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Head tension, tappet settings, timing marks CTX200 honda motorbike

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Posted on Jan 02, 2017

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SOURCE: Valve Timing and Head Tension

line the second mark on the flywheel up in the hole on the left cover that is top dead center, that tensioner i believe you have to prewind to bring it back take the bolt out and use a small screw driver and wind it back in and leave it in there untill you put the cam back in and bolt it down. make sure you use caution when removing the bollt from the tensioner it is spring loaded. the cam sprocket has lines or dots they will need to line those up with the gasket surface make sure there is no press on the valves that will be top dead center comp

Posted on Dec 24, 2008

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SOURCE: Honda CRF 150X tappet settings

.003 for the intake and .005 for the exhaust should do nicely.

Posted on May 08, 2009

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SOURCE: Very loud tappets?? on 1984 honda cbx750

have you adjusted your valves that is what it sounds like to me

Posted on Aug 22, 2009

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SOURCE: need to know torque settings for honda cx500

from the honda service manual head torque kg-m 5.0 - 5.5
ft-lb 36 - 40

Posted on Apr 26, 2010

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SOURCE: honda xr 125 to set tappet clearances and adjust

timing chain should be auto adjust. set valve clearence to inlet 4 thou, exhaust 6 thou

Posted on May 20, 2010

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Honda 1982 XL 125 R. When timing marks line up, why won't the electric timing mark rotate far enough to line up?

The electric timing mark as you call it is activated when the engine is running it shows the advance timing as the engine speed increases.

Many older bikes had a T mark and an F mark on the flywheel. T = Top Dead Center, F = firing mark. I had one of these in the early '80's, from what I remember you have to set up the flywheel to T, the cam wheel to its marker on the cylinder head. then you have to make sure the piston is on the firing stroke both tappets closed.

Also you need to make sure the cam chain tensioner is free as this will make the chain pull back. Once you have everything in the correct position and you are at the correct point in the 4 stroke cycle the engine should start. Good luck

Jun 30, 2015 | Honda Motorcycles

1 Answer

Honda ctx200 fresh rebuild ran a couple times but started stalling backfiring when warmes up. took cover off found cam out by one tooth. adjusted and out together now it wont start at all. help please

Is it a dual cam engine? If so make sure can gear marks are aligned. Verify distributor is installed correctly set firing order is correct.only two things cause backfiring. Incorrect timing or incorrect plug wire position at distributor cap

Nov 19, 2014 | Cars & Trucks

1 Answer

I have a yamaha zx400 motorbike the problem im have is setting up the timing for the cams ....can anyone help please wayne

remove ignition cover , put piston next to cam chain at tdc and move cams round with chain over cogs till aligning marks on cogs line up with head face edge and replace cam retainers , some engines have small dots on cams that line up on the retainers which have a mark on so you can see them aligne too , if ok then fit chain tensioner and guide and rotate engine in direction of rotation with bike in gear and rotate rear wheel by hand to check if valves miss pistons etc ! all ok then refit all parts and run up P...

Oct 22, 2013 | Motorcycles

1 Answer

I replace timing belt but cant set timing

Hi Robert, It would help to know what engine is in your vehicle? A rule of thumb way to set up the valve timing is as follows. Rotate the crank shaft until the crank shaft mark is about 90 degrees from TDC. This will protect the valves from damage when rotating the cams to align them. With the tappet cover removed rotate the cam shaft or shafts so that the number one cylinder is on compression (both inlet and exhaust valves fully closed) and the last cylinder in line on overlap, Look for adjacent timing marks on the cam gears and somewhere close to those look for the alignment marks (maybe notch marks, holes or indented match marks). (Some manufactures use the machined gasket surface where the tappet cover closes onto the cylinder head). Look closely for the static mark on the cylinder head and align the cam(s) to it or them. Once completed, set the crank at Top Dead Center and look carefully for a timing mark which aligns with the gear and set them. Fit the belt so the marks align when the tensioner bearing is released and presses the belt under load. (follow the manufactures recommended tightening instructions.) . (Remember never to crimp a timing belt, if it has been, throw it away and get another, even if it is new!) If the belt snapped and that is the reason for replacement, internal damage may have resulted inside the engine. A snapped belt may cause damage to the valves, the camshafts, the cam shaft caps and to the pistons. If the engine turns much faster than expected and sounds as if there is no compression, you have problems! (Those I've just mentioned. I hope not for your sake. best of luck Regards John

Dec 12, 2011 | 2000 Hyundai Accent

1 Answer

How to timing and adjust valve tappet clereance

Remove the crankshaft tappet cap at the front of the motor and the timing inspection cap on the top right side of the rear cover.
Take off your valve covers.
Rotate the motor clockwise and align the TL mark with the pulsar index mark. Check that all the valves are loose on the left cylinder. The left cylinder must be at T.D.C. top dead center on the compression stroke.
At this time you can adjust your cam chain tension if you are not out fitted with an automatic cam chain tensioner (the cx650 automatic cam chain tensioner will fit in the manual tension models). Loosen the hex stud above the timing inspection hole and re tighten, done.

IN: 0.08 mm (0.003 in.)
EX: 0.10 mm (0.004 in.)

