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Group: Forum Members
Last Login: 3/5/2007 10:44:31 AM
Posts: -1,167, Visits: 2 |
| Has anyone ever encountered a problem with the Decompression Spring on the KLR650. In relation to the problem with my new bike, I have found that the spring on the decompressor is very weak.
The spring that activates the decompression mechanism seems to be so weak that when the engine runs it allows the levers to bounce, therefor giving off a clicking noise.
Can this be the cause or is this spring usually this light tentioned. I realize its real hard to tell if your not able to feel the tention yourself but just imagine being able to operate the lever that the spring controls by usuing a small tie-strap. The tie-strap does'nt bend much when you try this but the spring is overpowered. Surely this must be a defective spring.
If anyone knows about a the KLR's engine and can help please reply. I'm worried about my 2 wheel "baby".
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Group: Forum Members
Last Login: 3/5/2007 10:44:31 AM
Posts: -1,167, Visits: 2 |
| I asked my dealer about this, he said that KLR's decompression devices clicked a little at idle sometimes, but he never heard of it causing burned valve or of any other related failures.
My KLR has 12,000 very hard dirt road miles on it, with no engine trouble.
The spring most likely has to be weak to work, because of the low (about 200 rpm) speed of the cam when the device is supposed to disengage. A stronger spring would keep the valve open at too high an rpm and cause poor compression.
The weights of the device "sling out" to allow the valve return to its seat; the spring is tensioned to let this happen at the correct cam speed so the engine can start properly.
Springs usually last about 20 years under normal service, including valve and clutch springs. (I know this from working as a mechanic in an antique British motorcycle shop)
If you want to worry: Keep the balance chain adjusted, the oil and coolant changed.
If you ride hard and in the dirt: Check the steering head bearings regularly until they settle in. Also keep a wrench on the top motor mount bolt for the first few thousand miles.
David |
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