just bought a 1989 cobalt 202 condure

[stanssps]

hello all this is my first post took boat into water ran good for about 15 mins changed water pump then impeller starts and runs fine intill i start going fast then it dies out also smells like rubber or plastic burning from behind the engine ...some one said maybe exhaust manifolds but i dont know which ones to get my motor has a tag says volvo penta 4100105174 but i am not sure what Aq number to get theres like an aq 211a aq231a aq 311b what do these mean and which way do i tell which one works for me please and thank you

[AsLan7]

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So glad you found a stans…

Don’t know about your part numbers, but hopefully someone here will chime in shortly. Welcome aboard, mate.

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[stanssps]

best place to buy volvo penta parts please