How do I set the timing on my motorcycle cam?

How do I set the timing on my motorcycle cam?

Motorcycle Camshaft Timing & Alignment

  1. Set the engine to TDC.
  2. Remove the cam chain tensioner.
  3. Slide the camshaft through the cam chain.
  4. Align the timing marks on the cam with the sprocket and cylinder head.
  5. Tighten the camshaft holders.
  6. Reset the cam chain tensioner.
  7. Confirm the cam marks are properly aligned.

What is cam timing in motorcycle?

Timing Marks Camshafts are gear, chain or belt driven. Gear driven camshafts are, as the name implies, camshafts that are driven by a single or series of gears. Typically the gears and camshaft have alignment marks on them.

How do I check my cam timing?

To find exact TDC, first set the dial indicator to zero at the point of highest piston travel. Next, turn the crankshaft counterclockwise about 90 degrees. Then, slowly rotate the crankshaft clockwise (the normal direction of engine rotation) until the indicator is . 030″ below the TDC (zero) setting.

What is the top speed of a Honda CB125?

The Honda CB125S was a single cylinder, four-stroke Sport Bike motorcycle produced by Honda between 1970 and 1984. It could reach a top speed of 75 mph (120 km/h). Max torque was 7.52 ft/lbs (10.2 Nm) @ 6250 RPM. Claimed horsepower was 10.19 HP (7.6 KW) @ 7750 RPM. It replaced the inline twin cylinder Honda CB125 .

How to check the timing on a 125cc engine?

As far as I’m aware, the engine in your bike is the same 125 unit used in the XL’s of the same era. To check the timing, remove the valve adjusting caps on the rocker cover. Turn the engine, anticlockwise, via the nut on the end of the crankshaft, until the piston is at top dead centre.

How do you set the timing on a Honda motorcycle?

The timing unit is located behind the timing cover on the right side of the engine crankcase. You set the timing by aligning a mark on a flywheel with an indicator-pointer at the top of the timing plate. Setting the timing on a Honda bike requires a few hand tools and a timing light. Set the crankshaft to top dead center.

Is a CB125 a good starter?

A good cb125s will be a good starter, unless it has problems. Does the carbs choke mechanism work properly and have you looked at the cmsnl exploded views, print them off if you can as they can only help you. You say the bike now has a good spark?