What is timing chain problem in bike?
Over a period of time, the timing chain can stretch, which can cause the chain to skip a gear on the cam or crankshaft. This causes the engine’s timing to fall out of calibration and often results in a misfire. The engine may also run poorly and lack accelerating power.
How long does a motorcycle cam chain last?
It’s safe to say that with proper maintenance, timing chains can even last as long as the engine. That’s why you can find bikes with original timing chains, which have over 150,000-200,000 miles on them! In contrast, some owners prefer to replace their chain after a certain mileage.
Is it OK to overtighten a Honda cam chain?
5) do not overtighten the chain as the cam journals are machined right into the aluminum head. Overtightening will cause premature wear to the cam journals. An alternative is to remove the altenator cover on the left side of the engine, this is not in an oil bath so if you lean the bike to the right you won’t lose any oil.
Where is the cam chain on a Honda TL125?
An alternative is to remove the altenator cover on the left side of the engine, this is not in an oil bath so if you lean the bike to the right you won’t lose any oil. You will be able to see the cam chain behind the rotor and should be able to see it tighten and/or slacken as you adjust the screw. This method is with the engine off mind you.
When to replace the cam chain on a Moto?
When I set the plunger with the old chain installed the ninth tooth was engaged on the plunger. Observations like this can be used to gauge cam chain wear and to determine when the chain should be replaced. Every engine will have specific marks designed into components to aid in the timing of the engine.
How can I tell if my cam chain is worn out?
I want to discuss and share with you some signs that the cam chain is worn out. Just like the drive chain, timing chains elongate, fatigue, and wear out. Luckily, they are not subject to dirt and mud, are bathed in an oil bath, and their overall environment is much better.
Is there a way to adjust cam chain?
Since earlier today I have removed the cam chain tension-er plunger but have found no way to adjust. My bike is a 1972 model, at least that is what is on the frame so I have no reason to think otherwise. I started out replacing the coil, which tested bad. Still no spark, or insufficient spark, so I got a new set of points and new plug.
What happens when exhaust cam chain is worn?
As the chain wears the tensioner will absorb slack and the cams will retard. In this image with the old chain installed the exhaust cam punch mark is far too high in relation to the cylinder head machined surface and the intake cam is not even visible. This is a good indication that the chain is worn and should be replaced.
Why are the cams worn out on Honda bikes?
Now, the history of the problem. Most of these engines, especially those driven hard, wore out cam lobes, rocker faces, and cam bearing surfaces prematurely. This was especially common in Europe where the bikes are driven harder and faster. Honda came up with many explanations: Incorrect valve adjustment because of forked rocker arms.
What happens when the timing chain is off on a Moto?
Cam timings that are off several degrees will result in a loss of power and the cam chain tensioner will have quite a job trying to take slack out of the valvetrain. When a timing chain elongates it may not do so in a uniform way and parts of the chain may be tighter or looser than others.