Ok, I gotta ask...did you turn the petcock on? Also, do you have a service manual?

Mark
99 R1

 

Yea the petcock is on lol. And I have the supplementary service manual. Is that the same as the service manual?

 

Sorry about the question but had to ask. Yes, the supplementary service manual is for the 00-01. You use the 98-99 manual plus the supplementary. If you have a multi-meter, it should be very simple to check the voltage coming out of the relay and going to the pump. Power to the pump is a black/blue wire.

Mark

 

When checking the power from the relay to the pump, does the battery have to be on? Should the engine be cranking? I know the pump is designed to prime the carbs and then run fully when the bike in on. And what should the voltage be if the relay is working correctly?

 

Key has to be on and that's it. Should have 12 Volts.

Mark

 

wiring harness/fuel issue

Hey I'm having sort of the same problem. A couple of weeks ago, my headlights and the lights behind my instrument panel went out as well. After reading a couple of threads, I realized this was a common problem with the wiring harness burning out. Since then, I have replaced the wiring harness and all my lights are coming on, but now when I start the bike, it shuts off immediately after I release the start switch.

I can hear the fuel pump switch on when I turn on the ignition and the engine kill switch. Also, it will stay on as long as I hold down the start switch, but as we all know, you can't ride a bike like that...

I'm pretty sure it's fuel pump issue as well, but I'm not entirely sure, because the bike is getting combustion, but it's dying like there's no fuel being supplied to it.

I'm kind of a newb to the forum thing. Does anyone have a wiring diagram so that I can see exactly all the electrical components that have to do with the fuel?

 

Hey I'm having sort of the same problem. A couple of weeks ago, my headlights and the lights behind my instrument panel went out as well. After reading a couple of threads, I realized this was a common problem with the wiring harness burning out. Since then, I have replaced the wiring harness and all my lights are coming on, but now when I start the bike, it shuts off immediately after I release the start switch.

I can hear the fuel pump switch on when I turn on the ignition and the engine kill switch. Also, it will stay on as long as I hold down the start switch, but as we all know, you can't ride a bike like that...

I'm pretty sure it's fuel pump issue as well, but I'm not entirely sure, because the bike is getting combustion, but it's dying like there's no fuel being supplied to it.

I'm kind of a newb to the forum thing. Does anyone have a wiring diagram so that I can see exactly all the electrical components that have to do with the fuel?

What year is your bike?

Mark

 

Fuel Problem... or not?

'01 R1 Euro cranks and cranks (strong. and i hooked it up to a running bike to jump just in case the battery was under-powered) but doesn't fire. The bike was sitting for a week or two... before that, it started without any problems. Similar problems to the posts above, but no one posted any fixes...

-When I apply power directly to the pump from the battery it spits out gas just fine (took off the hose connected to the carbs). I can't hear the fuel pump turn on/prime when I turn the key to "on", but I put a power tester to the fuel pump power connector when I turned it "on" and the light came on, then went off after a few seconds like a priming voltage should.

So power is getting to the switch, fuel is coming out the pump, but bike won't start. I drained the carbs and let it sit for a while in case the carbs were flooded, but it didn't work.

I also took the air cleaner off the carbs and put cleaner in there to see if it would fire up for a second just on that, but the bike wouldn't even take that... or else I might think about taking the jets out and cleaning those...

If the relay was bad, would I be able to see the test-light come on when I put it to the fuel pump power connector?

sorry for the long post, just trying to be throrough. Bike is in neutral, everything comes on like normal, just doesn't fire up.
Thanks in advance for anyone who can help me look somewhere I haven't.

 

More than likely, your pilot jets are plugged from sitting. Here's a procedure for cleaning them:

Pull the tank, remove your choke cable, drain your float bowls, loosen the screws on the carb boots, remove entire carb bank and flip it upside down. Pull float bowls, remove your pilot and main jets and clean them with carb cleaner. I'd also squirt a bit of carb cleaner into the fuel inlet ports and also clean the little rubber stoppers. No reason to pull the throttle cables and make sure you put an old rag over the intake ports so you don't lose any screws in unwanted places. After cleaning your pilot jets, it's a good idea to blow compressed air through them to make sure they're open.

Before you clean the jets, while you have the tank off, pull a spark plug and ground it to the engine. Crank the bike and check for a spark. This will tell you if it's fuel or electrical.

Mark
99 R1

 

Thanks for the quick reply, i'll test for a spark and if there is none i'll dive into jet cleaning

 

You answered your own question the problem is in line before the relay