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What is the correct settings for inlet & exhaust valves?

What is the correct settings for inlet & exhaust Valves ?
Any other tips for doing this job properly as we have no local KTM dealer.

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.008 on both intake and exhaust.

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Posted on Jun 12, 2010

  • Woods Goat
    Woods Goat Jun 14, 2010

    Be sure to do all valve adjustments with a cold engine. Your engine uses the older style screw and jamb nut adjustment, so adjustment is pretty straight forward. Set motor at top dead center and adjust until you feel a light drag on the proper feeler gauge. Double check by trying the next larger blade. It should not fit. Make sure to snug up the jamb nuts before closing everything up.

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there is a method but you will have to have an understanding of valve timing
in an engine regardless of number of pistons when number 1 piston is TDC not firing, then the exhaust valve will be open and ready to close and the inlet valve will be closed and ready to open
so bring the piston up and near tdc
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Whats the worst that could happen if I've adjusted valves incorrectly?

If the valves are too tight, they don't fully close. That can "burn" the valves, causing an expensive repair job to replace the valves. Too loose will make tapping noises and eventually can wear the cam.

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Truck cummings 9800 valve settings

On the Celect,you adjust valves & inj on same cyl.The mark A is now 1-6,B is 2-5, & C is 3-4.Valves are Int 0.014 & Exhaust is 0.027.The injector you hand tighten screw until injector plunger bottoms out.Back screw out 2 flats,ie turn corner of lock nut to align with the rivet in the rocker lever(pushtube side),then back out screw two "corners" then tighten the jam nut down.Adjust the Injector first,then the valves.
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On the STC,you adjust valves & inj on same cyl.The mark A is now 1-6,B is 2-5, & C is 3-4.Valves are Int 0.014 & Exhaust is 0.027.The injector you torque to specs to bottom injector plunger.Then tighten the jam nut down.Adjust the Injector first,then the valves.
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Im trying to replace the pushrods and i dont know what valves are the intake valves

I assume it is a V6 engine if so the valves are as follows , on each head the first valve is the exhaust then two inlets then exhaust then inlet & the last one is exhaust.....hope this helps......cheers.

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Hi, the points gap is 14 to 16 Thou. Inlet valves 4 thou, exhaust valves 6 thou. I dont know the settings in metric, so using a set of imperial feeler gauges, that measure in thousands of an inch.
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In what order do you set tappets on a 850cc 3 cylinder daihatsu engine?

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The firing order is 1-3-2 and because there is an odd number of cylinders you will never get a situation where the inlet/exhaust valve on cylinder x is fully closed leaving the inlet/exhaust on cylinder y fully open (in contrast to engines with an even cylinder count).

Instead, you just choose whether to start with the inlet or exhaust valves first and then adjust cylinder 1. You then turn the engine over by hand until whichever valves you chose to start with are fully open on no.3 and adjust those and then the same on no.2. Starting again at no.1 you then do the remaining valves, so if you started with the exhaust valves, now you do the inlets.

Hope this helps, if so please return the favour by taking a moment to rate my answer.

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Yes I need to know how to properly adjust the valves on my 87'Yamaha, 350 fourwheeler.

Same as any four stroke engine. Usually cold. remove the fuel tank and Rocker covers, small inspection bolt near top of gear case.
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Using feeler gauge with correct thickness selected (As per manufacturers handbook) (I do not have them)
Now insert the feeler gauge between the rocker arm and tip of the valve. If you do not know how to identify an exhaust valve to an inlet one the exhaust ones are by the exhaust pipe, inlet ones are by the intake manifold. If tappet settings are the same for both then no problem, if different (Inlets always less than the exhaust)
When adjusting loosen lock nut and gently alter gap until you can just pull feeler gauge out, recheck after tightening. Be patient as some can take along time to adjust correctly unless you have done a few.

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How to do a valve adjustment on a 2001 TRIUMPH SPRINT ST? Steps, helpful tips and specs would all be helpful- Thanks a lot!

I assume you are using the Triumph issued tool. Do you have a Service Manual. It has a picture of the tool and a note: The tool mounting plate is marked 'IN' & 'EX' denoting which are the inlet and exhaust sides of the tool. Always ensure that the tool assembly instructions are closely followed to ensure correct tool operation.

Hold the legs firmly against the mounting plate and tighten the leg to mounting plate fixings to 7Nm. Turn the engine over until the camshaft lobes for the valves to be adjusted point directly away from the valves. As the valves begin to close, the tool legs will prevent the valves from rising, allowing the shims to be removed using a soft faced lever and a magnet. (the shim is often a tight fit in the tappet). Replace new shim, coated with engine oil on both sides. Turn the engine over until the camshaft fully opens the valves being adjusted. Remove the tool with the valve fully open. Check the shim has seated correctly and adjust, if necessary, before proceeding.
Note: The tool is designed to allow adjustment of 2 pairs of valves without moving the mounting plate. This is achieved by moving the tool legs to a new location once one pair has been adjusted.
Repeat the procedure until all valves have been adjusted.
You'll need a shim selection chart to make things simple.
Place the tool with the IN pointed to the Intake Valves & EX pointed to the Exhaust valves. Does that help?

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