- Joined
- Apr 18, 2006
- Messages
- 94
- Location
- Brisbane Australia
I have decided to do a bit of maint on the little berg. This mainly came about when i noticed the head bearings were shot.
I have pulled the carb of to see if i can fix its nasty problem of low bog, popping and farting and being very hesitent and basically unrideable at or around the 1/4 throttle.
I had tried several things to solve some of these issues, i sealed the pipe to stop the after firing, i leaned out the idle mixture screw to help the transition from 1/4 onwards, and hopefully the bog. The popping never stopped, and i wound the idle mixture to less than 2 turn out. This improved it a little.
Now i have just pulled the carb down and found all the jets are standard for an aus 450, with the following
an obdvr needle
178 main
40 idle
200 maj
100 iaj
85 start
The problem i that i have come acros is the needle. When the screw plug is done up and tight, the needle is able to float up and down about 3mm with no resistance. To me this does not seem right, this would allow the mixture to vary at all throttle settings and hence and therefor most of my problems
Is this normal or am i right in saying it is missing something that will stop this freeplay.....
In the parts section and the repair manual it shows what appears to be a spring and washer that sits on top of the clip between it and the screw that holds it in the slide.
Any of the gurus know any more about this would be great............
THANKS :? :? :?
I have pulled the carb of to see if i can fix its nasty problem of low bog, popping and farting and being very hesitent and basically unrideable at or around the 1/4 throttle.
I had tried several things to solve some of these issues, i sealed the pipe to stop the after firing, i leaned out the idle mixture screw to help the transition from 1/4 onwards, and hopefully the bog. The popping never stopped, and i wound the idle mixture to less than 2 turn out. This improved it a little.
Now i have just pulled the carb down and found all the jets are standard for an aus 450, with the following
an obdvr needle
178 main
40 idle
200 maj
100 iaj
85 start
The problem i that i have come acros is the needle. When the screw plug is done up and tight, the needle is able to float up and down about 3mm with no resistance. To me this does not seem right, this would allow the mixture to vary at all throttle settings and hence and therefor most of my problems
Is this normal or am i right in saying it is missing something that will stop this freeplay.....
In the parts section and the repair manual it shows what appears to be a spring and washer that sits on top of the clip between it and the screw that holds it in the slide.
Any of the gurus know any more about this would be great............
THANKS :? :? :?
:eep: :cheers: This thing has never been like this. it now responds to the throttle, cruises without the annoying twitches and the annoying pops and farts have all but gone. A liitle fine tuning it I should get rid of them all together.
