1975 9.9 evinrude

[dunlapdr]

I've searched the archives, but I still need help. I'm getting gas to the carb, I'm getting spark from the plugs - still won't start. after several attempts I can check the plugs and the plugs will be wet with gas. Have run it twice with no problems before- had to park it for a month( engine covered with tarp) and then the problem started- what else is there to try?

 

[dunlapdr]

Re: 1975 9.9 evinrude

Middleground-<br />Is the only way to correct a flooding with a rebuild ?- I tried the choke, half choke , no choke on diffferent occaisons and still no go. Tried with the gas tank unhooked to clear the carb and still nothing. This is an electric start motor if that matters.

 

[dunlapdr]

Re: 1975 9.9 evinrude

Thanks- the motor had new coils and plugs when I got it. Pretty good spark- comparable to lawnmower type sparks I've seen. So off I go to rebuild!

 

[Solittle]

Re: 1975 9.9 evinrude

See:<br /><br /> http://www.outboardrepairs.com/carburetors/

 

[OBJ]

Re: 1975 9.9 evinrude

Dunlapdr....just curious...<br /><br />How are you "measuring" spark?<br /><br />Your engine spark should jump a 7/16" gap with a good hot spark. If it dosen't, I would look to the points or power coil.

 

[dunlapdr]

Re: 1975 9.9 evinrude

Yes, we're geting at 1/2 inch out of it on both plugs

 

[marinegrh]

Re: 1975 9.9 evinrude

is it a possible timing issue, check the woodruff key,

 

[StarTekh]

Re: 1975 9.9 evinrude

personaly id drop a $20.00cdn carb kit in there.. right now most omc dealers are paying the techs to sit.. remove the carb. and goto local marina

 

[dunlapdr]

Re: 1975 9.9 evinrude

Is the woodruff key the 2 big teeth on the twist grip linkage?

 

[Paul Moir]

Re: 1975 9.9 evinrude

A woodruff key is a half moon shaped peice of metal. The woodruff key marinegrh is talking about is on the crankshaft's flywheel taper. It indexes the flywheel with the crank's position. If the flywheel nut is not properly torqued, the flywheel can shear the key and turn on the crankshaft, sending timing _way_ out, since timing is found from flywheel position, not crank position.<br />EDIT: Unless your engine has points, in which case you'll probably simply loose spark. The points read the crankshaft directly.<br /><br />Good luck!

 

[Solittle]

Re: 1975 9.9 evinrude

Check out:<br /><br /> http://www.pugetsoundanglers.org/Fishing Info/Johnson 9.9_15.htm

 

[dunlapdr]

Re: 1975 9.9 evinrude

Rebuilt the carb- pretty easy really - and cleaned it all up with some carb cleaner- runs good. I have to find the best low idle set still but problem solved!! Thanks guys