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VM 28 carb set up
Posted: Mon Mar 11, 2013 9:07 pm
by Winnie
Hello,
I have a 2005 500cc Bullet, it has done 26kms from new !, the problem being it runs very poorly popping through the inlet valve & does not seem to run with the choke off and i am convinced its to do with the carb set up. I have removed the PAV, fitted a Hitchcocks trials exhaust & Hitchcocks cone air filter. Could someone please tell me what jets & needle position I should have in for this set up ( it still has the original VM 28 carb fitted ).
Many Thanks
VM 28 carb set up
Posted: Mon Mar 11, 2013 10:18 pm
by Gwilly
Hi winnie...Sounds like the carb is jetted far to weak for this set up.
Have a look at 2013 catalogue online to the left of this screen..Page 16.
Mr H has a chart which will get you fairly close.. regards gwilly
VM 28 carb set up
Posted: Mon Mar 11, 2013 10:34 pm
by Alan R
Hello WINNIE--------- I've replied to your post in "Carb Settings to Alan R" with all the RIGGERS details you'll need....BUT you didn't mention anything about Mr H's TRIALS EXHAUST !!! which is recommended for off-use only (However there is a "mute" available which might make it more acceptable out on the tarmac)..So are you doing this mod. for looks or for actual off-road use ??
VM 28 carb set up
Posted: Mon Mar 11, 2013 10:35 pm
by Alan R
TYPO !!!! ----------- for off road use only ----------
VM 28 carb set up
Posted: Mon Mar 11, 2013 11:32 pm
by Norm
Winnie, is this 26 ks or 26,000ks?
VM 28 carb set up
Posted: Tue Mar 12, 2013 6:07 am
by Beezabryan
I might just take off the carb & wash it out before buggering about with jets etc.
VM 28 carb set up
Posted: Tue Mar 12, 2013 8:31 am
by Edward
Winnie, it might be an idea to check the inlet rubber has not split.
VM 28 carb set up
Posted: Tue Mar 12, 2013 11:38 am
by Alan R
Hi guys----------having just re-read your post WINNIE, have you blanked-off the old PAV pipe attatchment that's in the induction manifold between the carb and the cyl. head ??------ Air into here will WEAKEN the mixture something awful !!! Ideally it should be tapped and blanked-off with a bolt (6mm I think it was )...
VM 28 carb set up
Posted: Tue Mar 12, 2013 11:58 am
by Winnie
Hi all,
Firstly thanks everyone, first time i have used this forum. I have blanked the PAV at the manifold, the inlet rubber is new, the carb is spotless & jets clear and the trials exhaust is fitted with a mute & it is just 26kms. I have checked Alan R jet settings & found that my main jet is a 125 so will order a 130 & try(the others are correct). Alan R I am confused ref the main jet given as a 1mm drill as the hole in my 125 is larger than a 1mm drill ??
Many thanks
VM 28 carb set up
Posted: Tue Mar 12, 2013 8:43 pm
by Alan R
AH --yes !!----------that carries a highly technical, mumbo-jumbo description of >>>>>>>>>>>> TYPO !!