merc V175 wh-34 jetting

[fazmag]

Does any one know the correct jets for the WH-34 carbs. They are on a 1987 black max 175. The guy I bought it from said he had changed some jets to make it run cooler but judging from all the work I had to do to this boat just to get it safe and reliable, I now know that this guy is an idiot and I would like to undo anything he has done. I bought the factory service manual, and the jetting chart only goes up to WH-29

 

[Laddies]

Re: merc V175 wh-34 jetting

Here's a link for parts that carb. http://www.ishopmarine.com/ishop/js...cCatFilter=MM&eCatSupFldr=supplier-050-025-MM
Here's a helpful link on V/6 engines. http://www.biggerhammer.net/mercury/

 

[Faztbullet]

Re: merc V175 wh-34 jetting

Here's a link for parts that carb. http://www.ishopmarine.com/ishop/jsp...ier-050-025-MM

This link is for WMH carbs not WH. My notes for carbs show .066 for high speed jets

 

[j_martin]

Re: merc V175 wh-34 jetting

Main Jet .064 except 2&5 are .066
Idle Jet .070
Vent Jet none

hope it helps
John

 

[fazmag]

Re: merc V175 wh-34 jetting

exactly what I was looking for! Thanks John!

 

[j_martin]

Re: merc V175 wh-34 jetting

exactly what I was looking for! Thanks John!

Don't forget if it has horizontal reeds in it, each carb throat feeds the cylinder on the other side.

 

[fazmag]

Re: merc V175 wh-34 jetting

mine are vertical. I checked the model # on the reed block