black max idle

jigmister

Petty Officer 1st Class
Joined
Dec 25, 2007
Messages
203
86 175hp

got her running real nice with new reeds and carb rebuild

Idle is sometimes perfect. Other times it is kind of crappy. In gear lugging in a no wake it can start to spudder and cough.
I have to give it just a bit of throttle and then it clears out for a bit but goes right back to its coughing.
Not always just about half the time.
I chucked the idle stabalizer a year or 2 ago when it took out nearly all the other igntion componets.

Is this somthing I will just have to live with or can I try to adjust the timming? I have it set at factory 14 before topdead center.
thoughts?
 

jigmister

Petty Officer 1st Class
Joined
Dec 25, 2007
Messages
203
Re: black max idle

no comments?

anyone have information on the anti detnonation device on this thing?
 

aussieflash

Lieutenant Junior Grade
Joined
Feb 5, 2011
Messages
1,004
Re: black max idle

Still sounds like problem with reeds.Did you replace reed block Gasket.Float level been reset to spec?
 

jigmister

Petty Officer 1st Class
Joined
Dec 25, 2007
Messages
203
Re: black max idle

yes and yes. I do not think the reeds or gaskets are a problem.

what exaclty causes the engine to sneeze? lean, rich, cold or?
 

aussieflash

Lieutenant Junior Grade
Joined
Feb 5, 2011
Messages
1,004
Re: black max idle

86 175hp
Is this somthing I will just have to live with or can I try to adjust the timming? I have it set at factory 14 before topdead center.
thoughts?
I hope you meant 14deg ATDC pickup and 18deg BTDC max timing.
 

aussieflash

Lieutenant Junior Grade
Joined
Feb 5, 2011
Messages
1,004
Re: black max idle

Also check compression,spark,bleed line routing if timing is correct.
If you didnt use new reed block gasket,then get one.Good Luck
Paul
 

jigmister

Petty Officer 1st Class
Joined
Dec 25, 2007
Messages
203
Re: black max idle

yeah I meant ATDC. I will look closer at the bleed lines.

Thanks for the help
 
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