Question about Honda CB 125 T Motorcycles

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What are the valve clearences on a cb 125t 1980

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Intake 0.08mm
exhaust 0.10mm


Posted on Mar 05, 2009

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Bike runs but when gets warm shuts down will start in about 15 mins when cools

Valve clearence is to tight, compression then becomes zero when hot and when cooled down again compression is back. Adjust clearence maybe 0.05 mm more up, but check all valves an all cylinders.
You could have a burnt seat too.

Aug 05, 2014 | 1984 Suzuki Gs 550 L

1 Answer

Valve clearence

try 0.10 mm i think .003 is to small and you would burn valves

Nov 12, 2013 | 1979 Harley Davidson XLH 1000 Sportster

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Adjustment clearance valve

Check the repair manual. Search it over the web or buy it. To set the valve clearence is more than knowing the clearence itself. The procedure should be described very well in the manual. Is worth have it.

Oct 20, 2013 | 2010 Yamaha V Star 950

1 Answer

I have a 1985 honda 450 i kinow how to adjust the valves just dont know the proper clearence

hi with a cold engine valve clearence shiuld be:
0,08 mm -inlet
0,10 mm exaust
good luck

Aug 29, 2011 | 1995 Honda VFR 400 R NC30

1 Answer

I did a value job now it will not start could my timing be of GS500F thank ruben

Hi ruben, you obviously know what u are doing ,to do a valve job, i would think you have rotated the engine by hand before trying to start it, and you have positioned the camshafts and crankshaft, in the correct position aligning the marks on the corosponding item,if you can rotate the engine without any obstruction occuring the chances are you have timed it correctly, however doing a valve job could mean you will have to reset the valve clearences to alow the valves to close fully, recheck the clearence between the valve and cam lobe on each valve, also recheck you have correctly fitted the spark plug caps on the correct plug.
Recheck the fuel and vacume pipes are correctly fitted to fuel tap.
The engine will not run if the valve clearences are not alowing the valves to close fully. Paul

May 21, 2011 | Suzuki Mius 40 Motorcycles

1 Answer

My kl250 will not start even after valve adjustment

hi, are you saying since you addjusted the valve clearences the bike wont start? re check make sure you had the engine on the correct stroke, remove spark plug, check piston is at tdc, and the cam lobes are facing down, recheck your clearences here, hope this helps/paul

Dec 30, 2010 | 2003 kawasaki KLR 250

3 Answers

What is meant by ' Valve clearence ' ,How to adjust it.

"Valve Clearance" refers to the small gap between the valve lifter and the valve stem that allows the valve to completely close. Remove the Valve Cover and set the crankshaft to the timing marks (only found in your service manual), for each particular valve to be completely closed. Loosen lock nut and set with a feeler guage then retighten the locking nut on the adjustment shaft. Four valves = four adjustments. Does this help?

Jul 02, 2009 | 2008 Yamaha Gladiator SS

1 Answer

How do you inspect valve clearence and adjust the valves???

you use a set of feeler guages to measure the gap between the valve and the tappet (the arm that opens the valve) there is a intake and exhaust gap setting. you'll have to do some research to find out what the gap should be for your motor.

Apr 18, 2009 | 2004 Suzuki GZ 250 Marauder

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