Bad Bike Day

[askmrjesus]

Originally Posted by marko138

Is that bike carb or FI?

It's carbed, with a fuel pump.

Jojo, the clicking noise sounds like it could be a relay, but it's hard to tell without hearing said clicking noise.

My fuel pump makes what I would call a "whining" noise when activated, YMMV.

Assuming the battery is okay, you need to verify that the pump is getting juice, so check the fuse if you haven't already done so, and check the connections for corrosion, etc... I believe the pump is external on those bikes, so sorting them out isn't too big of a pain. You'll likely have to remove the tank to get to it. The pump will have an in and an out. There may even be a diagram on the bottom of the fuel tank that says which is which.

Get some clear vinyl tubing, and attach it to both ports, then stick both of them into a gas can (with gas in it), and hit the switch, (I usually do this while smoking a cigarette, but since you're a novice, you may want to skip that step...) if gas comes in and goes out, you can rule out a pump problem.

JC

[JoJoYZF]

Originally Posted by askmrjesus

It's carbed, with a fuel pump.

Jojo, the clicking noise sounds like it could be a relay, but it's hard to tell without hearing said clicking noise.

My fuel pump makes what I would call a "whining" noise when activated, YMMV.

Assuming the battery is okay, you need to verify that the pump is getting juice, so check the fuse if you haven't already done so, and check the connections for corrosion, etc... I believe the pump is external on those bikes, so sorting them out isn't too big of a pain. You'll likely have to remove the tank to get to it. The pump will have an in and an out. There may even be a diagram on the bottom of the fuel tank that says which is which.

Get some clear vinyl tubing, and attach it to both ports, then stick both of them into a gas can (with gas in it), and hit the switch, (I usually do this while smoking a cigarette, but since you're a novice, you may want to skip that step...) if gas comes in and goes out, you can rule out a pump problem.

JC

Got it, definitely not a whining noise.

Ill check those things out and then probably pull the tank off. I was figuring on having to do that anyway in order to check the fuel filter and to get to the plugs easier anyway.

I already have a gas can with gas so Ill just grab some vinyl tubing while Im out running errands to check the pump. And Ill skip the smoking step since Im only a mere mortal and dont smoke.

Thanks for the suggestions and if anything else comes to mind feel free to add it to the list. Ive never had to trouble shoot a bike a before so Im completely new to this.

[Gas Man]

Oh yes... the fuel pumped carbed bikes... my buds honda shadow is that way. His would still start but it had a blown relay.

Do you have a service manual? This is why I tell all you grasshoppers to have one.

[JoJoYZF]

I have a haynes manual, no actual service manual.

[HRCNICK11]

A lot of times the fuel and blinker relays are the same and can be swaped to cheak them. Not always but a lot of the time.

I still say try the jump my wifes F4 had a bad battery it would take a charge and would crank the bike for about 5 min 6 seconds at a tiem of course then die. The battery was just weak may be a cell out and the bike would start right up with with a jump from a strong battery.

I assume you have a car and cables its a easy way to check the battery.

Again I ask have you done any maintenance lately it always sems to be the problem. Even if you only lifted they tank or seat to look at some thing you could have pinched a hose or unpluged some thing and did not notice.



Carbed bikes are easy to see if they are getting fuel they have a drain screw on the float bowls you only need to open it. Bad fuel pumps on carbed bikes are common because they are very low pressure and volume. They are only there to over come the pressure of the ram air system and or the fact that the carbs may be higher than the bottom of the tank.

They have to be weak or they would bypass the float valve.

Most carbed bikes will start and idle fine with out the fuel pump aslong as the carbs are filling(lower than the level of fuel IE: fulltank) But then run like crap once the speeds increase or the revs build faster than the carbs can refill.

[Amber Lamps]

I'd put a little gas in the carbs and see if it starts...

Originally Posted by JoJoYZF

I have a haynes manual, no actual service manual.

Gee it's too bad that someone didn't post a way for you to get a manual online for free....

[JoJoYZF]

Originally Posted by HRCNICK11

A lot of times the fuel and blinker relays are the same and can be swaped to cheak them. Not always but a lot of the time.

I still say try the jump my wifes F4 had a bad battery it would take a charge and would crank the bike for about 5 min 6 seconds at a tiem of course then die. The battery was just weak may be a cell out and the bike would start right up with with a jump from a strong battery.

I assume you have a car and cables its a easy way to check the battery.

Again I ask have you done any maintenance lately it always sems to be the problem. Even if you only lifted they tank or seat to look at some thing you could have pinched a hose or unpluged some thing and did not notice.



Carbed bikes are easy to see if they are getting fuel they have a drain screw on the float bowls you only need to open it. Bad fuel pumps on carbed bikes are common because they are very low pressure and volume. They are only there to over come the pressure of the ram air system and or the fact that the carbs may be higher than the bottom of the tank.

They have to be weak or they would bypass the float valve.

Most carbed bikes will start and idle fine with out the fuel pump aslong as the carbs are filling(lower than the level of fuel IE: fulltank) But then run like crap once the speeds increase or the revs build faster than the carbs can refill.

Im about to try the jump right now.

Originally Posted by TIGGER

I'd put a little gas in the carbs and see if it starts...



Gee it's too bad that someone didn't post a way for you to get a manual online for free....

Dont pat yourself on the back too hard, you posted one for a 1999-2002 r6. I dont ride an r6, I ride a yzf600r, different bike.

[Amber Lamps]

Originally Posted by JoJoYZF

Im about to try the jump right now.



Dont pat yourself on the back too hard, you posted one for a 1999-2002 r6. I dont ride an r6, I ride a yzf600r, different bike.

Well there's your problem...


Hmm... that's true but wouldn't the R6 manual help?

[Amber Lamps]

Man I have spent the last half hour trying to figure out how to send you this fucking repair manual!!! Grrrrrr!!!!!