series 2breakdown

[JBG584]

Just back from IOW rally on my series 2 original engine. Had a few problems same thing each time after about 5 miles she just stops, actually it happened 4 times not seized as still kicked over but wouldn't start put in new plug started went then 5 miles approx stopped again some lads even tried bumping no go waited 10 minutes or so started first time then approx 5 miles stopped.I think it got just to hot have you or any of the lads got any ideas

[Warkton Tornado No.1]

Electrical (or electronic) components don’t really fare very well, mounted as they are in the case of the stator, subject to heat & vibration.

For my sins I persevere with points ignition even on a tuned engine in my current ride, which let me down recently. It was running great, & then wouldn’t start after a brief thrash.

I suspected the condenser which it proved to be. So, if I was a betting man....

I doubt you’ll find cheaper, or better, than AF Rayspeed

[lammydave]

could be coil knackered or fuel cap breather blocked

[stephena]

I had the same problem a few weeks ago turned out to be faulty stator sent off to Anthony Tambs all ok now.

[Rich Oswald]

Air scoop blocked or filler breather blocked?

[Fast n Furious]

Assuming that there was no spark and the ignition is points, then I agree with WT1. Most likely the condenser, which can go short circuit when they are old and hot. My mate has a 650Z quacker which does the same thing.

[JBG584]

Hi checked spark it was fine bright even in the sunlight

[Warkton Tornado No.1]

Hi checked spark it was fine bright even in the sunlight

When the condenser fails, you will most likely still get a spark! They rarely fail 'open circuit'. That fools any of us into believing it can't be the problem. They can be fine one minute & bad the next & those intermittent faults are the worst!

When my condenser went recently, there was still a spark with the plug out, & my Mate said it couldn't be ignition, but I've been 'there' too many times now.....

[JBG584]

Hi
will try that cheers

[JBG584]

Hi changed condenser and new plug and points took her out for the first time in a while still exactly the same just dies out after 5-8 miles have to wait 15 min and she will go fine

[Digger]

Petrol cap breather?

[Bogie]

sounds like the coil is breaking down when hot , my series 1 was a pig for that until i found another filso coil

[JBG584]

cheers for help

[Scooterslag]

sounds like the coil is breaking down when hot , my series 1 was a pig for that until i found another filso coil

Yep second on that- had a old V100 sport smallframe which used to do the same