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  1. Sylva-Ranger

    Merc 115 4 strokes 2001 ECU/fuel pump problem

    Thank you , my fuel regulator also probably defective ...Il y plug the fuel pump on 12 volts the pump work but don't stop when rean 40+ psi
  2. Sylva-Ranger

    Merc 115 4 strokes 2001 ECU/fuel pump problem

    Yes the power come from the ECU in this particular engine , i saw no relays beetwin the ECU and the fuel pump. When the engine dont start because the fuel pump is not energised, i plug the fuel pump whit to wires (12 volt and grund) and that work, but the pump run all the time and not stop...
  3. Sylva-Ranger

    Merc 115 4 strokes 2001 ECU/fuel pump problem

    Merc 115 4 strokes 2001 S\N 0T340811 (Yamaha engine) Hi everyone, hi have problem whit this engine The hi pressure fuel pump run randomly, at the begining can run ok for hours and sometimes stop or don't start after shot off......and now run about 10% of the time . The fuel pump is new (OEM...
  4. Sylva-Ranger

    3.5 hp fuel tank cap

    I need fuel tank cap for a Johnson 2003 3.5 hp J3RSTF P/N 114800, but this part is N.L.A. from BRP acording to my local dealer, and seems have not aftermarket equivalent . Do you think a fuel cap from Tohatsu's build Mercury is the same ? Or another alternative ?? Thank you
  5. Sylva-Ranger

    Suzuki 90 hp 4 strokes run 2000+ RPM Idle

    Suzuki 90 hp four strokes 2001 run 2000 rpm in idle Code 3-2 (Map sensor) and 2-2 ( CTP switch) Checked the CTP and have no continuity when giving throttle, seem to be normal Checked and clean the IAC, engine stull when disconect Is there a way to check MAP sensor ? Engine drop to at...
  6. Sylva-Ranger

    25 EFI fuel pump not work

    Do you think the put can be good for run on a battery but not by the ECM ?
  7. Sylva-Ranger

    25 EFI fuel pump not work

    There no fuses and no relays on this particular manual start motor. Acording to wiring diagram, the ECM direcly apply power or ground to the fuel pump.
  8. Sylva-Ranger

    25 EFI fuel pump not work

    Mercury 4 strokes 25 EFI 2006 S/N 0R146130 manual start Costumer install New Quantum hi pressure fuel pump not working Receive 12-15 volts DC from de ECM (pump disconect ) when pull start, but 0 when pump is conected. If i plug the fuel pump on a battery the motor run good. Is the ECM...
  9. Sylva-Ranger

    75 3 cyl running on 2 cylinders

    Finaly after changed the uper crankshaft seal and the idle was about 75 % better Also changed the top ignition coil after found a cracked magnet and the holeshot is now good and the idle too Happy customer ! Thanks for your help !
  10. Sylva-Ranger

    75 3 cyl running on 2 cylinders

    Just removed the exhaust covers : Sleeves are ok ( not rotated) , pistons rings and pistons skirts are like new .Ordered news gaskets and whil try whit the new upper crakshaft seal ............
  11. Sylva-Ranger

    75 3 cyl running on 2 cylinders

    Thant you for all the suggestions , i will comeback when i have new about this problem.
  12. Sylva-Ranger

    75 3 cyl running on 2 cylinders

    Yes for sure the motor is not use until i find the trouble, but i dont think is the carburetor because that make no difference ( in idle when i change the top and bottom
  13. Sylva-Ranger

    75 3 cyl running on 2 cylinders

    i haved order a new one and try next week because when i removed the flywheel for check the seal, i't just maybe a little bit oil around it , but i'm not sure it will make a lot of difference like that a hi RPM but the new is ordered anyways .
  14. Sylva-Ranger

    75 3 cyl running on 2 cylinders

    That what i'm going to check next, haved see that before on a johnson 3 cylinder 60 hp
  15. Sylva-Ranger

    75 3 cyl running on 2 cylinders

    fuel pressure is good and pumping the primer pump change Nothing
  16. Sylva-Ranger

    75 3 cyl running on 2 cylinders

    Mercury mid '90 75 hp 3 cylinders S/N 0G039179 When run idle , remove the top spark-plug cap (cyl no 1) and make no difference at all. No power on the water, bad holeshot. -Compression is 125 PSI on all the 3 - Ignition is very strong on all 3 - Clean all carburetors , drain all fuel and try...
  17. Sylva-Ranger

    Honda 50 hp stull when passing from R to N

    Thank you ahics. youre wright this one cover fuel injected , but they say that because Covid they don't accept order now
  18. Sylva-Ranger

    Honda 50 hp stull when passing from R to N

    Daler said that he can print some page for me but i whant the complete manual.
  19. Sylva-Ranger

    Honda 50 hp stull when passing from R to N

    To date, all the Honada factory manual i saw in line (paper or download) are for older model and not cover this particular EFI programed Ignition
  20. Sylva-Ranger

    Honda 50 hp stull when passing from R to N

    Try to have the factory service manual , nearest dealer said that Honda don't sell any service manual (paper on download) to customers. You have to be a Honda dealer to have acces to the on-line service manual.......
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