Well finally got to put the Raptor on the bike.  The hardest part was getting it over the one cable (throttle cable?).  At first I was just muscling it, but took a sip of my beer, took a deep breathe and danced my way out of it.

All in all, wasn't too hard thanks to that video.

Now my problem.  The bike starts up, but dies instantly.  I did not fill up yet because I was afraid to take it out and have it die on me.  Brand new battery so it shouldn't be that.  Yes it is on "Fuel" or "On" or whatever that bottom one is.

The choke thing (I know it is not called that but I forgot what it was called) was all the way in.  I got it started, and held the throttle a bit and pulled the choke half way.  Stayed running for a bit so I took it down the driveway and back.  Whole time it was good, until I started to back up into the garage.  Died.

Started it up again with it in the middle, pulled it all the way out, died.

So.. any ideas on what it could be??  

Like I said, I pulled on that cable hard and when I first sat on the bike throttle was sticking and after few min went back to normal.  Can it be that?

Or does it need some time for the drained fuel to "get back" into the bike?   HELP!

Oh and I forgot to mention that little bit of gas dripped out of the stock petcock.. Thought I had drained the fuel all the way but when I started unscrewing the petcock gas seeped out. Not sure if the dripping gas got onto something?

Yep sure did. Cap with superglue/clear silicone.

Dave wrote on 08/22/13 at 05:27:52:


How would I go about troubleshooting this?

Here is what I did with that vacuum hose spot

did ya take both clear tubes off the petcock?
your second picture shows the reseve tube uncovered but not the main tube...
have you tried to run it on reserve yet?
retrace your steps...it sounds like the vac port might not be sealed or it could be something you missed.

When i did mine i removed the tank and installed the raptor...it just seemed easier than trying to wiggle it in there with the tank on...

maybe drain the tank again, remove the tank from the bike and start at the begining again...

No leaks from what I can see - I did not put that much sealant actually IN the vac port.. just a lot in the cap.

There is a drain screw at the bottom of the carb, and a rubber hose is connected to it.  If you were to open the screw and run the fuel into a clear bottle....you could check that the flow is sufficient and that the fuel is clean.  Not sure of the amount of time it would take to flow 8 ounces of fuel - but the petcock alone takes 2 min 15 seconds to flow a gallon.  The carb needle and seat, and drain screw will flow slower....but you should be able to drain 8 oz of gas in 15 seconds.

This might confirm if you are getting fuel to the float bowl.

The tank vent problem is easy to identify......open the cap and see if th engine runs normal.  If you close the cap you will be able to ride several miles before enough of a vacuum builds up to cause a problem....the vacuum does not happen instantly.