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• A. Compression test
• B. Tighten cylinder head bolts (see Chapter Four, Camshaft)
• C. Cam chain adjustment
• D. Valve clearance adjustment
• E. Spark Plugs
• F. Condenser (capacitor)
• G. Breaker points
• H. Ignition timing
• I. Air cleaner

J. Carburetion (if needed)" (Back to top of page)

• 1. Remove the 10mm nut and hexagonal washer assembly. (end of advancer)
• 2. Disconnect yellow and blue wires from old points assembly.
• 3. Loosen and remove plate mounting screws. Remove ignition plate.
• 4. Rub chalk into timing marks and smear grease around points cam.
• 5. Gently install new plate with the word Honda on the bottom and timing sight hole at the top.
• 6. Plate is mounted full CCW for 750K's. Plate is mounted with screws in center of slots for 750SS.
• 7. Connect blue wire to 1-4 points (rear set) and yellow wire to 2-3 points (front set)

• 1. Set idle to 2500 rpm
• 2. Switch up for 1-4 timing mark
• 3. with wrench adjust points till timing marks line up.
• 4. flip switch down and repeat 2. & 3. on the 2-3 points and timing mark.
• 5. compare timing marks by flipping switch up and down. both marks should be in the same relative location.

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• 1. Remove the valve adjuster caps from No. 1 (left outside) cylinder, and all four spark plugs.
• 2. Turn the crankshaft in the normal direction (clockwise) until the "T" mark for the 1-4 cylinders align with the timing index mark.
• 3. Check that there is clearance at both valves for the #1 cylinder.  If not rotate the crankshaft another complete turn (360 degrees) and check again.  To be effective the adjustment must be performed when #1 cylinder is on the compression stroke.
• 4. When both valves are free, continue turning the crankshaft clockwise until the spring peg on the spark advancer is to the right of a line drawn from the index.  At this position the #1 and #4 cylinders will be at 15 degrees ATDC, and the adjustment can be performed. Caution: Do not rotate the crankshaft counterclockwise (opposite direction of normal rotation) if you have turned it too far and gone past the timing mark.  Instead, rotate it clockwise through two complete turns so that #1 piston will again be on the compression stroke and you can position the spring peg just to the right of the timing mark without having to turn the crankshaft back.  Otherwise, the chain slack will not be positioned properly and the tensioner may not be able to take up the full amount of slack.

5. Loosen the locknut and back out the adjuster bolt until you can turn it with your fingers.  At this point, the adjuster bolt has released pressure on the tensioner rod, which has automatically moved in to take up the slack.  Tighten the adjuster bolt to 5.9-7.2 ft lbs, then lock it in position with the locknut.

• 1.  Remove the fuel tank.
• 2.  Unscrew the eight adjuster access caps.
• 3.  Remove the ignition points cover.
• 4.  Remove the spark plugs.
• 5.  Turn the crankshaft in its normal direction of rotation and observe the No.1 cylinder (far left) intake and exhaust valves.  When both valves are fully closed (clearance at both rocker arms), the piston is close to Top Dead Center of its compression stroke.  Next, align the timing index mark and the "T" (1.4) mark on the ignition advance rotor. Thsi should put the cam and crank in the correct position to adjust the "A" valves (see chart below). Looking down on the engine from the rider's position the cylinders are numbered left to right #1, #2, #3, and #4.

• 6.  Measure the clearance between the adjusting screw and the valve stem of the "A" valves described in the chart above using a feeler gauge.
• 7.  If the feeler gauge of the proper clearance thickness will not fit between the adjuster screw and valve stem, or if it slides through with little or no resistance, the clearance should be adjusted.  To obtain the proper clearance, loosen the adjuster screw locknut and turn the screw until the feeler gauge just fits, and slides with some resistance.  Tighten the locknut firmly (but do not overtighten) while holding the screw to keep it from turning.  Recheck clearance in case it changed as the locknut was tightened.
• 8.  After all four "A" valves have been checked and adjusted, rotate the crankshaft one turn (360 degrees) in its normal direction of rotation and align  the timing index mark and "T" mark exactly as before.  This will position the No. 4 cylinder on its compression stroke, and the "B" valves in the chart can be checked and adjusted in the same manner as the "A" valves.