Manuals Errors/450 Rebel/Clymer's vs Honda Service Manual

[GearJammer]

Thought it would be a good idea to start a thread to give a head's up on various errors found in the manuals.

Oil Change Intervals:
Clymer's recommends changing the oil "every 600 miles".
Honda Service Manual recommends changing the oil after the 1st 600 miles (break-in period) then again after the 1st 4000 miles & every 4000 miles thereafter w/oil filter change recommended with every other oil change. (More frequent oil changes at owners' discretion are a definite plus & healthy for the motor).

Valve Clearance Checks:
Clymer's recommends checking valve clearances "every 600 miles".
Honda Service Manual recommends checking valve clearances after the 1st 600 miles (break-in period) then again after the 1st 4000 miles & every 4000 miles thereafter.

[Snorebaby]

Good Idea GJ. I also found some differences for the 450, related to testing the ignition coil. I recieved my 86 CMX450C Honda Service Manual and was browsing through it and noticed these differences. I don't know if they are different for an 87, I would think they are not. :?:

Clymers:
Coil Primary Resistance Value (at terminals on back of coil): 0.10-0.30 ohms
Coil Secondary Resistance Value (with spark plug wires still attached to the coil): 7.4-11.1 k ohms
Coil Secondary Resistance Value (at coil with spark plug wires removed): 3.7-4.5 k ohms
Altenator Exciter Coil: 50-250 ohms
Pulse Generator: 50-170 ohms

1986 Honda CMX450C Service Manual:
Coil Primary Resistance Value (at terminals on back of coil): 0.4-0.6 ohms
Coil Secondary Resistance Value (with spark plug wires still attached to the coil): 15.0-23.0 k ohms
Coil Secondary Resistance Value (at coil with spark plug wires removed): 8.0-10.0 k ohms
Altenator Exciter Coil: 70-100 ohms
Pulse Generator: 90-110 ohms

That was interesting to find especially since I was testing the coil to track down a problem. I was getting the Service Manual readings when I was testing it and only had the Clymers to go by at the time. Good to know that my coil is good according to Honda. :wink: Could have cost me some needlessly spent money. :cry:

[GearJammer]

Good catch, Snorey! And very good point about the manual errors possibly leading to needless spending to replace perfectly good components. You'd think that Clymer's would correct & up-grade their subsequent printings. :shock: