70 Yahama Not Starting

[HOT SHOT]

I Need Some Help, I Have A 1989 70 Yamaha That Will Not Start. I Ran It On Muffs Friday 5-22-09, It Started Fine And Ran Very Good. I Put It In The Water Saturday Morning Ad It Was Hard To Start. After About 3/4 Mile It Shut Down With Out Any Warning And Has Not Started Since. I Have Checked The Cdi, Fuel And Checked The Basic Timing. Every Thing Checks Good But Still It Will Not Even Try To Start.

 

[deejaycee_2000]

Re: 70 Yahama Not Starting

Do you have spark on all 3 cyl? When last did you have the carbs cleaned properly?

 

[HOT SHOT]

Re: 70 Yahama Not Starting

I Have Spark On All 3 Cyl. As Far As The Carbs They Were Cleaned Last Month, By That I Mean That They Were Disassembled And Cleaned And New Seals Installed. I Am Still Chasing This Down And I Have Found A Nicked O-ring On The Fuel Filter Bowl. I Am Hopping That Will Be The Problem.

 

[deejaycee_2000]

Re: 70 Yahama Not Starting

If you have good spark it can only be fuel ...

 

[HOT SHOT]

Re: 70 Yahama Not Starting

I Have Found A Nicked O-ring On The Fuel Filter Bowl And Replaced It, Now I Have Good Fuel. I Tried To Run The Motor On Muffs And It Will Not Get Much Off An Idle With The Warm Up Lever All The Way Up. I A Thinking That May Be The Spark Is Not Advancing. Also I Found That 2 Of The Three Spark Plugs Had No Conectivity, I Also Replaced All 3. Could This Cause A Problem With The Cdi?