Ok heres the situation.My first time on here by the way,figred id give it a shot usually can figure it out...Here the deal its bin runnin great fast perfect...for about 8 monthns now ive had it.After riding about 15 minutes today just lost major power..barely moved..finnalt i got 3rd gear extremly slow to move a a steady pace..Getr it home ..in nuetral started it up an as soon as i rev the engine about mid rpm it wants to stall out almost bog out an does stall..kinda hard to start also.Im stumped ..heres what ive done so far to try and fix it..any help input etc would be greatly appreciated..thanks
so far i have:
1.Taken out the whole carb disassembled carb cleaned it thorghly jet everything looked fine
2.took off the aftermarket ignition coil an put the stock one back on same problem still!
3. Replaced the spark plug,old one wasent i too bad of shape though!
4.took off K&N air filter cleaned an tryed even without the filter still same thing
5.Took off after market CDI revlimeter an replace stock one,still same problem!

please any help would be great thanks...

AJ[img]i/expressions/face-icon-small-mad.gif[/img]

 

anyone?

 

Drywall, I have an '04 that has done the very same thing at least twice! Heres what you need to do...Pull off the top of the carb (black plastic cover with 4 screws) this will allow you to pull the slide out of the carb. Be careful becase there is a small rubber "O" ring under the cap and it needs to go back into the same place...(use some Vasaline to hold it in place until you put the cap back on). Once you pull the slide, you will find (or should) a very small metal clip on the needle. You should find the clip is broken and not allowing the slide to function properly. The slide won't come up fully when the engine is running and floodin the mtor out. Go buy three or four new slide needle clips (they are about a buck a piece). The clip shoud go on the the fifth notch on the needle....I bet this fixes the problem! Good luck and ride safe....

 

thanks for the help i had te carb totally apart yesterday dident see any problem but if so iam installing a jet kit which will be delivered come tommorow which will have a new one.However i dont think thats the problem im in the process of changing valve an maybe cam.Dismantled to day an seems valves maybe shot talkin to another tech on another forum told me to look the an use the valve clearance tool an see if the no clearance between the valves ans cam an the wasent in 3 out of 4 so im going to replace valves an cam an go from there then see if it works..if it works then i will put in new jet kit fro the.only problem im having is removing the valves and spring i must need a special tool any suggestions?open to anything though as well

thanks again for repling,
Drywall

 

mine did something like that too an i took whole carb apart which was not the problem. it was the parking brake rev limiter. override it. maybe thats ur issue...

 

well iremoved my parking brake a few months back no problems since that?
the two wires that get disconnected basically get spliced to each other..thats what i did..any problem there?

 

if you did it already then idk what the prob is. mine used to run bad b4 i spliced mine so idk what ur problem is then. when u said u checked the carb an such thats why i thought it could be the park brake rev limiter. sorry i cant help

 

my blaster had the same bogging down problem. i had dirt and all kinds of crap in the carb, just take it apart and clean it with pure gasoline. my z400 hasnt had any problems so far (knock on wood) besides a fouled plug when i first bought it... but with the blaster... ohh man, had to rebuild that piece 3 times!... you said u had ure carb apart, but did you clean it out, and reset the jets?