Untill recently the entire fuel system on my 98' 208 was factory stock and worked great untill I noticed my engine wanting to stall at a dead idle, even when warmed up. Runs perfectly above 800rpms. Always used Yamalube, RingFree & Startron/Stabil, never sits for over 2 weeks, etc etc.
I did the following:
- Cleaned filters, replaced separator, plugs, decarb. Engine ran and idled fine when unrestricted (using remote tank). Determined that something in the boats fuel system was restricting fuel flow just enough to bother the engine at idle.
- Confirmed fuel restriction after replacing the old stiff primer bulb, the new one would instantly dimple and collapse when the engine is running, but at higher RPM's it could still suck enough fuel through to keep up.
After a few hours of diagnosis and manually bypassing the various components and sections of fuel line I think I may have found some light at the end of the tunnel. The restriction is at the tank itself to my best approximation it is in the anti-siphon fitting/tank connection elbow/tank 'straw'.............
My question is; has anyone had a similiar issue with this assembly? I pulled these fittings out and the flow seems like it should be fine, no blockages, but when I bypass the assembly and run the same line directly down into the tank it runs fine, no restriction.
Look forward to hearing your thoughts......
I did the following:
- Cleaned filters, replaced separator, plugs, decarb. Engine ran and idled fine when unrestricted (using remote tank). Determined that something in the boats fuel system was restricting fuel flow just enough to bother the engine at idle.
- Confirmed fuel restriction after replacing the old stiff primer bulb, the new one would instantly dimple and collapse when the engine is running, but at higher RPM's it could still suck enough fuel through to keep up.
After a few hours of diagnosis and manually bypassing the various components and sections of fuel line I think I may have found some light at the end of the tunnel. The restriction is at the tank itself to my best approximation it is in the anti-siphon fitting/tank connection elbow/tank 'straw'.............
My question is; has anyone had a similiar issue with this assembly? I pulled these fittings out and the flow seems like it should be fine, no blockages, but when I bypass the assembly and run the same line directly down into the tank it runs fine, no restriction.
Look forward to hearing your thoughts......