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1978-79 175 , when you advance throttle it dies, idles gre…

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1978-79 175 , when you...
1978-79 175 , when you advance throttle it dies, idles great
Submitted: 3 years ago.Category: Boat
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Answered in 1 minute by:
7/2/2015
Marine Mechanic: Jason, Marine Mechanic replied 3 years ago
Jason
Jason, Marine Mechanic
Category: Boat
Satisfied Customers: 18,217
Experience: Degree in Marine Technology. Gas and diesel marine mechanic.
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Hello my name is ***** ***** am I speaking with?
This is a pretty old engine. When was the last time it ran correctly?
Have you done any kind of troubleshooting yourself yet, such as compression and spark output testing?
How old is the fuel?
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Customer reply replied 3 years ago
I've been fishing 3 times this spring, we have had a lot of rain in Texas, the boat preformed just fine, I added sea foam before I went out on the last run . Haven't done any checking yet, the gas is about a month old, I run the engine once a month when sitting over the winter.
Marine Mechanic: Jason, Marine Mechanic replied 3 years ago
Have you run the engine off of another fuel source yet? There is some troubleshooting that needs to be done here. What kinds of questions did you have about it?
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Customer reply replied 3 years ago
No haven't had time, will dig into more when I'm off of work, which will start Sunday. The engine Idles just fine, will run all day, manual throttle will increase rpm, no problem, just when I try to put it in gear.
Marine Mechanic: Jason, Marine Mechanic replied 3 years ago
Do you know how to check compression and spark output on an outboard?
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Customer reply replied 3 years ago
Yes can do but it will be Sunday or Monday.
Marine Mechanic: Jason, Marine Mechanic replied 3 years ago
Sounds good. Let me know how you make out and we will take it from there.
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Customer reply replied 3 years ago
Thanks
Marine Mechanic: Jason, Marine Mechanic replied 3 years ago
you bet.
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