any motorway speeds (70 mph) on a nearly 40 year old bike :lol:
by GeorgeSweety
Wed Jul 03, 2019 12:05 pm
Forum: General Discussion
Topic: 1982 650 Nighthawk beginning maintenance
Replies: 26
Views: 28442

Re: 1982 650 Nighthawk beginning maintenance

The bike has to be vertical on level ground, stood only on its tires.
by GeorgeSweety
Mon Jul 01, 2019 2:30 pm
Forum: General Discussion
Topic: 1982 650 Nighthawk beginning maintenance
Replies: 26
Views: 28442

Re: 1982 650 Nighthawk beginning maintenance

Here is a link to folsoml's excellent video if it is your gear change shaft oil seal http://youtu.be/UZFFKhXBAw4 . One thing I would add if your gear change shaft is rusty or corroded, get a piece of thin plastic sheet, the kind of stuff that milk cartons are made of, and roll it into a tube, insert...

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