possible timing problems?????

[verne1972]

alright, ive just replaced my control cables and the shifting issue is now over. heres my new problem, at WOT (not from the hole shot, but at full speed 5100 RPM's and above) the engine starts to drag down, and im wondering if this could be a timing issue? could the linkage be out of adjustment? and if so. where would one go on how to bench set the linkage? i under stand that all engines will require fine adjustments, but im thinking the timming is out at WOT. if you think it might be something different, please let me know. im open for an suggestions...... thanks....

 

[jtcarter]

Re: possible timing problems?????

Starts to lose rpm's or a flat spot?

 

[verne1972]

Re: possible timing problems?????

ita a flat spot i think. it kinda sounds like it wants to get there, but it just boggs

 

[verne1972]

Re: possible timing problems?????

--------------------------------------------------------------------------------

ita a flat spot i think. it kinda sounds like it wants to get there, but it just boggs

 

[jtcarter]

Re: possible timing problems?????

Does it lose rpm's?

 

[verne1972]

Re: possible timing problems?????

it does not loose rpms, i can maintain 4900 all day long, its just when i give her all the throtle this happens. i was able to get 5850 rpms befor and now only around 5000 max

 

[jtcarter]

Re: possible timing problems?????

What motor are we talking about here?

 

[verne1972]

Re: possible timing problems?????

77 Evinrude 115 model 115793S

 

[jtcarter]

Re: possible timing problems?????

Kinda sounds like your dropping a cylinder at high speed.

 

[verne1972]

Re: possible timing problems?????

please explain. im not real sure what you mean.

 

[jtcarter]

Re: possible timing problems?????

Your not getting spark on one cylinder at high speed. Have you checked your fuel filter for trash?

 

[jtcarter]

Re: possible timing problems?????

Try doing a spark check also get yourself a spark jumper or make one. Do you have a manual?

 

[verne1972]

Re: possible timing problems?????

i have actually. i have recently replaced all four coil packs, plugs, water seperator filter, and both control cables. i have had a problem with trash in the tank, but im almost sure that problem has been corrected. maybe not. i did not remove the tanks but ive ran it out 2 times, trying to get the garbage in the tank out.

 

[verne1972]

Re: possible timing problems?????

also, i did some toying with the linkage that hits the throttle body trying to adjust the idle.