I have a 2004 40 hp yamaha and have followed all suggestions and done all necessary checks of fuel system, compression, plugs, fuel pump and have rebuilt carbs. Motor still bogs and cuts out when trying to get out of the hole.
Next, I will try to sync carbs. I have the Yamaha mantenance book and it describes how to sync the carbs. Where can I get a vacuum gage and the right adaptors for the manifold? Anything else I should know before attempting this?
Thanks for the support.
Bob
As an aside... the Yamaha catalogue shows a small ball (like a bearing ball) in the plunger of each carb. I didn't find this ball in the plunger aperatus on any of the three carbs. Has Yamaha changed this design and could the catalogue not have it yet? I'm worried that a previous rebuild might have left these out or somehting.
Next, I will try to sync carbs. I have the Yamaha mantenance book and it describes how to sync the carbs. Where can I get a vacuum gage and the right adaptors for the manifold? Anything else I should know before attempting this?
Thanks for the support.
Bob
As an aside... the Yamaha catalogue shows a small ball (like a bearing ball) in the plunger of each carb. I didn't find this ball in the plunger aperatus on any of the three carbs. Has Yamaha changed this design and could the catalogue not have it yet? I'm worried that a previous rebuild might have left these out or somehting.
