Where is the timing cover on a Honda motorcycle?
On single-cylinder Honda motorcycles, the cover is usually on the right side of the camshaft. On a multi-cylinder motor, it is usually on the crankshaft on the right side. Turn the motor over until the largest part of the points cam is against the points. This is when the points are open at their widest. Measure the gap with a feeler gauge.
How do you set the valve timing on a motorcycle?
However, if the mechanic is unsure of the direction of rotation, they should remove the spark plug (s), select 2nd gear and rotate the rear wheel in a forward direction noting the direction of rotation of the flywheel. Once the engine’s direction of rotation has been ascertained, the mechanic can move on to finding the position of the engine.
Why is valve timing important in a 4 stroke engine?
On 4-stroke internal combustion engines, setting the valve timing is critical. Different engine designs have different methods of achieving the same objective-precise, reliable operation of the inlet and exhaust valves. The experienced mechanic will approach each engine design to ascertain the correct method for setting that engine’s valve timing.
Where are the timing marks on a motorcycle?
The mechanic should examine the flywheel at this point to locate the TDC timing marks. Highlighting the marks with an orange paint pen, for instance, will help to see the marks more clearly something that is particularly important when using a timing light for ignition timing checks. Camshafts are gear, chain or belt driven.
How do you set the timing on a Honda motorcycle?
Carefully turn the motor over using the ratchet and deep socket one time, until the timing mark comes back around to the center of the window. Check all timing marks again. When all marks are aligned, and the tensioner and all pulley bolts have been tightened, install the timing belt covers. Park the motorcycle on its kickstand.
How can you tell the valve timing on a motorcycle?
When the position of the number one piston has been ascertained, the mechanic should rotate the engine until the piston is moving upwards on the compression stroke (both valves closed). At this point, a suitable measuring device should be inserted into the spark plug hole. The ideal tool for this purpose is a dial gauge indicator.
What’s the correct cam timing on a bike?
Set the valve at Y mm (say, 4-mm) of lift on the opening side and note the number on the degree wheel, then set the same valve at Y mm of lift on the closing side and note the number. The lobe center of that cam lobe is the timing midway between the two numbers.
On 4-stroke internal combustion engines, setting the valve timing is critical. Different engine designs have different methods of achieving the same objective-precise, reliable operation of the inlet and exhaust valves. The experienced mechanic will approach each engine design to ascertain the correct method for setting that engine’s valve timing.