throttle adjustment on a 1985 115 jhonson

[randy38]

whn i take off the cover plate covering the carbs,and push the throttle lever down the carbs dont open fully,when i adjust the cable to where the carbs open fully it idles way to high?

 

[angus63]

Re: throttle adjustment on a 1985 115 jhonson

The throttle linkage may be going past WOT. When the throttle plates are truly horizontal (inline with the carb throat), you are at WOT. The linkage sometimes aloow the plates to go past horizontal which actuaaly is slowwing her up.<br />Good luck

 

[rabidfish]

Re: throttle adjustment on a 1985 115 jhonson

You really need to start over with your "synch & link". You might find other issues that resolve your problem.

 

[DHPMARINE]

Re: throttle adjustment on a 1985 115 jhonson

"sync & linc" is probably gonna win this one.Just be sure ,when you're done,the throttle plates don't open past horzontal.<br /><br />DHP

 

[randy38]

Re: throttle adjustment on a 1985 115 jhonson

what do you mean synch and link? the throttle plates dont go past wot.

 

[rodbolt]

Re: throttle adjustment on a 1985 115 jhonson

now you will need the service manual. no other way.<br /> study it well while eating wheaties before wrenching to gain an understanding of all that happens as ther throttle arm is moved.

 

[DHPMARINE]

Re: throttle adjustment on a 1985 115 jhonson

sync & link involves matching the timing advance to the initial opening of the throttle plates.One of the FINAL steps is adjusting for Wide Open Throttle as well as full spark advance.<br /><br />DHP

 

[Silvertip]

Re: throttle adjustment on a 1985 115 jhonson

Two things here Randy. First, you do not adjust the trottle cable to get wide open throttle. That's done with the link&sync procedure. The link&synch makes sure all of the linkage rods and cams are properly adjusted. Also at wide open throttle the throttle plates must per perfectly horizontal in the carb throat. Any more or any less is not acceptable. You really need a service manual for this process. Its far too lengthy to go into here. Once the link&synch is complete, then the throttle cable trunion is adjusted so it matches up with the lever on the engine.

 

[randy38]

Re: throttle adjustment on a 1985 115 jhonson

where can i find a manual?

 

[angus63]

Re: throttle adjustment on a 1985 115 jhonson

www.theoutboardwizard.com<br />or ebay<br />Get the factory service manual