How to change and check timing 75hp force 1996

12Footer

Fleet Admiral
Joined
Mar 25, 2001
Messages
8,217
Re: How to change and check timing 75hp force 1996

First, don't touch the timing, and try not to adjust the idle rest-- until you have rebuilt the fuel pump,run a compression test, cleaned-out the fuel tanks and carb bowl,installed a new set of plugs, and decarbed it. These engines need frequent decarbing. The only adjustment that moves -out of adjustmebnt, is the idle roller at the carb anyway. Unless a previous owner futzed with i,it should be dead-on.<br />But the roller at the carb can loose it's adejustment at times due to vibration. I use a dab of "locktite" after setting it, so it doesn't move.<br />Here is a link to the Force manual. <br />Timing is 30DBTDC, or 32DBTDC on CDM ignition.
 

my new fishmaster

Petty Officer 1st Class
Joined
Aug 11, 2001
Messages
256
Re: How to change and check timing 75hp force 1996

Yeah as you might remember I did all the above mentioned. New pump,carb rebuild,champion plugs from ngk? Did the compresion test seems with a cold engine it was 105 105 107. Done all the other tests and decarbed. My problem is she idles bad and stalls out way to much. Kinda has a knocking sound shimmy shake. I do not belive its from any bearings as the engine looks new. I did get her running better only a half turn out on the carb. But feel it could be the timing set from the dumb original dealer in AZ.
 

my new fishmaster

Petty Officer 1st Class
Joined
Aug 11, 2001
Messages
256
Re: How to change and check timing 75hp force 1996

I did see a white mark close to 33degrees or 34? Is this to far advanced to run good? My clymers manual says to different settings for timing based on the engine year old prestolight or cdi?
 

my new fishmaster

Petty Officer 1st Class
Joined
Aug 11, 2001
Messages
256
Re: How to change and check timing 75hp force 1996

btt thanks for your help my old gal needs it
 

my new fishmaster

Petty Officer 1st Class
Joined
Aug 11, 2001
Messages
256
Re: How to change and check timing 75hp force 1996

anyone have the factory 96 75hp manual what does the timing degree say? There is a white mark at 33* and wondering if there have been adjustments during a dumb dealer service. BTT help
 

cloumar

Petty Officer 1st Class
Joined
Aug 12, 2002
Messages
305
Re: How to change and check timing 75hp force 1996

my new fishmaster,<br /><br />I do have one for a 75HP - 1998 - I don't know if you would like to take a chance with that ? I may be able to scan couple of pages and E-MAIL to you, let me know.<br /><br />Mario
 

cloumar

Petty Officer 1st Class
Joined
Aug 12, 2002
Messages
305
Re: How to change and check timing 75hp force 1996

Forgot... if it is OK - It will be only tomorrow January 8 - that I'll be able to send you.
 

dmessy

Chief Petty Officer
Joined
Jul 8, 2001
Messages
505
Re: How to change and check timing 75hp force 1996

Take it to your local dealer for timing adjustment. You've had wayyy to much trouble on this particular motor. They can go through all the settings you've fiddled with and set them to specifications. My $.02 worth...
 
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