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Post by BritPete on Dec 27, 2017 21:02:00 GMT
I second Terry - Even the disc the silver is behind  |
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Post by bodie on Dec 27, 2017 21:04:19 GMT
Not into rock/ head banging music more of a new romantic myself  Although I did follow the Clash for a year or so when on a rebel year at school  |
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Post by BritPete on Dec 27, 2017 21:21:58 GMT
I was born old, love 60’s 70’s and 80’s lost the plot after that
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Post by Deleted on Dec 27, 2017 21:33:38 GMT
I'm gonna hit the highway like a battering ram On a silver-black phantom bike When the metal is hot, and the engine is hungry And we're all about to see the light Nothing ever grows in this rotting old hole And everything is stunted and lost And nothing really rocks, and nothing really rolls And nothing's ever worth the cost  |
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Post by BritPete on Dec 27, 2017 21:55:20 GMT
I'm gonna hit the highway like a battering ram
On a silver-black phantom bike
When the metal is hot, and the engine is hungry
And we're all about to see the light
Nothing ever grows in this rotting old hole
And everything is stunted and lost
And nothing really rocks, and nothing really rolls
And nothing's ever worth the cost
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Post by listey on Dec 28, 2017 9:10:40 GMT
I read it that the fuel pump has breather pipe (presumably tending to produce a low pressure area) and that the carb breather pipe is nearby . If the carb breather releases enough fumes it could be sucked up into the "open" part of the fuel pump containing the (sparking) points ? IE perhaps ironically the fuel that catches fire is not directly linked to the pump - that is just the ignition source . But why it's concentrated in that corner of the airbox ?............... Having been back with the bike for a few days and inspecting everything thoroughly like a fire investigator (cue member Noddy aka Jim).....to me this is closure. The importance of that breather pipe is now fully understood. Bike was on full choke. Chucked out excess 'rich' vapour from right hand carb breather - then sucked up by 'curled up' fuel pump breather and ignited by the points system in the pump. Shot back out down the tube starting fire in lower fairing......in turn the vapour caught fire at where it was still spraying out the rich vapour (under fourth carb along) thus started the fire above that region in the airbox. The evidence is there. Thank you all. Just before you put this to bed Nick, one thing's worrying me. have you checked the fuel tap diaphragm? I think you're right about the fuel pump causing ignition, but I'd have thought that vapour would have burned with a quick flash and then gone. You seem to have more damage than that, signs of a more prolonged fire. A faulty tap would constantly supply fuel to the carbs, needle valves should then cease flow once bowls are full but a sticky float or worn needle would then allow it past the bowls, out of the breather and also possibly into the engine (does your engine oil smell of petrol?) I might be barking up the wrong tree but its possibly worth a check. Hope the rebuild's going well. |
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Post by Deleted on Dec 28, 2017 9:53:27 GMT
Hi Listey,
Thanks for that. It's all conjecture as Boje said but what I wrote above was the only explanation I can see from all the evidence but of course it is not 100% necessarily what did actually occur - so any continuing advice / suggestions are extremely welcome indeed. Hoping one day someone will see the thread and think 'hang on, this happened to my jellymould - and this is what I found'.
So coming back on what you said, if the fuel tap diaphragm was faulty, would there not have been a prior smell of petrol in the garage before the fire? It is something I could also replace of course if you think it may have been a factor.
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Post by Deleted on Dec 28, 2017 10:59:14 GMT
P.S - behind the actual tap the petcock seems to be similar to a Superdream one in design.....no actual diaphragm as far as I can see.
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carlthebandit
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Post by carlthebandit on Dec 28, 2017 11:03:29 GMT
Hi Nick, I have been reading this thread with great interest, just to let you know I have not made any comments as I have no good technical knowledge to give on this matter. I’m pleased to hear the parts are coming in at the right cost and hope to see it built back up very soon. Maybe then we can ride them when the spring/summer arrives.
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Post by Deleted on Dec 28, 2017 11:39:21 GMT
Hi Nick, I have been reading this thread with great interest, just to let you know I have not made any comments as I have no good technical knowledge to give on this matter. I’m pleased to hear the parts are coming in at the right cost and hope to see it built back up very soon. Maybe then we can ride them when the spring/summer arrives. Thanks Carl and for sure we will.
Biggest ball ache left is getting a replacement left lower fairing done in the right colours. As luck would have it this very morning I found the correct fairing decal on ebay (Spain) as the one I 'saved' may not re-apply well. I do have the fairing but just need my painter to do the actual paint job on it.
Hope she'll be back on the road certainly by the Spring. (Mini fire extinguisher at hand for the first few rides).
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The Fire
Dec 28, 2017 14:23:57 GMT
via mobile
Post by listey on Dec 28, 2017 14:23:57 GMT
P.S - behind the actual tap the petcock seems to be similar to a Superdream one in design.....no actual diaphragm as far as I can see. Ok so no diaphragm in tap then. Wasn't sure if it had one or not. There would be a vac pipe to the tap if so. Still suspect a sticky float or poor seals / o rings causing fuel to leak though. (May only occur under under pressure with pump running) |
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Post by Deleted on Dec 28, 2017 15:34:15 GMT
Certainly agree.
Carbs will need a going over for piece of mind too.
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Post by Somersetdreamer on Dec 31, 2017 16:05:50 GMT
Yesterday on my delivery I was chatting to a fireman that I deliver to & I get on well with him as its surprising when you meet people who have motorcycles it's like you've been mates for years.... Anyway my point
I mentioned the fire you had Nick & he was interested to hear about it as like most people we do start our machines in winter & let them tick over to bring them up to temp, unsupervised & in our garages & sheds & this fireman is no different, he has several bikes all parked closely together & he runs each of them from time to time & is just pottering about nearby,
He will change his ways now as it was a wake up call for him as well he has a mixture of old & modern bikes & if one went up the rest would follow.
So you Nick bringing your experience to us all will have a positive outcome & may save a fire in future, the fireman has said he will get me a fire extinguisher to keep near my bikes as well so I'm pleased I mentioned it to him
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Post by Deleted on Dec 31, 2017 17:38:56 GMT
That's good news and when I think of the whole incident and how it could of been so much worse it still shocks me, Rich. If it saves at least one outcome like this the whole thread has a very valid point.  |
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Post by Deleted on Feb 10, 2018 19:50:07 GMT
Need to man up and press the starter button after few months of corrective 'fire damage' works. There are around five fire extinguishers in the garage now so what am I worried about anyway?.....I control this bike, it does not control me.......right?  |
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Although I did follow the Clash for a year or so when on a rebel year at school 
