Low RPM cough cough....

[unfazed]

Have you checked the Air Filter? If in doubt replace it.

Could have a problem with loose leads on the plug caps.

[anutz]

So,


K and N filter installed....



When i blip the throttle the vacuum pressure DOES hit 230 ish...


At idle they are still at 180 ish...


Any way i will be running it into a mechanics locally soon so will see what they say


But it is my first 600'cc so this might just be me


Anutz

[unfazed]

Did you not read my reply here http://foc-u.co.uk/index.php/topic,15985.msg184456.html#msg184456 

[anutz]

OK,


changed the air filter for a K and N, have not had chance to ride it yet, but it does indeed sound better, less choked, and no sign of any stuttering - hopefully that translates to some nicer behavior when riding at low RPM but its tipping it down here so i am not going to test it tonight


Anutz

[anutz]

Unfazed...


I did see your last reply....not sure what you want me to say


I don't really case about the pressures any more - was just updating people as to where i am at now...the K and N seemed to make a difference - will know when i ride it soon, certainly sounds nicer and richer


Anutz

[anutz]

All,


So i have been out tonight ( little cold!)...


Although the K and N sounds nicer ( i think...) it still has made no difference to the ride at low RPM


The point was made earlier in the thread about not being concerned about the pressures in my carbs....


I know it is important they are sync'd but, why is it so un-important that they are roughly 50mm down on what they are specified at in the manual....?


I know conditions where this is quoted are based at the Yam factory but is there no valid reason to consider the pressures....


Has anyone else measured there pressures, and were they near the quoted values 230-250?


I will check the TPS, the Idle is set fine, so no issues there


Anutz