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needle heights

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bluemouse1006:
hi
sure ive seen this on here before but anyone have the tech sheet that shows the needle height (slot) for certain main jet sizes ?
I've had probs starting before and moved the needles up one slot which mad some difference but over the winter she seems to be messing about again im stripping the carbs again and would like the definitive slot when i come to strip them again

Thanks again

Amos 8)

K2-K6:
I've not got the info you've asked for but always thought it happens like this; all needles start in the centre slot of usually five, if you need to fine tune for local conditions then you'd pull them up or down to get the engine running well.

If you get to either end slot and find it impossible to get the correct running, then this would be an indication that the main jet was the wrong size and so, you'd then start with a new main jet and put the needle back into the centre slot to start the process again.

If it's starting that's the main problem, then you'd usually be looking at the idle jets/screws and float hieghts and get them working well before you looked at main jetting.

Seamus:
This help?

SteveD CB500K0:
That's from Mike Nixon's site Seamus.

I speak to him reasonably regularely although he's more active on the US site.

His website www.motorcycleproject.com is well worth a good trawl!

Seamus:
Thanks Steve. I sourced thart a good while ago and filed it away for info. Appreciate the link to the website though

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