Question about 2005 Honda Xr 250 Tornado

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Need camshaft clearance for Ex and In - 2005 Honda Xr 250 Tornado

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Exhaust: 0.12 +/- 0.02 mm (0.005 +/- 0.001 inch)
Inlet: 0.10 +/- 0.02 mm (0.004 +/- 0.001 inch)

Posted on Dec 11, 2009

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Posted on Jan 02, 2017

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Hey there I need the exhaust and Intake(valve) clearance for a komatsu 300-6 please


note Perform the valve clearance check and adjustment at the engine cold state. 1.Remove all of the ignition coils. 2.Remove the cylinder head cover.
caution Turn the crankshaft always clockwise. 3.Turn the crankshaft clockwise, and align the timing mark on the exhaust camshaft sprocket against the upper face of the cylinder head as shown in Figure. Therefore, No.1 cylinder goes to the compression top dead center. 4.Using a thickness gauge, measure the valve clearance with the arrow shown in Figure. If deviated from the standard value, make note for the valve clearance.
Standard value:

    Intake valve 0.20 ± 0.03 mm (0.008 ± 0.0012 inch)
    Exhaust valve 0.30 ± 0.03 mm (0.012 ± 0.0012 inch)
5.Turn the crankshaft clockwise 360 degrees, and put the timing mark on the exhaust camshaft sprocket in position shown in Figure. Therefore, No. 4 cylinder goes to the compression top dead center. 6.Check the valve clearance with the arrow shown in Figure. In the same procedure as 4.
7.If the valve clearance is deviated from the standard value, remove the camshaft and the valve tappet. For the camshaft removal, refer to Camshaft Removal and Installation . 8.Using a micrometer, measure the thickness of the removed valve tappet. 9.Calculate the thickness of the newly installed valve tappet through the following equation.
A: thickness of newly installed valve tappet
B: thickness of removed valve tappet
C: measured valve clearance
Equation

    Intake valve: A = B + [C - 0.20 mm (0.008 inch)]
    Exhaust valve: A = B + [C - 0.30 mm (0.012 inch)] note The valve tappet ranges 3,000 - 3,690 mm (0.1181 - 0.1453 inch) and has 47 types per 0.015 mm (0.0006 inch). The thickness below a decimal point is stamped on the reverse side of the valve tappet. 10.Install the valve tappet selected through the procedure 9, and put the camshaft in position. For the camshaft installation, refer to Camshaft Removal and Installation .
    11.After installing the timing chain, measure the valve clearance using the procedure 3 to 6. Confirm the clearance is within the standard value.
    caution Completely remove all the old FIPG, which might be remaining among the components. 12.After completely removing the liquid gasket adhering on the timing chain case, cylinder block and cylinder head, degrease them with white gasoline.
    caution The cylinder head cover should be installed within 3 minutes of applying liquid gasket.
13.Apply a 4 mm bead of liquid gasket as illustrated.
Specified sealant:
    THREE BOND 1217G or equivalent
14. Install the cylinder head cover and tighten the tightening bolts using the following procedures.
(1) Temporarily tighten to the following torque in order shown in the illustration.
Tightening torque: 3.0 ± 1.0 N·m (27 ± 8 in-lb)(2) Tighten to the specified torque in order shown in the illustration.
Specified torque: 5.5 ± 0.5 N·m (49 ± 4 in-lb)15.Install the ignition coils.

Jan 23, 2017 | Cars & Trucks

1 Answer

Need to know the valve clearance on 2007 Kawasaki KLR 650 Do you add a shim for less clearance


EX .006-.010
IN .004-.008
Yes it uses shims to change the clearance.
Shim calculator here- http://klr650.carguy.org/shims.html

Aug 12, 2011 | 2007 kawasaki KLR 650

1 Answer

Carburator and valve clearances


For the carb :
Idle r/min.- 1550+_50 r/min.
fuel level- 4.5+_5.0 mm
float height- 25.8+_1.0mm
pilot screw- 1-3/4 turns out
do you need jet #'s or not?

the "+_" signs are those plus-over-minus signs i cant do on my comp.

Valves:
valve diameter- in-30mm
ex-26mm

valve lift- in-5.5mm
ex-5.5mm

valve clearance or tappet clearance (cold):
in & ex: .08-.13mm

valve guide to valve stem clearance:
in-.010-.037mm
ex-.03-.057mm

valve guide I.D.: in & ex-5.5-5.512mm

valve stem O.D.:in-5.475-5.490mm
ex-5.455-5.470mm


Hope this helps.

Jan 30, 2011 | Suzuki Swift Cars & Trucks

1 Answer

What timing marks do i look for on the camshaft sprockets when timing up the cams, i have the tdc mark on the crank already


Presumably you sorted this?
The answer is as follows:
Looking from the RH side of the bike, the LH (inlet) camshaft sprocket has 2 marks "IN" and "EX" on opposite sides of the sprocket. The "IN" mark needs to be on the LH side i.e. at the rear of the bike. For the RH (exhaust) camshaft sprocket, the "EX" mark needs to be on the RH side i.e. at the front of the bike. Both marks need to be flush with the top of the cylinder casing.

Apr 23, 2010 | 2005 Honda CBF 250

1 Answer

My lifters are getting really loud on my 91 honda accord ex


All you need is to adjust the valve tappet clearance back to the original specification. It is a time consuming effort and require passion to do it. You need to remove the top engine cover, set timing belt to top dead centre then adjust intake & exhaust valve clearance one by one. Rotare the cranckshaft 180 degree and repeat the valve clearance,. I would suggest to leave it to the expert.

Jul 15, 2009 | 1991 Honda Accord

1 Answer

Upgrade Camshafts


yes it is but anytime you change to a bigger camshaft you should always check for clearance.

Jan 08, 2009 | Mitsubishi Eclipse Cars & Trucks

1 Answer

Cam shaft lift


rpm range =2000 to 5400....
advertised duration =292 In 292 EX.
duration at .050=214 In 214 EX
gross lift .463" IN .463" EX
lobe center 111
advance 4
valve lash .000 IN .000 EX

a good mid and top end performer ...good luck

Dec 16, 2008 | 1984 Chevrolet Chevy

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