o-ring

Got a Honda 1982 CB900C last summer. First bike, and I love it. But, it the carbs have gone to trash since then (I live in AR and can still ride), and only 3 cylinders fire anymore. Here's the problem: carb rebuild kits (because I'm relatively sure the bowl o-rings will be shot) are $36/piece...

Chains get longer due to wear on the link pins and the links they contact. You kind of expect them all to wear about the same since they all are exposed to about the same stresses. Consider though that a single link may become damaged and wear faster than the rest of the chain. Say for...

My standard chain it nearing its limit and I'm ready to go for an o-ring replacement. I see them for sale from around $50 to over $150. I'm guessing the cheapest ones may be made using the lowest grade o-rings and links available. (Possibly o-rings made for non-moving applications, or heat...