Is the yakima big stack safe for fiberglass kayaks
I used the big stack for my river kayaks and it did fine. But my fiberglass sea kayaks are so much heavier that I did not take the chance. For 1 of my kayaks I spent a lot of money to get the special sea kayak rack and it worked great. For my wife's kayak I saved some money and bought some simple v-shaped foam rubber rack attachments for $20. The foam attachments are so much easier, I don't even use the Yakima attachemnts any more. My suggestion - save your money and go with the cheap foam attachments.
Oil on spark plugs
if the spark plugs sink in oil so you need to change the rubber for the cam cover, if the oil come from inside the engine which is up-normal you must find it in water too, so you need to open the engine and see what is the problem.
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