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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

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

could be coil knackered or fuel cap breather blocked

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

Air scoop blocked or filler breather blocked?

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.

Hi checked spark it was fine bright even in the sunlight

JBG584 wrote: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.....

Hi
will try that cheers

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

Petrol cap breather?

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

cheers for help

Bogie wrote: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