Is soaking carbs enough?

[patrick4266]

I do not know the history of this motor are when it was last started. I believe my carbs are gumed up from sitting, although they look real clean inside. However i notice the needle valve will not drop down on one of them right. I have a 1972- 85 hp rude. I would rather not buy a kit for them. Will soaking them in a carb solution be enough?

 

[ezeke]

Re: Is soaking carbs enough?

If the carburetors have not been done for a while, it is worth it to get the Sierra 18-7046 or Mallory 9-37100 kits at about $15 ea. They have better gaskets. The spring clips between the float arm and needle alone are worth the trouble if they are not in place - they are not original equipment.

The BRP kits are more expensive but they do include new floats.

 

[patrick4266]

Re: Is soaking carbs enough?

Thanks, I just took the carbs off my 1970 and put them on the 1972. Getting ready to try firing it up in a bit. However, while I got the other carbs off, I will get the kits and rebuild them.

 

[wavrider]

Re: Is soaking carbs enough?

Soak them, clean them, compressed air and pipe cleaners through every orfice/jet. Remove the jets after soaking if you have the tool, if no tool one can be made dimensions are floating around this site.

Clean , clean and re clean before assembling back together.

Semi clogged jets mean a lean mixture for the cylinders and can cause extensive damage to the engine.

Highly reccomend using a fuel stabilizer of some sort also. Do not run the carbs dry at the ramp leave the fuel in the carbs with the stabilizer, will prevent gumming and varnish, if carbs sit empty can still get varnish from small amount of fuel in the bowls if no stabilizer used in the mix.

After you get it running and if you have not done a de-carb, reccomend you de-carb to clean all the carbon out of the cylinders. Take a compression test of the cylinders before the de-carb and then after de-carb finishd, it will suprise you what that will do for an older engine, especially and v-4 crossflow head. Worked wonder's on my 1978 115.