Bike cut out and will not start

[Sable]

Sinnis Trackstar from 2012 with a Suzuki GN based engine at about 44,000 mile.

Wednesday morning on the M25 the engine cut out on the M25 at max revs. I got to the hard shoulder, put the bike onto reserve with choke on, after a few minutes it started up. It was boggy for a couple of minutes and cut out again twice before I got off the M25. I then filled the bike up, with BP 97, and although I put £7.65 of petrol in, I do not think I ran out of petrol. I usually fill up £8.50-£9.

I took a long slow route to work, mostly 30's to 50's and aside from an occasional feeling the engine was down on power it was fine.

I made it home 20 miles up the A406 and A40/M40 without incident. Thinking it was just a low petrol thing I headed out yesterday morning to work up the A40. I managed 3 mile and when I had the throttle fully open the engine cut out and wouldn’t start again.

A long push home and many attempts at starting the bike later.

I can hear the starter working when I press the ignition switch but the engine will not start.

I can see the spark on the spark plug but it looks yellow not blue. I tried an old spark plug I had replaced that was not worn out and I see the same yellow spark? Did try to start it too many times on the way home and may have run battery down.

I put the spark plug in, removed the plug cap, pressed ignition, took spark out and it had a dry tip, from what I understand it should be wet?

Where do I look now?

[Rogerborg]

[Sable]

[unitynotsocri...]

44,000 miles.......its already defied the laws of physics!
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nearly a normal tax paying tosser.......with ferrileness suzi100,cg125,cb125scb100n,cb175,cd100,cj250t,kh250,c15,125 bantam,super 6,rickman gs750,xt500,250rs,dt175,lifan125,dolomite1850,metro,Morris220ld,morrisfg,leyland princess,range rover,corsa,vw camper .now struggling with legs. MORE ORDER = MORE CHAOS

[Sable]

Could not get battery charger yesterday, got one this morning, 2 hours charge and I find my multi meter has also chosen this weekend to die.

Has given battery life, but I cannot check the current.

Tried ignition still hear start and no start up. Spark off plug is still yellow not blue.

Checked all wiring connections I could find, nothing physically looked untoward. Earth looks fine.

Tried tapping the carb, and there is petrol coming out of tank. I do quite firmly believe this is an electrical issue though.

It is now pissing down with rain, and I am now dreading 5 hours a day on public transport for a week.

[Sable]

Oh dear.

I figured as it was going to be sitting in my garden this week until I fixed the electrical issue I would shove it into the corner and cover it up.

I noticed the oil glass looked awfully clear while putting the cover on. Odd. I only filled that up the other day. A glance and wiggle later and I realise underneath where the 3 nuts go in holding the plug and filter up 1 is loose, 1 is missing, and the other is present.

I let the cold oil out and barely get a dribble.

I am guessing that’s a seized engine.

If anyone wants me I will be sorting out a push bike and crying in the corner.

[Pigeon]