Is there a specific amount the valve is held open by the decompression mechanism on any big bore single?
It's not much...
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As little as possible and it…
As little as possible and it still work as a decompressor, that reduces the risk of say a stiff acting cable leaving the valve slightly open and burning the valve.
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Valve lifter
Will someone please tell me or send me a photo of the cable routing to the lifter shaft?
Mine seems to come in from the rear which makes the run to the handlebar very awkward.
Thank you.
Richard
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Valve lifter cable comes in…
Valve lifter cable comes in from the front. I'll attach a photo tomorrow. To late to get out in the shed tonight.
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This is how I run the valve…
This is how I run the valve lifter cable on my singles (this is a 500T). The inner cable goes to the adjuster and the outer cable to the valve lifter arm. This gives a nice easy and short route to the valve lifter lever on the handlebar. The spring in this photo is not the correct one , it should be a volute type spring, i.e. like the one on a pair of garden secateurs. I don't know if this was the original cable route but seems the best one to me.
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Below my arrangement on on a…
Below my arrangement on a Featherbed Single.
In the search for jobs to do I am presently in the course of removing the lifter shaft to grind in a groove for a thin O-ring to stop the slight leak shown.
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Thank you all, I know how it…
Thank you all, I know how it should be set up now.
I'm not sure I have the correct cable, I'll check using your photos, tomorrow.
Thanks again.
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... just a few thou and I was surprised how such a small amount had such a significant effect.