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Author: Subject: BEC first start / how to?
TimC

posted on 10/1/17 at 08:37 PM Reply With Quote
BEC first start / how to?

I'm sure that there is a brilliant guide on this somewhere but I just can't find it.

Nearly 7 years after collecting the chassis, I'm almost ready to start my Yamaha R1 engine.

Can folk talk me through the appropriate sequence - it's been nearly a decade since I last went through this.

If memory serves, I should build oil pressure with the plugs out for example but I seem to recall there is more to it than that.

Thanks!






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Andy B

posted on 10/1/17 at 09:20 PM Reply With Quote
Hi Tim
Take plugs out and turn engine over whilst looking for oil pressure.
It won't be a lot at cranking speed just an indication that you have pressure - a couple of psi or so.
If it doesn't come up After a while it May be air locked - you can slacken the oil filter while
Someone cranks it over - you should hear a hiss of Air followed by a dribble of oil - tighten filter and
Crank Again looking for pressure
If it still doesn't show on the gauge you can try pressurising the breather with an airline whilst cranking - not
Massive pressure just 10 or so psi should do the trick
Done the airline trick loads of times and it never fails
Hope that helps
Andy

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sdh2903

posted on 10/1/17 at 09:22 PM Reply With Quote
Plugs out, fuel pump disconnected or fuse pulled, crank over to build oil pressure, once oil pressure ok, plugs back in etc and make fire. Well only internally hopefully

Good plan to have a fire extinguisher to hand just in case.

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adithorp

posted on 10/1/17 at 09:33 PM Reply With Quote
...then put the plugs back sit looking at the start button for a while. Then tell yourself to stop being a wuss and press it!

Give it time to get the oil around before you rev it once it does start.

...and about bloody time!





"A witty saying proves nothing" Voltaire

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TimC

posted on 10/1/17 at 09:57 PM Reply With Quote
Thanks All.

Odds on my heavily modified loom actually working?






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adithorp

posted on 10/1/17 at 10:49 PM Reply With Quote
If it's like everything else I've seen on the car.... Pretty dam good





"A witty saying proves nothing" Voltaire

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chris_smith

posted on 10/1/17 at 10:59 PM Reply With Quote
You all forgot the most important part............first things first is set up the camera for video evidence

[Edited on 10/1/17 by chris_smith]





The secret of success is to know something nobody else knows."

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BenB

posted on 10/1/17 at 11:43 PM Reply With Quote
Aiiiiiiiiiit! Video pleeeeeeeeeeeez
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pekwah1

posted on 11/1/17 at 09:45 AM Reply With Quote
and don't forget to take all rubber handled tools etc off the handy exhaust manifold shelf.....
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