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Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 3:56 pm
by soosh
dennis wrote: seems to me it's just luck with any carb.
Depends what you buy,never needed luck when buying/using a PHBH Dellorto.Most reliable carb for a scooter out the box ive ever found and easy to spec.
Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 4:05 pm
by soosh
A jetex carb delicately being blueprinted....
Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 4:33 pm
by Spanish Fly
Lamaddict wrote:Could someone please list the things you have to do to check and mod a Jetex 22 carb to work and perform properly.
According to Allstyles;
Jetex 22mm Carb Modified. Ref: 1054
* IN HOUSE MODIFICATION FOR BETTER RUNNING
* JETS CHANGED TO ITALIAN
* ATOMIZER MACHINED & MODIFIED
* HOUSING MODIFIED
Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 4:46 pm
by cit205
Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 5:24 pm
by tonydevon
ha ha that pics great
the GP I just bought was fitted with a jetex 22mm, while sorting through the boxes of spares I found another brand new boxed, asked the seller why 2, he said that he was told they were rubbish so bought 2, 1 as a spare????
just no reasoning with some people LOL
both will be "blueprinted" as per above instructions, 28mm dellorto gone in its place
Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 6:39 pm
by dennis
ok whatever,everyone to there own, i'll stick with the jetex till it goes wrong then try a PHBH but i expect that will make a bigger splash.
Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 7:02 pm
by Muppet
Jettex are crap is 10% fact with 90% snob value saying Italiano is best
Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 9:02 pm
by nelson pk
Will a jetex work out of the box on a standard Lammy?............probably.
Is it as good a carb compared to PHBH and other aftermarket ones?..........feck, no!
Would i run one on a tuned machine?...................you must be joking!
Would i run one ever again, at all?......................nope.
I don't think it's snobbery as i wouldn't run a standard Dellorto 22mm carb either! Its a very basic design carb.
Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 9:43 pm
by Doom Patrol
nelson pk wrote:I don't think it's snobbery as i wouldn't run a standard Dellorto 22mm carb either! Its a very basic design carb.
That's as may be, but that's the strength of it. I can cheerfully take one to bits and swap jets with a good probability of getting it right. I could just as easily do that on the side of the road as I could in a workshop. While the modern PHBL, or whatever is undoubtedly a good carb I'm not sure you can say the same about it. There always seems to be to many variables to me and it needs too much setting up.
Re: 'Blueprinting' a Jetex Carb
Posted: Thu Jan 17, 2013 11:28 pm
by scooterslag
Doom Patrol wrote:nelson pk wrote:I don't think it's snobbery as i wouldn't run a standard Dellorto 22mm carb either! Its a very basic design carb.
That's as may be, but that's the strength of it. I can cheerfully take one to bits and swap jets with a good probability of getting it right. I could just as easily do that on the side of the road as I could in a workshop. While the modern PHBL, or whatever is undoubtedly a good carb I'm not sure you can say the same about it. There always seems to be to many variables to me and it needs too much setting up.
Yeah that's one of the things I love about standard set-ups, the jetex thing does seem a pot-luck thing similar to some electronic flywheels on the market- some are good, quite a few are gash. Can't be f@@ked to either waste my time and money on finding out if I've got a good one. :ninja:
