help troubleshooting yamaha HPDI 175

Thread starter #1
I got the boat out after sitting from the end of August. I have a 2003 yamaha HPDI 175 on it. I hooked the water to it and cranked it. It fired right up and idled fine. The only problem is when I push the hot foot it will bog down. I thought it was bad gas so I drained the gas and filled it up with 93 octane and put some gas treatment in it. It is still bogging down when I give it some gas. It sounds like a carberator problem but this motor doesn't have carbs. Can anyone help me figure out this problem???
 

bbf

Senior Member
#2
Maybe the injection system needs to be cleaned. The injectors get clogged sometimes like the jets in a carburetor. Check the primer ball and make sure its not sucking flat as well.
 
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