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Valko

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May 12

Posts: 127

Valko says:

high five

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  • Posted 2 years ago (25 November 2012 23:49)

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old(ish)git

Joined:

Apr 08

Posts: 9516

old(ish)git says:

seen it ....

in a Land far,far away....but keep looking. We prefer informative stuff like this though.:smile


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ninjachica

Joined:

Jul 08

Posts: 4337

ninjachica says:

High Five

I still love the Kawasaki one, even though it's old! :biggrin:

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Beelady

Joined:

Jan 10

Posts: 3286

Beelady says:

Me, too.

Still one of my favourites :biggrin:

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KrismusSikpunz

Joined:

Mar 12

Posts: 1286

@Oldish

"in a Land far,far away....but keep looking. We prefer informative stuff like this though.:smile"


 
If your valve clearances should be 0.10 - 0.2mm (inlet) and they are 0.12mm as shown in that vid, would you chance leaving them for another 15,000 miles?

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old(ish)git

Joined:

Apr 08

Posts: 9516

old(ish)git says:

of course Krismus....

seeing as how that falls into the optimum tolerance band.Better to be a little worn and tinkly,than being too tight and preventing the valves closing fully when the engine is hot....That isn't a very good example video,because the guy should be working under better lighting conditions and he seems unsure about which valves he should be checking,but it helps to show people that bike maintenance is not 'rocket science'....I'd have preferred to see him strip it from tank and fairing removal onwards.:smile

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KrismusSikpunz

Joined:

Mar 12

Posts: 1286

Oldish, I was referring to the guy in the vid

His valve clearances are already very near bottom limits at 0.12mm, as we are all aware, on modern overhead cam engines they close up with wear, as against open up as with old pushrod motors.

If I had the bike stripped to that level and the valve clearances had closed up that much, then I would have re-shimmed to take them back nearer to top limit.

That would give me full confidence for the next 15k miles that my valves and seats would not be getting burnt.

(Dealer would not bother I'm sure)

 

Can't understand why he was setting lines to arrows for checking? Just check the cam clearances with the lobes pointing upwards turning as required.

Draw a plan and note the clearances for each valve, if they need re-shimming, strip out and measure shims, do the sum & fit the new shims. Check clearances again after re-assembly.

Like you said oldish, it's not rocket science, just needs a bit of care & attention to detail.

 

Lines & arrows will need setting up before stripping out cams on bucket & shim motors. Always refer to workshop manual for this part of the job.

 

Cam on shim engines can usually be done without removing cams but using a tool for the job.

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