78 TO 82 115HP CARBURETOR SWAP??

racerone

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Are there choke plates in the 1982 model carburetors?-------There are in the 78 model.-----So you would also need the electric primer valve.
 

phx5kegsman

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I have the electric primer valve. Can I convert my choke solenoid type to the primer type? (Actually, I have been wanting to do away with the choke solenoid setup. The plastic clip on the end of the plunger was brittle and snapped in half. I repaired it with epoxy, but I think that made it too heavy. Sometimes I have to pull the top cover off and manually choke to start. A real pita. I haven't been able to find a replacement part for it) Didn't want to mess with it until I had to, but my carbs definitely need some attention. After a day out on the water I can see fuel seeping through the bowl gaskets!
 

saltchuckmatt

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Jul 19, 2019
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I have the electric primer valve. Can I convert my choke solenoid type to the primer type? (Actually, I have been wanting to do away with the choke solenoid setup. The plastic clip on the end of the plunger was brittle and snapped in half. I repaired it with epoxy, but I think that made it too heavy. Sometimes I have to pull the top cover off and manually choke to start. A real pita. I haven't been able to find a replacement part for it) Didn't want to mess with it until I had to, but my carbs definitely need some attention. After a day out on the water I can see fuel seeping through the bowl gaskets!
I take it you have a parts motor. Take a look how they plumb the primer...is their one tube to the carb and one to the intake? You might have to pull the intake too.
 

phx5kegsman

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Yes. the tubes go to intake and carbs. I've decided to just pull the carbs off the 78 and rebuild. The 82 isn't necessarily a "parts motor"...more like a "spare motor" that I plan on using if/when the rings break on the 78. I should probably not start picking parts off of it and keep it complete
 

saltchuckmatt

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Yes. the tubes go to intake and carbs. I've decided to just pull the carbs off the 78 and rebuild. The 82 isn't necessarily a "parts motor"...more like a "spare motor" that I plan on using if/when the rings break on the 78. I should probably not start picking parts off of it and keep it complete
Good plan!
 

flyingscott

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Apr 8, 2014
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Aren't those different blocks? I thought the 99 cid block came out in 79? 93 cid blocks were 78 and before.
 

racerone

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Dec 28, 2013
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Nope-----99 cube blocks for the 1973 and newer115 HP.-----The 85 HP had less displacement up to and including 1978!!------In 79 the the 85 also had the 99 cubes.
 
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