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Dominick, Marine Mechanic
Category: Boat
Satisfied Customers: 1009
Experience:  25 Years Experience as Mechanic, 20 Yrs Boat Yard Owner/Mechanic, Factory Certified
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I have a 70hp Yamaha 2stroke 2003 model. The problem is I

Customer Question

I have a 70hp Yamaha 2stroke 2003 model. The problem is I left the ear muffs while going out fishing. Now I have had a compression test done on the bottom piston and it was only a rating of 90psi while the other two Pistons were great at around 120psi does this mean I need a rebuild of the motor and if it's not always the case what else could be the problem. Thanks nibs
Submitted: 7 months ago.
Category: Boat
Customer: replied 7 months ago.
Also it would be great if you can tell me what parts I will need for a rebuild.
Expert:  Jason replied 7 months ago.

Hi Nibs, my name is ***** ***** I will be helping you today

How does the engine run, is it lacking any power? Did the engine overheat?

Expert:  Jason replied 7 months ago.

It looks like you have read my response and logged off. Was this something you still need help with?

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