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GP100 possibly overheating

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Milo
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PostPosted: 12:38 - 27 Feb 2005    Post subject: GP100 possibly overheating Reply with quote

Was on my way home last night (in freezing temperatures) and I was aware that I was smelling that hot smell at traffic lights (if you know what I mean) but I carried on regardless.
A few miles down the road it just cut out while driving along and wouldn't start for 5 minutes.

I gingerly rode the rest of the way home though it seemed to be running fine.

It's the furthest I've been on it since the rebuild 370 ish miles ago and I was going quite quickly though in the freezing temperatures could it really have overheated?

If so then it's probably something like the mixture.

Any ideas much appreciated!
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Retro-Man
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PostPosted: 14:07 - 27 Feb 2005    Post subject: Reply with quote

because its your first bigger ride since the rebuild I would suggest it could be product burn off you are smelling rather than anything wrong .
Check everything over and take it out again, if the smell has dissipated then don't worry.

have you checked your oil level as this is important on an air cooled bike..
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stinkwheel
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PostPosted: 14:18 - 27 Feb 2005    Post subject: Reply with quote

The gearbox oil isn't all that important on a 2-stroke, as long as there is some in. The 2-stroke oil is critical as is the fuel air mix.

Best thing to do is check the sparkplug electrode colour. Brown=good, white or scorched=bad.
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Retro-Man
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PostPosted: 14:27 - 27 Feb 2005    Post subject: Reply with quote

My mistake I assumed that bike to be 4T
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Milo
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PostPosted: 14:52 - 27 Feb 2005    Post subject: Reply with quote

The smell's not really a burning smell or anything. Hard to describe I suppose.
I'll check the plug but will also check the mixture.
2t oil level's fine - I check that frequently.

Cheers.
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stinkwheel
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PostPosted: 15:19 - 27 Feb 2005    Post subject: Reply with quote

Milo wrote:

2t oil level's fine - I check that frequently.

Cheers.


Just make sure it is going down though. If the oil line was gummed up you could be riding with next to none. You can check by briefly and carefully loosening the oil pump end of the oil pipe so a tiny air bubble is drawn in then watching for it moving along the pipe when the engine is running. Also check the setting on the oil pump, if you have had the engine out things might have 'settled' and the tension on the cable may have loosened off a bit.

You will still need to take it a little easy after 3-400 miles from a major rebuild on a 2-stroke designed 25 years ago as the engine is just beginning to get itself run-in. I would be gradually building it up to be flat out at around maybe 1000miles.
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I did the 2010 Round Britain Rally on my 350 Bullet. 89 landmarks, 3 months, 9,500 miles.
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