Hi all.. Newby here... HEEEELLLPPPP

[PeterT118]

HeHe8rfl@.. Yeah, it was on the right one.. I even sucked on the pipe to make sure fuel flowed before I put the fuel pipes back on.

 

[Wolfie]

Still on now?

 

[PeterT118]

yeah.. As far as I know.. it would have started again, but I had flattened the battery over the last few days. so it was game over..

 

[andyBeaker]

god wendy is that your way to fix every thing with cold start

Just a very easy way of checking whether any motor is running properly other than fuel starvation.

Like many things in life, the simple, tried and trusted methods never change.

 

[ceoils]

This might be a daft suggestion but , a few years ago I had similar symptoms on one of my bikes (can't remember which ) and it turned out the breather in the filler cap was blocked. Don't know if the 'bird has one in the cap or whether it is separate , but its just a thought . :dunno:

to test just leave filler cap open
had same on my first bird but then diaphram went few months after.

I does sound like diaphram to me as if you leave bike a while fuel will seep past the faulty diaphram and fill ur carbs and the pipe giving you start ability, should run maybe 5 mins but if you open throttle will die fast.
A knackered diaphram is a tempermental thing, sometimes it will work slightly giving you limited use.
I went six months on my first bird trying to trace the fault from breather pipes to cleaning carbs /balancing etc, all made bike run better but I always had engine dieing at full throttle going up a local hill.
Eventually the abuse split the diaphram more and resulted in the bike being almost unrideable.
Almost same thing with my 1200 bird as when bought it gave test run was fine but local unknown roads did not really open it up till on way home and at over 8k revs spluttered and died.
I should have realised the problem from my other bird but as didnt use the revs that often forgot about it till was on way to bash and it split completely so would start sometimes but die within seconds.

The picture shown are the parts you get from honda.. the complete housing with diaphram and springs. Mine would not work so removed the diaphram and springs and fitted to my older housing and it worked. the arrow points to the vacuum pipe my NEW one did not have a hole in it .......... and it was an updated part according to the honda man
good luck

 

[Wolfie]

split diaphragm fills up the pot the vacuum pipe goes to. the fuel then seeps past the rings into the sump over time, smell your oil.

 

[PeterT118]

My only worry is that I am barking up the wrong tree... to me it doesn't feel like a fuel related problem any more, the engine just cuts out as if I'd hit the kill switch, no coughing and spluttering, just bang.. off.

 

[PeterT118]

Right... Strange developements..

Tried to start the bird this morning.. no chance

Came home from work today, started first time... Ran for 5 mins or so, then stopped suddenly as usual...

As I stood there staring at it thinking dark thoughts, I noticed smoke coming out from under the seat!!!:cry:

I quickly got the seat off, but by this time the smoke was gone, only leaving a smell of burning electrics..

I started the bike again it started first touch gave a huge backfire then ran sweet as a nut.@tu*

nothing got hot enough to smoke again altho the rectifier (I think) got warm very quickly, but never got overly hot..

I took my chance and took it out for a quick spin... it ran fine for a while then backfired again, but carried on seemingly ok..

Does this give any clues as to what it might befl4g71

Why the smoke?? why the backfire?? Why me?? :violin:

 

[robsbird]

Right... Strange developements..

Tried to start the bird this morning.. no chance

Came home from work today, started first time... Ran for 5 mins or so, then stopped suddenly as usual...

As I stood there staring at it thinking dark thoughts, I noticed smoke coming out from under the seat!!!:cry:

I quickly got the seat off, but by this time the smoke was gone, only leaving a smell of burning electrics..

I started the bike again it started first touch gave a huge backfire then ran sweet as a nut.@tu*

nothing got hot enough to smoke again altho the rectifier (I think) got warm very quickly, but never got overly hot..

I took my chance and took it out for a quick spin... it ran fine for a while then backfired again, but carried on seemingly ok..

