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jan joyce

Thank you for your response. The #4 carb is missing. It is a new carb. We have a manometer. Is there an inherent problem with the 2004 50 hp Yamaha motors model no. T50TLRC? We have adjusted the hex bolt, etc. Still cannot figure out why it is missing. Thank you for your help.
 
Thank you for your response. The #4 carb is missing. It is a new carb. We have a manometer. Is there an inherent problem with the 2004 50 hp Yamaha motors model no. T50TLRC? We have adjusted the hex bolt, etc. Still cannot figure out why it is missing. Thank you for your help.
 
Yes. And we have all new spark plugs. Thanks. Checked and no water in gas and hput in new gas. New plugs. #4 is new carb.; compression check 2 times and all even around 150 psi; new gas line, no vacuum leaks, swapped coils 3 times; value adjustment checked; fuel pressure running at 4 psi.

What is the psi for the fuel pump? Are there problems on this model T50 TLRC Yamaha 50 hp 4 stroke? What would you recommend we try? Thank you.
 
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Yes. And we have all new spark plugs. Thanks. Checked and no water in gas and hput in new gas. New plugs. #4 is new carb.; compression check 2 times and all even around 150 psi; new gas line, no vacuum leaks, swapped coils 3 times; value adjustment checked; fuel pressure running at 4 psi.

What is the psi for the fuel pump? Are there problems on this model T50 TLRC Yamaha 50 hp 4 stroke? What would you recommend we try? Thank you.​

Last edited by jan joyce; Today at 09:09 PM. Reason: add more information​
 
jan joyce said:
Thank you for your response. The #4 carb is missing. It is a new carb. We have a manometer. Is there an inherent problem with the 2004 50 hp Yamaha motors model no. T50TLRC? We have adjusted the hex bolt, etc. Still cannot figure out why it is missing. Thank you for your help.
Click to expand...

So you installed a new #4 carb, is this correct? A "hex bolt" adjustment.... Well im confused as to what hex bolt amd why it was adjusted. You didn't answer my question....did you follow the time and sync procedure in the service manual?
 
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Thank you so much for your reply. And Yes, we followed the time and sych procedure. We did get all in sync; however our problem is the #4 cylinder is misfiring. We have a new #4 carb in that cylinder. We also have a manometer to get all in sync and we have the repair manual. Have replaced all spark plugs with new and they all fire; have new gas line; no water in gas and put in new gas; compression checked 2x and all even at 150psi; no vacuum leaks; valve adjustments done; fuel pressure checked and running psi is 4. The model no. is T50 TLRC.
The symtom is the misfiring #4 cylinder; however, we need your help to figure out the cause or causes or possible cause. Thank you.The cylinder is not necessarily the problem. Thanks.
 
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