crf450 04 hard to start and cuts out !" - Page 2

tigmaster · 08-10-2008, 03:01 PM

But it doesn't do this all the time? Does it ever just die while it is running or does it usually just cut out right after it is started?

turtlemann14 · 08-10-2008, 03:08 PM

i think the fuel system needs cleaned... along with the float adjusted

minimaterix · 08-10-2008, 03:11 PM

Quote:

Originally Posted by tigmaster

But it doesn't do this all the time? Does it ever just die while it is running or does it usually just cut out right after it is started?

no some times its fine once i get it running and i go its ok but just when im riding it will just bog down and cut out its fine when its just started

tjscott2012 · 08-10-2008, 03:12 PM

so it gets worse as the bike gets hotter? sounds lean to me

minimaterix · 08-10-2008, 03:18 PM

Quote:

Originally Posted by tjscott2012

so it gets worse as the bike gets hotter? sounds lean to me

how can i make it richer sorry im abit of a newb i no its a mixture screw but dont no anythink about it ill replace the spark plug and see if that solves it next sunday if it doesnt i know its the mixture so i can change it on the day i go out thx

turtlemann14 · 08-10-2008, 03:20 PM

turn the fuel screw out for the low rpm

you may have to replace jets or higher rpm

Hardtail · 08-10-2008, 03:52 PM

Float might be sticking, any fuel running out the overflow?
Maybe crap in the carb?

tigmaster · 08-10-2008, 03:58 PM

I would not go making this bike richer yet. That may cause more problems. It does not sound like a lean condition to me. Hardtail is going on the same thing I am questioning which is a stuck float needle or float. My first suggestion would be to disassemble the carburetor and clean it thoroughly. Remember guys, things don't just become lean for no reason. There is an underlying cause for everything. I would suggest a cleaning first.

If you could make a video of this problem occurring that would be great and speed up us solving the problem.

turtlemann14 · 08-10-2008, 04:47 PM

did you put a pipe on it?

tigmaster · 08-10-2008, 06:15 PM

Any little change like a pipe should not cause such a drastic change in engine operation.

08-10-2008, 03:01 PM	#11 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,526 iTrader: (1)	But it doesn't do this all the time? Does it ever just die while it is running or does it usually just cut out right after it is started? __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

08-10-2008, 03:08 PM	#12 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 3,990 iTrader: (0)	i think the fuel system needs cleaned... along with the float adjusted __________________ If it does not move at first, get a bigger hammer!! Myspace Yamaha 1982 xj550 under bike lights Kawasaki klx250 1979 custom fiberglass silencer+ Honda xr200r 1985 stock = Dakaw Dk250 2008

08-10-2008, 03:12 PM	#14 (permalink)
tjscott2012 The Spam man Join Date: Nov 2007 Location: Hurley, Mo Posts: 4,867 iTrader: (0)	so it gets worse as the bike gets hotter? sounds lean to me __________________ 87 Banshee Red Frame, Black plastics. bone stock (for now) -Life is full of ups and downs, so I say, get a quad and jump those mother****ers

08-10-2008, 03:20 PM	#16 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 3,990 iTrader: (0)	turn the fuel screw out for the low rpm you may have to replace jets or higher rpm __________________ If it does not move at first, get a bigger hammer!! Myspace Yamaha 1982 xj550 under bike lights Kawasaki klx250 1979 custom fiberglass silencer+ Honda xr200r 1985 stock = Dakaw Dk250 2008

08-10-2008, 03:52 PM	#17 (permalink)
Hardtail Pro Mototips Member Join Date: Dec 2006 Location: Southeast V.A. Posts: 1,868 iTrader: (1)	Float might be sticking, any fuel running out the overflow? Maybe crap in the carb? __________________ I love the smell of gasoline!! I woke up.....life is good!!!

08-10-2008, 03:58 PM	#18 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,526 iTrader: (1)	I would not go making this bike richer yet. That may cause more problems. It does not sound like a lean condition to me. Hardtail is going on the same thing I am questioning which is a stuck float needle or float. My first suggestion would be to disassemble the carburetor and clean it thoroughly. Remember guys, things don't just become lean for no reason. There is an underlying cause for everything. I would suggest a cleaning first. If you could make a video of this problem occurring that would be great and speed up us solving the problem. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

08-10-2008, 04:47 PM	#19 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 3,990 iTrader: (0)	did you put a pipe on it? __________________ If it does not move at first, get a bigger hammer!! Myspace Yamaha 1982 xj550 under bike lights Kawasaki klx250 1979 custom fiberglass silencer+ Honda xr200r 1985 stock = Dakaw Dk250 2008

08-10-2008, 06:15 PM	#20 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,526 iTrader: (1)	Any little change like a pipe should not cause such a drastic change in engine operation. __________________ --'03 CRF450r-- --FMF Pipe, Pro-Tech Revavle-- --Vortex Basket With Tusk Disks And HP Springs-- --Pro Taper Triple Clamps And Bars-- --Devol Full SP With Moose HGs-- --Renthal 13/50 With R1 Chain-- --Now It Is The End, Probably...-- --'06 CBR F4I-- --Bone Stock-- Check Our Latest How-To Here

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