advice needed on pinning power valve
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when you put the bolt through the cap there is a little hole in the cap that I think should have pin it in but its missing
I bought another cap I was told would work this doesn't have a pin either it has a tube shaped part with a slot in that sits in the cap
this is what I have does it simply need a pin to lock it
here is the head
what is this part for -
@dan28 Welcome to the forum man,
Not sure what the problem is... I have little experience with Non-Servo DTR, but I had a pinned power-valve way back when following this assembly.
https://www.yamahamotorcyclespares.co.uk/spares/epcImages/9118/1.jpg
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@Calum said in advice needed on pinning power valve:
Read it, don't understand the problem.
Surely you can just assemble the powervalve and then lock it in place if you so wish to.
If you have the servo and wires then leave them attached in the open position then job done
The problem is I sold the original head that already had the Pv pinned this head came with out a Pv an I didn't take any notice of how it went together
If I put the bolt through the cap an into the Pv shouldn't there be a pin in the cap (shown in photo)that fits into the indent on the side of the barrel stopping the cap from being able to turn
Or am I over thinking it an just need to do the bolt up tight if so then why does the cap an barrel have those indents for a pin to fit in
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I've never actually looked at the setup of a non pulley version.
What's on the inner side of part 20 in the diagram. Looks like it's already fitted to the end of the end cap. Does it have a diamond shape that holds onto the end of the valve itself?
From the parts diagram it doesn't look like there is a separate pin so I would guess not. If it came apart then im sure Yamaha would have listed with it's own part number. So unless your end cap or part 20 is broken then it should all be fine. Try fit it all together and then put your finger up the barrel and try and move the valve.