Adjust the valves on the left head first ("TL" mark). Loosen the lock nut, turn the screw until there is SLIGHT drag on the feeler gauge. It is very important that you do not over tighten the valves. The Rocker assembly floats on oil and will zero tolerance the valves all by itself. If you over tighten the valves it will push the rocker to one side and damage the rocker bearing/shaft. Hold the screw and tighten the lock nut . Recheck the valve clearances.
Rotate the crankshaft clockwise and align the "TR" mark on the rotor with the pulsar index mark. The right cylinder must be at T.D.C. at the compression stroke.Make sure all the valves are loose. Adjust the valves and recheck the tolerance after tightening.
Reassemble the motor.

Dec 30, 2010 | 1983 Honda GL 400 Custom

1 Answer

How to change timing belts

There is a small cap on the top left side of the motor . If you take it off you will see the timing marks. To line up the 1 T F mark you will have to rotate the motor. This is done by removing the tappet cover in the center of the magneto on the back left corner of the motor . To rotate the motor insert a 17mm socket on a short breaker bar and turn. If you reach between the radiator an d the engine with a 10 mm wrench you can remove the timing belt covers without draining and removing the radiator. Take off both covers and look at the cam gears each one has a dot that should line up with the arrow on the back cam cover outside most edge. When the Cam arrows and dots line up , and the 1 T F is lined up , then the engine is correctly timed (mechanically speaking). Now loosen the belt tensioners and remove the belts. Check that the tensioner bearings are in good order, if the bearings are bad, replace the tensioner assembly. Put on the new belts, tension them, and double check the timing marks. If the marks do not line up, loosen the tensioner and adjust the belt. Check all the marks before you move anything , rotate gently , and do not force anything or you will be pulling a head off to replace bent valves.

Dec 27, 2010 | 1981 Honda GL 1100 Innerstate Gold Wing

1 Answer

Wanting to know what the timing proceedure is on my 2007 model DRZ 250 motorbike

Not sure what state of "togetherness" your motor is in but, there is an inspection bolt hole on the front side of the magneto cover. Take this bolt out together with the sparkplug and remove cylinder head cover. Turn engine till a timing mark appears in the centre of the inspection hole. The piston/crank will be at TDC (top dead centre) if magneto rotor is keyed on correctly. Do not set anything on engine other than at TDC. Magneto is tightened on to crankchaft end with a locating key, this covers your spark timing.
Valve timing is achieved via the cams, place camshafts into cups at TDC (all valves will be shut) and timing marks on camshaft sprockets will line up with line on cam cup journals in the head. Camchain is fed on from opposite side as chain tensioner to ensure timing remains when tensioned. Let me know if you are "all parts on the bench" or contemplating a stripdown, I can then clarify all necessary steps.

May 02, 2010 | 2005 Suzuki DR-Z 250

2 Answers

Changed the water pump on my 1997 passport & now the timing is off.

I assume you are talking about valve timing not igntion timing. If that is the case your water pump maybe run by the timing belt. If it is you would need to completely disassemble the timing cover and set the number one cylinder to TDC (top dead center) on the Compression stroke not the exhaust stroke. Once you do that line the timing marks up on cam gears with marks on the side of the head. Then install a new timing belt and tensioner. It is a good idea to always change the pump and belt together. I would suggest buying a manual for your specific vehicle for specific torque specs and exact locations of components and procedures.

Dec 03, 2009 | 1997 Honda Passport

1 Answer

How do u remove timing chain and re-time engine (1984 xr 250 r)

If you need to remove the cylinder head, here's how. To remove the cam chain, you've got to also remove the left crankcase cover and flywheel.

First, you need to turn the engine over until the piston is at top dead center (TDC) of the compression stroke. Begin by removing the two round covers from the left side of the crankcase cover. Also remove the four tappet hole covers from the cylinder head cover. Turn the engine (in the normal direction of rotation) and watch the intake valves open - and close, then see that the exhaust valves open, then close. Now align the 'T' on the flywheel with the notch in the inspection hole. With all of the valves closed, the engine is at TDC of the compression stroke. Do not begin removal of the cylinder head cover until this is done - to avoid damage to the cover.

With the cylinder head cover removed, you will find two bolts attaching the cam chain sprocket to the camshaft. Turn the engine until you can get a 10mm socet onto the heads of the bolts and remove them. The sprocket will come loose and slide down onto the camshaft, enabling you to remove it an the camshaft.

Upon reassembly, set the cam timing by first setting the engine at TDC. Then, align the two marks on the cam sprocket with the gasket surface on the cylinder head. With the engine at TDC and the marks lined up, the cam timing is properly set.

Before calling the job done, make sure to adjust the tappet clearances to .002" on the intake and .003" on the exhaust valves.

Oct 24, 2009 | 1985 Honda XR 250 R

1 Answer

Is there a timing diagram? I need to put the timing chain back on.

remove the right hand inspection hole from the engine cover turn the engine over with bolt in the hole and set the mark to no 1 tdc on remove the cam chain tensioner set the inlet cam with the inlet line mark flush to the head were the cam cover would sit then set the ex cam flush with the ex line and check that all three marks line up :inlet flush with the head the same with the ex cam and the crank mark lines up with engine case no 1 mark bolt down the cams in a criss cross pattern and torque to 12nm then back of the tensioner with a small flat head screwdriver you will have to hold it in the bolt it in and pull the driver out and you should hear it snap in place turn the engine over clock wise and recheck your marks to make sure you have it set wright.
hope this helps please leave feed back.

Oct 05, 2009 | 2000 Honda Hornet 250

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