Thread: XPL Problems Help!!!!!!!!
06-05-2009, 04:20 PM #1
XPL Problems Help!!!!!!!!
I have a carb XPL, ski runs fine for 5-10 minutes. After that the ski wants to fall on it's face. Carbs are rebuilt, new fuellines, fuel system has totally been checked out. This ski runs perfect at first and then after that time it goes to crap. Compression checked, cylinder walls, pistons checked. Anybody had a problem like this. Unhooked heat sensor to the head still no difference, plugs look good. Thanks
06-05-2009, 04:23 PM #2
make sure fuel vent not blocked
06-05-2009, 05:30 PM #3
Have you tried switching the fuel selector? It will tell you if its in the baffel. I know you said the plugs look good, have you tried new plugs? Water in fuel maybe? Takes some time to work towards the carbs maybe.
06-05-2009, 08:53 PM #4
no fuel selector on ski, hooked up direct to reserve side. fresh fuel.. Checking the vent. It's weird because it runs perfect and then starts acting up.
06-05-2009, 09:49 PM #5
Ok goes to Crap, what does that mean,? Engine shuts down? rus bad ? What do you do afterwards let it sit and after 5 mins ? an hour It works fine again? In other words what happens after it goes to crap?
06-05-2009, 10:02 PM #6
If the (2) one-way Vent Valves are installed backwards the Fuel Tank will either pressurize or not vent in to relief the vacuum created as fuel is used. (rare)
Try running with your Fuel Cap cracked to equalize pressure of the Fuel Tank to atmosphere to verify this is whats happening. Otherwise go over your Fuel line ==> Barb. connections on theFuel Tank Baffle to verify the right hose is on the right Barb.
Here is a Fuel System diagram of your ski.
Last edited by David_HX_RXP; 06-05-2009 at 10:03 PM. Reason: x
06-06-2009, 05:48 AM #7
Ski runs up to speed then bogs out and falls on it face. Give a few seconds does the same thing again. My friend did a conversion and took a XPL DI and switched everything over from a carb model. I think he has the fuel vents mixed up. That makes the most sense for right now. He had all that stuff out and had to put back in. We'll check per diagram and make sure that is right. Thanks for the help.
06-06-2009, 07:14 AM #8
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