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skinz750

YZ400F cut out

11 posts in this topic

i was out riding some tight single track woodland today on my 99 yzf 400 when it backfired, then Just died. It didn't appear to have overheated but wouldn't start for nearly an hour. Now it's fine.

Do these bikes cut out when they overheat? I'm reluctant to take it out again incase it does it again.

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They have no particular system to make them cut out when they overheat.

What you describe doesn't sound catastrophic.

If it is running OK I would take out out again.

If it was hot, lack of starting could be due to technique, not using the hot start etc.

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It still runs great. I'm all over the hot start lever and have no trouble starting it hot or cold generally.

I've changed the plug and will see if it happens again.

Not sure what else to do other than strip it down.

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I don't think it got wet and it had been running fine for 40 minutes ish before it died so i don't think it was vapour lock. Going out on it again next weekend so will see what hapens then.

Many thanks for your posts.

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