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Tohatsu guru please help

D

dru

New member
I have a 2006 b2 15 hp 4 stroke that dies at full throttle after about a mile but fine under that ,I will check fuel lines and tank ect but I have a Mfs 2015 20 hp 4 stroke are the fuel pumps the same as I could swap to rule that out
 
Ok, the model is MFS15B2. That's the one with ABS enrichment, so no choke required.
3H8040001MFUEL PUMP, F25/30A/B F9.9/15/18$63.48


The MFS20C uses the same fuel pump.

You could have an air leak, sucking air on the vacuum side of the pump (due to a bad o-ring on the primer hose, etc.) or insufficient tank venting, causing excessive vacuum when at speed, or an underperforming fuel pump, or any of several other issues, including a CD that is failing hot.
 
Thanks for the reply
pvanv said:
Ok, the model is MFS15B2. That's the one with ABS enrichment, so no choke required.
3H8040001MFUEL PUMP, F25/30A/B F9.9/15/18$63.48

The MFS20C uses the same fuel pump.

You could have an air leak, sucking air on the vacuum side of the pump (due to a bad o-ring on the primer hose, etc.) or insufficient tank venting, causing excessive vacuum when at speed, or an underperforming fuel pump, or any of several other issues, including a CD that is failing hot.
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