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Difference between 150 and 175 Loop charged carburetors

R

redbird555

Member
Anyone know the difference between the 150 and 175 60 degree carbs? Are the bodies and main stuff the same? I have 175s but I can buy a couple sets of carbs off an unknown hp motor. Assuming i'm not lucky and theyre from a 150 what would i need to convert them to 175 spec carbs?

Pics of carbs are here belowcarbs.PNG
 
Rwbutler said:
What year? Not all150 carbs are the same.
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Not sure on the year of the new carbs. My motors are 98s and the carbs look exactly like the ones in the pics which are the ones I’m buyibg

I mainly only care about the bodies. My old ones have warps in them and need sealant to keep them from having vacuum leaks on the manifold
 
Rwbutler said:
To answer your question
Size of ventura,number of holes in throttle plate,size of slot in throttle plate, jets.
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Ok so what’s the easiest way to tell them apart.....not trying to be a smart ass here but are there specific part numbers etc? I haven’t found really anything on the subject other than the high speed jet for a 175 is 73D
 
Look at them,measure them
Their are part numbers you can look up ,on this site,with a model number
If you are just needing body dont worry about the throttle plates
 
Rwbutler said:
Look at them,measure them
Their are part numbers you can look up ,on this site,with a model number
If you are just needing body dont worry about the throttle plates
Click to expand...

that’s what I was saying, I just need the plastic bodies because the flanges are warped on mine and don’t seal. I see they have different part numbers from the 150s so I suppose they are different after all
 
Does anyone know what these white elbows are for on the carb? If they are removed it looks like just a hole into the carb. Are the for air vent purposes or?
 
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