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Author Topic:   Need help with SNEEZING problem!!

adaps4 posted 08-24-2003 10:43 PM ET (US)
My 1989 40 horse Yamaha keeps sneezing at idle. It usually stops running or sneezes and then gets back up to normal tone. It is worrying me, and I need to fix it. I have done some research, and have pinpointed the idle screw on the carb. If I pull each plug and listen, will I be able to find the offending carb? I really don't want to mess with all of the screws, being that I usually mess something else up in the process of fixing one problem. Thanks for the help.
Sal DiMercurio posted 08-25-2003 12:50 AM ET (US)
Your running to lean, the carbs need to be adjusted by someone who knows what their doing.
If you know little to nothing, have a qualified tech do it because you can reall make some huge problems for yourself by adjusting it to run leaner then it already is.
Thats a good way to burn an engine up.
Sal
Jarhead posted 08-25-2003 07:07 AM ET (US)
Correcting a "lean pop" is a simple procedure.
But if you don't feel comfortable adjusting the carbs you should take it to a tech.
Ask to watch so you'll be able to do it yourself should the need arise again.

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Author	Topic: Need help with SNEEZING problem!!
adaps4	posted 08-24-2003 10:43 PM ET (US) My 1989 40 horse Yamaha keeps sneezing at idle. It usually stops running or sneezes and then gets back up to normal tone. It is worrying me, and I need to fix it. I have done some research, and have pinpointed the idle screw on the carb. If I pull each plug and listen, will I be able to find the offending carb? I really don't want to mess with all of the screws, being that I usually mess something else up in the process of fixing one problem. Thanks for the help.
Sal DiMercurio	posted 08-25-2003 12:50 AM ET (US) Your running to lean, the carbs need to be adjusted by someone who knows what their doing. If you know little to nothing, have a qualified tech do it because you can reall make some huge problems for yourself by adjusting it to run leaner then it already is. Thats a good way to burn an engine up. Sal
Jarhead	posted 08-25-2003 07:07 AM ET (US) Correcting a "lean pop" is a simple procedure. But if you don't feel comfortable adjusting the carbs you should take it to a tech. Ask to watch so you'll be able to do it yourself should the need arise again.