Motorcycle Modifications, Repairs, Restores, and Upgrades:

adrian · 08-02-2008

I own a 2003 Honda CBR954RR that sat up for almost 2 years. I am in the military and I was stationed in Korea and couldn't take it with me. So, my wife would go into the garage and start it up every few weeks while I was gone.

Anyway, I got back here to the states, did some repairs on the forks and then took it for a test ride around the neigborhood. Not even a mile into the ride the bike started losing power.

I have new fuel in the bike, let me get that out of the way, right away. I put the bike on a stand and fired it up and held the throttle open partially so it wouldn't die again. Fuel is spraying out of the exhaust, so I spray water on the headers and find out that my #1 and #4 cylinder are not firing. I thought maybe plugs, but I swapped them with the #2 and #3 plugs and the #1 and #4 are still not firing.

Before I go too much further, anyone else have any ideas?

russo2 · 08-04-2008

that really sucks
only thing i can think of is check plug wires and ignition source
i gather those two cylinders have compression though?

the spindoctor · 08-05-2008

on the 2 cylinders that aren't firing, pull the plug wire/coil pack and put a spark plug in it, hold it close to a ground like the frame. crank it a few times and see if you have a spark on those 2 cylinders. if you do, then i'd just say you have 2 clogged injectors. i would think that's all it is, since it ran fine before. you may have churned up some old gunk in the tank that is now in the injectors. if you are brave,you can swap injectors and see if the problem moves. if it isn't firing, swap the coils to the other cylinder and see what happens.

are you sure it's fuel in the exhaust and not just condensation from not being used?

adrian · 08-06-2008

Oh yeah.. it is pouring out and reeks just like gasoline. lol. My wild guess is that I am not getting spark. But I will do a spark test tonight.

adrian · 08-09-2008

Well, I am getting spark, so it has to be something else.

adrian · 08-09-2008

Well, I have fire, and when I put my palm over the throttle body it will suck down so I am thinking it isn't rings keeping compression from happening. So, with spark, compression, that leaves air and fuel. I am getting air, so it has to be fuel. I am wondering if maybe the cylinder is just drowning; there is a ton of fuel down in the exhaust, like a faucet that has been left cracked open... like there is no fuel pressure regulation going on. That is my next step I guess... I am in uncharted territory (for me).

Lori · 08-11-2008

you are waaaay beyond my knowledge already. good luck!

adrian · 08-11-2008

Quote:

Originally Posted by skiergirl

you are waaaay beyond my knowledge already. good luck!

I am also beyond my own knowledge...

the spindoctor · 08-14-2008

make sure the vacuum line to your fuel pressure regulator is hooked up, i forgot mine once it and would dump fuel like you wouldn't believe.

adrian · 08-28-2008

Well, my 954's fuel pump arrived, and tomorrow I will install it. Hopefully we are good after that...

08-02-2008	#1 (permalink)
adrian Spider Interwebby Thingy Join Date: Jun 2008 Location: Glendale, AZ (but SATX is home) Posts: 536 Check Out My Blog!	Need help getting my bike running. I own a 2003 Honda CBR954RR that sat up for almost 2 years. I am in the military and I was stationed in Korea and couldn't take it with me. So, my wife would go into the garage and start it up every few weeks while I was gone. Anyway, I got back here to the states, did some repairs on the forks and then took it for a test ride around the neigborhood. Not even a mile into the ride the bike started losing power. I have new fuel in the bike, let me get that out of the way, right away. I put the bike on a stand and fired it up and held the throttle open partially so it wouldn't die again. Fuel is spraying out of the exhaust, so I spray water on the headers and find out that my #1 and #4 cylinder are not firing. I thought maybe plugs, but I swapped them with the #2 and #3 plugs and the #1 and #4 are still not firing. Before I go too much further, anyone else have any ideas? __________________ "I just know that someday someone is going to start a thread here"

08-05-2008	#3 (permalink)
the spindoctor Super Moderator Join Date: Jul 2008 Location: Garland, TX Posts: 49	on the 2 cylinders that aren't firing, pull the plug wire/coil pack and put a spark plug in it, hold it close to a ground like the frame. crank it a few times and see if you have a spark on those 2 cylinders. if you do, then i'd just say you have 2 clogged injectors. i would think that's all it is, since it ran fine before. you may have churned up some old gunk in the tank that is now in the injectors. if you are brave,you can swap injectors and see if the problem moves. if it isn't firing, swap the coils to the other cylinder and see what happens. are you sure it's fuel in the exhaust and not just condensation from not being used? __________________ Justin

08-06-2008	#4 (permalink)
adrian Spider Interwebby Thingy Join Date: Jun 2008 Location: Glendale, AZ (but SATX is home) Posts: 536 Check Out My Blog!	Oh yeah.. it is pouring out and reeks just like gasoline. lol. My wild guess is that I am not getting spark. But I will do a spark test tonight. __________________ "I just know that someday someone is going to start a thread here"

08-09-2008	#5 (permalink)
adrian Spider Interwebby Thingy Join Date: Jun 2008 Location: Glendale, AZ (but SATX is home) Posts: 536 Check Out My Blog!	Well, I am getting spark, so it has to be something else. __________________ "I just know that someday someone is going to start a thread here"

08-09-2008	#6 (permalink)
adrian Spider Interwebby Thingy Join Date: Jun 2008 Location: Glendale, AZ (but SATX is home) Posts: 536 Check Out My Blog!	Well, I have fire, and when I put my palm over the throttle body it will suck down so I am thinking it isn't rings keeping compression from happening. So, with spark, compression, that leaves air and fuel. I am getting air, so it has to be fuel. I am wondering if maybe the cylinder is just drowning; there is a ton of fuel down in the exhaust, like a faucet that has been left cracked open... like there is no fuel pressure regulation going on. That is my next step I guess... I am in uncharted territory (for me). __________________ "I just know that someday someone is going to start a thread here"

08-04-2008	#2 (permalink)
russo2 i am the apeman Join Date: Jul 2008 Posts: 11	that really sucks only thing i can think of is check plug wires and ignition source i gather those two cylinders have compression though?

08-11-2008	#7 (permalink)
Lori Gixxer Girl Join Date: Jul 2008 Location: Kyle, TX Posts: 240 Check Out My Blog!	you are waaaay beyond my knowledge already. good luck!

08-14-2008	#9 (permalink)
the spindoctor Super Moderator Join Date: Jul 2008 Location: Garland, TX Posts: 49	make sure the vacuum line to your fuel pressure regulator is hooked up, i forgot mine once it and would dump fuel like you wouldn't believe. __________________ Justin

08-28-2008	#10 (permalink)
adrian Spider Interwebby Thingy Join Date: Jun 2008 Location: Glendale, AZ (but SATX is home) Posts: 536 Check Out My Blog!	fuel pump for my motorcycle ordered Well, my 954's fuel pump arrived, and tomorrow I will install it. Hopefully we are good after that... __________________ "I just know that someday someone is going to start a thread here"

Motorcycle Modifications, Repairs, Restores, and Upgrades:

Motorcycle modifications and repairs, restoration and upgrades... if you are fixing your motorcycle, post up about it here.