ShraZ - Honda CBR600 F4I Manual - Drive Chain Adjustment

Task - Drive Chain Adjustment

Difficulty:
Approximating time:	30 minutes
Number of steps:	9
Number of tools needed:	4
Number of people needed:	1
Replacement part(s):	None
Stand needed:	Optional

The objective: Tighten or loosen the chain if your slack isn't around 25 - 35mm or 1 - 1 3/8in.

The time to do so: When your chain is loose or too tight.

The effects/damages if you don't do it: The chain may pop out, you have a decrease in acceleration, the engine braking feels weird, and/or you hear ticking sounds.

The tools: 27mm socket or wrench, 22mm socket or wrench, 8mm socket, and a ruler. I recommend using sockets over the wrenches.


		Step 1 - Check the chain slack, to do this you will need to use your ruler. To measure the chain slack, find the midpoint between the countershaft and rear sprockets; Lift up the chain up and then push it down, take these measurements between the highest one to the lowest one. If your slack isn't around 25 - 35mm or 1 - 1 3/8in, you will need to proceed to step 2. Step 2 - Clean and lube the chain beforehand (how-to). Step 3 - Loosen the rear right axle nut with the 27mm. DO NOT REMOVE THE NUT. Step 4 - Once loose, go to the left side and use the 8mm socket on the adjusting bolt as shown on picture 2. Step 5 - Turn the bolt until the chain tightens or loosen. Do not make big turns, do bits by bits and check the chain tension every turn. When appropriate slack is obtained, do the same position on the right side. MAKE SURE BOTH SIDES ARE ALIGNED WITH EACHOTHER. Looking at the bar on the indicator helps. Note: If the indicator is in the red zone, as shown on picture 6, you might have to change your chain and sprockets. You may also adjust the screws all the way in and counting the flats on the head as you make the adjustment. Step 6 - Now turn the rear wheel and measure the chain in two or three more places to make sure it doesn't have any stuck links or uneven stretching. If the chain has dramatically looser or tighter sections, you will need to replace it. Step 7 - You will now need the 22mm socket or wrench to hold the rear left axle bolt. The only purpose of this is to stop the bolt from moving around when you tighten on the right side. Use the 27mm on the right side and start tighten it up while managing with the other hand (or get someone) to block the left bolt from moving. DO NOT TIGHTEN IT UP VERY HARD YET. Check the slack and indicator on both sides again, if it hasn't changed, proceed to tighten the nut harder. Step 8 - Roll the bike forwards and backwards in neutral, and check for any malfunctions. Lube the chain again if you want to. Step 9 - GO RIDE. [ BACK TO F4I ]

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