125 How do you install timing chain on 05 klx 125?

Was hoping someone could give me the steps to installing a cam chain on my sons 04 klx 125, put new piston, rings, valves and valve seals in and want to put a new timing chain now. I have the motor put back together so I need to start from scratch....thanks.
 

SRAD97750

Moderator
Staff member
Setting the engine/valve timing
1.Bring the engine to TDC
Line up the "line" just to the left of the letter "t" in the inspection window
2. Set the cam timing.
Install the cam with the 'cam line' parallel with head surface
3.Then install tensioner.

For valve clearance
1.Set the engine to TDC
Line up the "line" just to the left of the letter "t" in the inspection window
2. Measure valve clearance between the cam and valve
With both valves closed the measurment should be .003 to .005"

-BIG DAN:thumb:
 
Setting the engine/valve timing
1.Bring the engine to TDC
Line up the "line" just to the left of the letter "t" in the inspection window
2. Set the cam timing.
Install the cam with the 'cam line' parallel with head surface
3.Then install tensioner.

For valve clearance
1.Set the engine to TDC
Line up the "line" just to the left of the letter "t" in the inspection window
2. Measure valve clearance between the cam and valve
With both valves closed the measurment should be .003 to .005"

-BIG DAN:thumb:

How do you put a new cam/timing CHAIN in. do you have to take the head and cylinder back off?...Thanks
 

SRAD97750

Moderator
Staff member
So sorry, I misread your post. I thought you said it was all apart and you needed to assemble it from scratch.

OK. Let's try again... stand by...
 
I don't know if it will work but you can try to tie the new chain to the old chain at one end with a piece of wire and pull the old one out while pulling the new one in. then just set your marks and hook new chain up.
 
You have to remove the stator and valve/cam cover. I'm pretty sure you can install it like that. Is your chain bad? Or just noisy, I say this because the chain tensioner on these bikes are finiky.
 
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