O.K. , I spent all day working on this girls Blaster. It's a 94 701 61x and we put in TDR reeds, rebuilt the carb (Yamaha OEM 44mm SBN) , removed the choke, OP flame arrestor, Factory Limited pipe.
We go to fire it up and it doesn't want to start. Check spark- o.k.
Check fuel- o.k.
Fires up with a shot of starting fluid but then dies like it's out of gas. (don't give me crap about using starting fluid).
So I take the carb off again and check everything- all ok. I had used a new rebuild kit, set pop off at 22 psi with 2.3 n/s. Main jet 150, pilot 120, low speed at 1 turn, high speed at 1.5 turn. I blew out all the passages and visually checked the gaskets.
Still didn't want to start. It seemed to drip an excessive amount of fuel from the return line when I took it off the carb.
So I swapped for a carb I knew worked (Mikuni 44mm SBN, not Yamaha OEM).
Now it started up and ran fine, needed a little tuning.
Swapped the fuel pump from the good carb to the rebuilt carb and it did the same thing. Fires up with starting fluid but won't idle and seems to die out.
Blew out all the passages again and rechecked everything- still that carb won't work. This carb looks good- no deposits or corrosion in any of the passages. She just bought the ski and the guy said it was always hard to start- needed choke and starting fluid. She rode it last weekend and said it wouldn't idle good and seemed like it lacked power.
What do you think it could be?
[ September 21, 2002, 10:28 PM: Message edited by: SubmarineAZ ]
We go to fire it up and it doesn't want to start. Check spark- o.k.
Check fuel- o.k.
Fires up with a shot of starting fluid but then dies like it's out of gas. (don't give me crap about using starting fluid).
So I take the carb off again and check everything- all ok. I had used a new rebuild kit, set pop off at 22 psi with 2.3 n/s. Main jet 150, pilot 120, low speed at 1 turn, high speed at 1.5 turn. I blew out all the passages and visually checked the gaskets.
Still didn't want to start. It seemed to drip an excessive amount of fuel from the return line when I took it off the carb.
So I swapped for a carb I knew worked (Mikuni 44mm SBN, not Yamaha OEM).
Now it started up and ran fine, needed a little tuning.
Swapped the fuel pump from the good carb to the rebuilt carb and it did the same thing. Fires up with starting fluid but won't idle and seems to die out.
Blew out all the passages again and rechecked everything- still that carb won't work. This carb looks good- no deposits or corrosion in any of the passages. She just bought the ski and the guy said it was always hard to start- needed choke and starting fluid. She rode it last weekend and said it wouldn't idle good and seemed like it lacked power.
What do you think it could be?
[ September 21, 2002, 10:28 PM: Message edited by: SubmarineAZ ]
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