Rodney68
Well-Known Member
Dont touch the airscrew then. Have you cleaned your aircleaner? If its dirty it will stop enough air getting to the carby for it to perform properly. Also you should check your valve clearances they could be out.
Problem with carby I think 26 mm oko
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Rodney68
Well-Known Member
If the valve clearances are not wright it doesnt matter how much you play around with the carby you cant get it to run properly.
Rodney68
Well-Known Member
Even on brand new bikes i have seen valve clearances way out.
Sweet ill check them an while I'm at it ill re torque the head mate I seen on another tread some where that u should torque them in a special order like on a car is that right or wrong if its right would u know the order
Rodney68
Well-Known Member
What i do when torqueing a head up is start at 5ft lb and start at the left hand top one then right hand bottom one then right hand top to left hand bottom. Only turn each one a bit and keep moving in this way until all is torqued to 5 ftlb. Then set the torque setting to 10 ftlb and slowly turn each nut a bit and keep chris crossing like before until all nuts are 10 ftlb. Then set the final torque setting which is 16 ftlb for my YX 150 Dirtmax not to shore if a YX160 is the same someone maybe able to help with this? Chris cross over the nuts turning only a bit at a time until they are at the wright setting. Then start the bike and run at idle for 10 sec then turn engine off and retorque the nuts at the final setting again and thats it. I check them again a few times over the run in period if i have rebuilt the engine. I hope this helps you i tried to make it as easy to understand as i could some guys do it differantly but this is the way i do it.
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Rodney68
Well-Known Member
Just re torque at 16 ftlb in the chris cross way i said dont undo them mate just i bit at a time if the nuts move and go to the next one so it is torqued evenly.
Rodney68
Well-Known Member
Thats ok mate
Carlts
Certified Computer Nerd
Hey mate,
Before buying a new carby you would be best doing valves clearances as suggested as above, and then venturing to tune the carb. A new carby will most likely just add more problems and need tuning as well.
Carlton
Before buying a new carby you would be best doing valves clearances as suggested as above, and then venturing to tune the carb. A new carby will most likely just add more problems and need tuning as well.
Carlton
Carlts
Certified Computer Nerd
ahhhh that makes sense, I will go measure up what I've got and let you know mate.
Just found out I'm run #36 pilot jet an #100 main I Chevy the valve clearance they needed to be adjusted but I'm still having the problem with it bogin Casey from Dhz told me to richen it up on the air mixture screw but I'm not sure weather to screw it in or out can one of u guys help me with it
[video=youtube;YxpQjDQzX7g]http://www.youtube.com/watch?v=YxpQjDQzX7g[/video]
out means leaner
out means leaner
Rodney68
Well-Known Member
Like i said before this is a good starting point.
This bike is p**sin me of I've fix the problem that I had with the flat spot but now it's got nothink up top like flat out in top gear it's just very flat I don't know weather it's jets or Wat I don't know I'm runing 36 100 main I changed the spark plug cause it was black I got one of the iridium plugs an that's get black after 5 min of ridin I just carnt work it out could some one give me some ideas pls
Carlts
Certified Computer Nerd
Is it old fuel? Water in the carb, blocked airfilter, pinched fuel line, weak spark?
Could be many factors? but could just be running way to rich.
Could be many factors? but could just be running way to rich.
my67xr
Miniriders Legend and Master Spanner Spinning Mode
maybe try the needle clip on the top slot, if it runs better then the main jet is too big
sounds like it to me.
sounds like it to me.
