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Post by fredperrybruce on Jul 27, 2014 19:45:11 GMT
Hi I've just brought a Vespa PXe with a DR 180 top end , "Now" I've taken the scoot out for a ride today and found it a bit sluggish very loud and feels like I have to rev the hell out of it to get anywhere.Max out at 45mph with very high revs So.. I got the scoot home to check the engine/Carb over to find out I have a crappy JETEX carb 20/20 I was told the new DR top end has had 400 miles run on it!! Would it make any difference if I was to buy a Dellorto 24/24 carb and change the jetting?  ? |
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Post by sbwnik on Jul 27, 2014 20:38:43 GMT
Yes, it should pull better.
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Post by sime66 on Jul 28, 2014 6:53:46 GMT
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Post by fredperrybruce on Jul 28, 2014 17:22:06 GMT
Hi, the exhaust I have is a Pinasco sports (very loud) with a DR 180 kit ,,Don't know what else has been changed?? But as it stands with the crappy carb in at the moment its running rubbish
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Post by henri on Jul 29, 2014 16:19:38 GMT
sorry sime ,but all dellorto carbs are made in the spaco factory in india an have been for years , buy a new spaco an put genuine dellorto jets in an its about 55 quid all in ,saving ya 30-40 quid for a box with dellorto written on it ,it doesnt even get to italy to have its boxes changed , spaco build em under licence an box em in india with dell boxes ,
an my experience with jetex carbs is on brettas ,an they seem to either work out the box or be really hard to get right ,the build quality is crap, also altho sold as jetted for 125/150/175/200 , they all come jetted for gp200 ,maybe its the same deal with the jetex20/20 youve got , ive never seen one so cant say ,but you'd prob find it easier to find a spaco 20/20 an get that set up to match ya kit , theres a few running same sort on here an should be able to give guidlines , in meantime check ya plug colour as it sounds over rich or maybe timed wrong . H
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Post by sime66 on Jul 29, 2014 16:35:43 GMT
I got a 2nd-hand Dellorto, rather than a new Spaco, (Ebay - 18 months ago - £21).  You saying that's a Spaco? |
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Post by henri on Jul 29, 2014 17:32:26 GMT
no ,thats a genuine dellorto as by the casting marks , just that dellorto gets spaco to make em under licence nowadays an has for a while , i dont know when but at some point spaco started using there moulds an they have spaco casting marks an dellorto stampings if bought new now , some 1's with dellorto cast-marks where still made by spaco tho, when they bought the licence they got the old tooling an used it until worn out .
it dont really matter as its just the casting ya need dell or spac , either way you stick genuine dell jets in an it does the job, i was just saying buying a new genuine dellorto carb is a rip coz its def a spaco in a fancy box . an at 21 quid a bargain ,bet ya checked the jets for the "inc" in a box mark that says genuine dellorto tho.
side by side you can see very small diff between them ,spaco castings a little rougher n not finished aswell on outside ,stuff like that ,my moneys on a guy at end of production line cherry pickin the best for dell pile an the ok but not best for spaco boxes ,an the rejects to go out unamed on flea bay , there version of the lottery ,buying scoot parts from india , H
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Post by sime66 on Jul 29, 2014 17:54:20 GMT
Now look at the air screw on the 2nd hand one on Ebay that I linked to yesterday:  What I said was that I thought this might be a Dellorto ('cos of air mix screw and Dellorto stamp on body) with just a Spaco float bowl cover, in which case it might be worth a punt like I took a punt and got a good 2nd hand Dellorto 24.24E on Ebay 18 months ago. Equally it might not, but I thought it was worth a mention. (Yes, I stripped, cleaned, refurbed, photographed (all on above link) and posted for inspection 18 months ago (that was the link I posted before), then I fitted it and it's running lovely. My point, which is a point I took on board from advice given here before I bought mine, was that a good used original Dellorto (which I think this might be), when they crop up, might be worth keeping an eye on if the price stays sensible. (I just went to have another look at it, and the listing has been withdrawn, so it doesn't matter now anyway). |
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Post by fredperrybruce on Jul 29, 2014 19:21:03 GMT
Hi, do you live anywhere near Portsmouth I'm very interested in the Carb!!! Also I'm very confused at the moment,, this carb will fit in my Mk1 carb tray won't it??? I think when I brought the scoot last week it's got a High auto lube lid on it which poorly fits so will have to buy one that does?? Or will I ?? Sorry for the stupid questions I've never owned a Mk1 vespa so it's all new to me
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Post by sime66 on Jul 29, 2014 20:02:41 GMT
- I was not offering my carb for sale; it was an example of what you can find if you look carefully for a good 2nd hand Dellorto and overhaul it. (Which is the advice I was given when I was new on here).
- The carb on Ebay, which I did point out to you yesterday as a possibility, is gone now anyway.
- Henri’s last two posts gave advice on obtaining a decent new 24.24e, and I can’t add to that advice.
- I think the more experienced chaps will also answer your other questions about your carb box better than I can.
Good luck with it though, there's plenty of help on here.
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Post by vespasco on Jul 29, 2014 22:10:38 GMT
If you buy direct from Dellorto (a spaco carb) you can choose all your jets for the same price.
If you feel lucky you maybe able to save ££ on ebay
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Post by henri on Jul 30, 2014 9:29:18 GMT
if ya buy through dellortto they come with dell marked ,"inc" in a diamond shape ,jets already , if from spaco the jets are just marked with size ,the cheap carb rebuild kits on flea bay jets dont even have size markings on them an are advertised as for 125/150, an we all know they take different sizes,
dellortto jets wherever there made are good quality/right sizes, lml genuine not quite as reliable ,an the no-name 1's ya might aswell get a bucket drill a hole in it an hold over carb mouth an pour petrol in it, there seriously all over the place,
as i said above ,my moneys on spaco/ducatti/an others manufacturing stuff under licence taking the best an selling as genuine for top dollar an the 1's that just pass quality control as un-branded . ive seen it done in this country an in india aswell , once spent a week maching "girling" marks of brake cylinders so they could be sold as pattern 1's .
my point was roughly similar to simes ,there are decent secondhand/new carbs out there , haunt e bay an ask on forums ,prefer dellortto but dont discount a carb coz its got spaco written on it ,
an sime , the mixture screws have changed on both dell an spac carbs ,going from rough to fine threads an changing shape/length an from screw to 7mm hex .an as its a secondhand carb the air screw could of been changed ,so not a good way of judging originality/quality . apart from casting marks an stamping codes the only difference ive noticed when holding 2 side by side is a impression of better quality finishing on dell castings, the flashing's an mould marks are totally polished away .doesnt make em work better just look like more care was taken in production .
an fredperrybruce , pm stevievespa ,he's got a 24/24 dellorto carb stashed in my shed , an lives in pompey , you might of found your new carb . H
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Post by fredperrybruce on Jul 30, 2014 20:31:16 GMT
Cheers Aceface,,, just pm him fingers crossed he'll reply back about the carb
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