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Offline nickboy

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Valve gaps assistance
« on: 25 January, 2020, 09:45:26 PM »
Hi all.
I'm half way through doing the valve gaps on my 2012 1050 Tiger- I have everything stripped down and have the measurements and existing shim sizes.
What I would really appreciate is for someone to have a quick glance at my numbers to see if they make sense. In other words, have I added and subtracted where I am supposed to?! And have I made the adjustments the correct way?! It's been a long day and the numbers are starting to join together!

Exhaust  0.2 - 0.3 range but aiming for 0.28
Cyl1
Gap  /  Shim currently fitted  /  Replace with
0.18  /  2.50  /  2.40
0.20  /  2.48  /  2.40
Cyl2
0.21  /  2.48  /  2.40
0.21  /  2.48  /  2.40
Cyl3
0.21  /  2.48  /  2.40
0.21  /  2.45  /  2.40

Intake range 0.1 - 0.2
Cyl1
0.17  /  2.75  /
0.13  /  2.78  /
Cyl2
0.15  /  2.78  /
0.14  /  2.78  /
Cyl3
0.15  /  2.78  /
0.13  /  2.78  /

I'm thinking to leave the intake as they are but the exhaust I would definitely prefer them all towards the top of the range.
I rechecked the low one after leaving it over night and turning the crank over again to make sure i was reading it correctly.

Any thoughts and recommendations would be greatly appreciated.
 :465:
Thanks for reading!
« Last Edit: 25 January, 2020, 10:09:12 PM by nickboy »

Offline t_revs

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Re: Valve gaps assistance
« Reply #1 on: 25 January, 2020, 11:13:11 PM »
Hi mate
This is what I used
https://tinyurl.com/rvu6w3d
its a free online shim calculator, worth filling in to check your measurements.
Go to Start - Measurements, at top left menu bar.
Fill in gap measurements and shim numbers, make sure target clearances are correct at top right.
Go to Start - Measurements - Calc.
The Calc page will tell you what you need.
To save your calculations for another day click on Start, look down the page to Make Short URL, in middle of page look for https://tinyurl.com/*******
and either copy to clipboard or open it and bookmark the new window.
Piece of piss.
Your lucky to get away with 240's as new shms I think are in .025 increments, Triumph must have a sh#t load of .0021 increment shims.
Hope this helps
Cheers

Offline TCC

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Re: Valve gaps assistance
« Reply #2 on: 25 January, 2020, 11:24:43 PM »
*Originally Posted by nickboy [+]
Any thoughts and recommendations would be greatly appreciated.Thanks for reading!

nickboy, you're spot on as far as I'm concerned.

Because you only need 2.40 shims check them to make sure they are all 2.40 in case they're from different batches which can lead to minor variations (I'm talking really minor).

Offline Paul2bikes

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Re: Valve gaps assistance
« Reply #3 on: 26 January, 2020, 08:38:30 AM »
Aye nick, as TCC, yer spot on there with the exhausts, I'd also adjust those inlets that are below mid anorl while in there, then with all above mid I'd forget it for 20k miles. My experience is that the inlets close up more then the exhausts, not so much in your case.

I'd mic up the new shims before fitting & re-check the gaps after. I've had one shim that was marked wrong size, I felt it on the counter in the dealers, the desk guy wouldn't have it until I got him to put a mic on it. So if yer getting um from a dealers, take yer mic with ya, save ya going back.
The greatest deception men suffer is from their own opinions.
Leonardo da Vinci

Offline nickboy

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Re: Valve gaps assistance
« Reply #4 on: 26 January, 2020, 12:13:10 PM »
Thanks very much for those replies. Just what I needed- that second, third and fourth opinion to give me the confidence to carry on!

Using that table is a good help to back up my thoughts too.

Paul, you are right. It would be daft not to replace the intakes while it's all open. If I didn't I would just spend the next year wondering, what if..!


Offline Ukwes

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Re: Valve gaps assistance
« Reply #5 on: 27 January, 2020, 08:39:02 AM »
I've had one shim that was marked wrong size, I felt it on the counter in the dealers

Was it 1mm out or have you got micro sensitive fingers?
Other bikes: 2017 Speed Triple R, 2010 Street Triple R,  ZXR 400 race bike for track days and Fantic 250 Casa for green lanes, and a Yamaha TDR250 for investment fun

Offline Paul2bikes

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Re: Valve gaps assistance
« Reply #6 on: 27 January, 2020, 09:40:47 AM »
*Originally Posted by Ukwes [+]
Was it 1mm out or have you got micro sensitive fingers?

Try it, put two together on a glass top, feel a gnats dick difference with a finger nail.
The greatest deception men suffer is from their own opinions.
Leonardo da Vinci

Offline nickboy

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Re: Valve gaps assistance
« Reply #7 on: 28 January, 2020, 05:43:35 PM »
*Originally Posted by Paul2bikes [+]
Try it, put two together on a glass top, feel a gnats dick difference with a finger nail.

I'll be sure to try that WHEN they finally arrive!

Offline Paul2bikes

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Re: Valve gaps assistance
« Reply #8 on: 28 January, 2020, 06:32:46 PM »
*Originally Posted by nickboy [+]
I'll be sure to try that WHEN they finally arrive!

 :028:
The greatest deception men suffer is from their own opinions.
Leonardo da Vinci

Offline Paullie

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Re: Valve gaps assistance
« Reply #9 on: 28 January, 2020, 10:31:08 PM »
*Originally Posted by Paul2bikes [+]
Try it, put two together on a glass top, feel a gnats dick difference with a finger nail.

Is that the well-known donkey-gnat?