10-11-2014, 07:47 AM #1
Fuelling problem on sn 650 superjet
I just bought 2 sn 650 superjets one is complete and the other is in bits. I'm going to make a project out of my dismantled one but for now want to ride the complete one only problem is the fuel isn't being pumped out of the tank! I've changed the tank pick up put new lines and installed another known working carb but still no fuel, I have sucked fuel into the filter but won't come though when ski is being cranked over, i have also poured fuel into the carb and it hasn't worked, it has spark etc.
please help me I want to ride
10-11-2014, 08:07 AM #2
- Join Date
- Aug 2006
Maybe the fuel selector switch is bad. Try bypassing it, connecting the "ON" fuel line to the one going to the filter and skipping the switch.
10-11-2014, 09:01 AM #3
Nope fuel switch is fine and I tried doing that all ready
10-11-2014, 10:56 AM #4
10-11-2014, 11:53 AM #5
10-11-2014, 02:13 PM #6
- Join Date
- Jan 2006
- Texas City, Texas
Without sounding disrespectful, I just want to clear up something. The fuel is normally pressured to the carbs via tank pressure, and partially sucked via the diaphrams within the carbs. It might help to completely "charge" or prime the whole fuel supply and return system with fresh fuel.
Try using a siphon pump on the fuel return line to suck fuel all the way through the carb from the tank to make sure that fuel is in the carb.
Check your pulse line for any cracks or plugs.
When you put fuel directly in the carb did it actually try to start?
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