crf450 04 hard to start and cuts out !"

minimaterix · 08-10-2008, 02:16 PM

Right so its hard to start when cold and hot and sometimes the bike just sounds like its dieng then cuts out and it takes ages to start again but only some times other times its great!
also it ticks over by itself i heard its the sparkplug is this correct thx

turtlemann14 · 08-10-2008, 02:20 PM

well for one how cold is cold?

ans what do you mean by it tick over by itself?

minimaterix · 08-10-2008, 02:21 PM

Quote:

Originally Posted by turtlemann14

well for one how cold is cold?

ans what do you mean by it tick over by itself?

cold is when i first get to the track and the bike hasnt been started for a week and tick over means it will run by itself without me giving it any gas
sorry im english so i might say things you dont understand:P

turtlemann14 · 08-10-2008, 02:27 PM

hard starting may mean its running a little lean at low rpm
have you had the compression tested?
so, you mean the bike will idle by it self?(with out you giving it gas)

you should get a new spark plug every year if you can

minimaterix · 08-10-2008, 02:30 PM

Quote:

Originally Posted by turtlemann14

hard starting may mean its running a little lean at low rpm
have you had the compression tested?
so, you mean the bike will idle by it self?(with out you giving it gas)

you should get a new spark plug every year if you can

yeah the compression seems fine but it is just really hard to start i dont know if its me or the bike i have strong legs and i have to giv it the most hardest kick in the world for it to finally start and it does idle by its self but sometimes it will just die i dont know what that problem is

turtlemann14 · 08-10-2008, 02:33 PM

so its hard to turn over? (get the engine to spin)

sounds like it does not spark here and there
check for loose wires and replace the spark plug

minimaterix · 08-10-2008, 02:34 PM

Quote:

Originally Posted by turtlemann14

so its hard to turn over? (get the engine to spin)

sounds like it does not spark here and there
check for loose wires and replace the spark plug

ok thanks im not to worried about that problem tho i need to find out what is wrong about the cutting out stuff because it can be fine riding one second the the next just dies and is a beast to start again

turtlemann14 · 08-10-2008, 02:43 PM

well, there is only two things i can think of that would cause that
one is loss of spark due to wiring or bad plug
and the second is loss of fuel or flooding

tigmaster · 08-10-2008, 02:45 PM

Hmmm... MY CRF450R takes a pretty hard kick to get it going but that is just normal. Once it dies does it start again right away? I know you said it was hard to start after it dies but does it start back up? What happens if you use the hot start lever after it dies? What happens when you start it cold with the choke? What happens when you try to restart it with the choke on after it has died? Does it make any noises when it cuts out? Like does it just stop or slowly drop down in speed until it dies?

Lots of questions but it will help me greatly in diagnosing the problem.

minimaterix · 08-10-2008, 02:55 PM

Quote:

Originally Posted by tigmaster

Hmmm... MY CRF450R takes a pretty hard kick to get it going but that is just normal. Once it dies does it start again right away? I know you said it was hard to start after it dies but does it start back up? What happens if you use the hot start lever after it dies? What happens when you start it cold with the choke? What happens when you try to restart it with the choke on after it has died? Does it make any noises when it cuts out? Like does it just stop or slowly drop down in speed until it dies?

Lots of questions but it will help me greatly in diagnosing the problem.

it doesnt start right away i usualy get really anoyed leave it to cool for abit then restart it and when i use the hot start it usually feels like some of the compression has gone and it dies slowly asif the gas is running out it just sounds like it dies i pull the clutch in rev it and it just dies in about 3 seconds

08-10-2008, 02:16 PM	#1 (permalink)
minimaterix C Rider Join Date: Apr 2008 Posts: 54 iTrader: (0)	crf450 04 hard to start and cuts out !" Right so its hard to start when cold and hot and sometimes the bike just sounds like its dieng then cuts out and it takes ages to start again but only some times other times its great! also it ticks over by itself i heard its the sparkplug is this correct thx

08-10-2008, 02:20 PM	#2 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 3,990 iTrader: (0)	well for one how cold is cold? ans what do you mean by it tick over by itself? __________________ 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, 02:27 PM	#4 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 3,990 iTrader: (0)	hard starting may mean its running a little lean at low rpm have you had the compression tested? so, you mean the bike will idle by it self?(with out you giving it gas) you should get a new spark plug every year if you can __________________ 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, 02:33 PM	#6 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 3,990 iTrader: (0)	so its hard to turn over? (get the engine to spin) sounds like it does not spark here and there check for loose wires and replace the spark plug __________________ 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, 02:43 PM	#8 (permalink)
turtlemann14 Pro Mototips Member Join Date: Oct 2007 Location: West Virginia Posts: 3,990 iTrader: (0)	well, there is only two things i can think of that would cause that one is loss of spark due to wiring or bad plug and the second is loss of fuel or flooding __________________ 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, 02:45 PM	#9 (permalink)
tigmaster Administrator Join Date: Aug 2006 Location: Missouri, United States Posts: 7,526 iTrader: (1)	Hmmm... MY CRF450R takes a pretty hard kick to get it going but that is just normal. Once it dies does it start again right away? I know you said it was hard to start after it dies but does it start back up? What happens if you use the hot start lever after it dies? What happens when you start it cold with the choke? What happens when you try to restart it with the choke on after it has died? Does it make any noises when it cuts out? Like does it just stop or slowly drop down in speed until it dies? Lots of questions but it will help me greatly in diagnosing 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

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