Does this give any clues as to what it might befl4g71

Why the smoke?? why the backfire?? Why me?? :violin:

was it cold smoke as the only smoke i know comes from getting HOT.....8rfl@

 

[Wolfie]

Think you need somebody local to take a look, two heads better than one etc. next time you go to start it have the seat of first, that with key in ignition you might see where the smoke it's coming from

 

[andyBeaker]

Ignore Robsbird. He doesn't understand 'Help' section rules and hasn't got a proper Blackbird anyway:-0)

As you say, strange indeed. The backfiring I would guess is just the carbs emptying themselves after the motor has previously cut out.

Start with he basics - get a really bright torch and inspect every bit of wiring you can see. If there was smoke there will be evidence of heat somewhere. fortunatley the complicated bits of wiring are at the front end of the bike so shouldn't be too difficult to visually inspect the rest. Get your head in these as well and use your nose.

Typical Bird electrical fault is genreg/rec failing and taking out the generator while also frying the battery. Not normally with the symptoms you describe though.

Keep posting.

 

[Centaur]

Ignore Robsbird. He doesn't understand 'Help' section rules and hasn't got a proper Blackbird anyway:-0)

As you say, strange indeed. The backfiring I would guess is just the "cylinders" emptying themselves after the motor has previously cut out.
Start with he basics - get a really bright torch and inspect every bit of wiring you can see. If there was smoke there will be evidence of heat somewhere. fortunatley the complicated bits of wiring are at the front end of the bike so shouldn't be too difficult to visually inspect the rest. Get your head in these as well and use your nose.

Typical Bird electrical fault is genreg/rec failing and taking out the generator while also frying the battery. Not normally with the symptoms you describe though.

Keep posting.

I'm with Andy on this. Follow your nose and find the frying wires.

 

[robsbird]

Ignore Robsbird. He doesn't understand 'Help' section rules and hasn't got a proper Blackbird anyway:-0)

As you say, strange indeed. The backfiring I would guess is just the carbs emptying themselves after the motor has previously cut out.

Start with he basics - get a really bright torch and inspect every bit of wiring you can see. If there was smoke there will be evidence of heat somewhere. fortunatley the complicated bits of wiring are at the front end of the bike so shouldn't be too difficult to visually inspect the rest. Get your head in these as well and use your nose.

Typical Bird electrical fault is genreg/rec failing and taking out the generator while also frying the battery. Not normally with the symptoms you describe though.

Keep posting.

typical banker always missing the point .............

as they say there is not smoke with out fire............ my point was there must be some thing getting HOT to make the smoke

bl4hbl4h

 

[PeterT118]

I'm with Andy on this. Follow your nose and find the frying wires.

I couldn't get it to do it again!! I will see what happens tomorrow

 

[PeterT118]

typical banker always missing the point .............

as they say there is not smoke with out fire............ my point was there must be some thing getting HOT to make the smoke

bl4hbl4h

Trouble was by the time i had the seat off it had stopped.. and i couldn't get it to do it again!

 

[PeterT118]

Ok.. It has finally died completely...

12 miles away.. lol

I was almost convinced that it had sorted itself somehow so went for a ride about..

it was doing fine, then started to cut out now and again (but would catch again before I lost any speed).. before I could get home it cut out at low speed and wouldn't start again

When it was cutting out at "lets say" Higher speeds the rev needle dropped to 0 for a second before it went again..

My thinking is the CDI unit! Any takers??

just gotta work out how to get the damned thing back to mine now...sh1tehppns

 

[Duck n Dive]

With smoke from under the seat area I'd have a look at the large plastic connector from the genny to the rec.

That can melt and would produce smoke in an extreme case I guess.

I think (?) that this connector is in the same place on all models....


Left hand side behind the seat cowl ..... sits in a large black plastic cover.


Worth a look at least :dunno:

 

[PeterT118]

Anyone know what a CDI unit looks like... lol

 

[robsbird]

its sitting up by the back light under the seat on the try

with out the yellow sticker.......

@tu*

 

[PeterT118]

Thanks.. I thought that was it..

Is there anyone in leicestershire who could come and swap CDI units just to prove that this is the problem??

Don't want to start buying expensive parts just to find it wasn't that after all!!@tu*