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Old 10-24-2020, 01:30 AM   #1
Dicannon66
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Default Carb size question

I'm setting up a for a sportster chop and want to source a carb to replace the old CV carb. Hard mount XL1200S to be hardtailed. It seems the recommended carb from Mikuni is the HSR42mm but I have a friend that says anything over 38mm is too big for my displacement. Lectron has a 40mm and I found a decent deal on an OLD one. Am I looking at appropriate sized carbs for 1200 or should I stay 38mm and smaller?

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Old 10-24-2020, 06:23 AM   #2
magnum45pete
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Default Re: Carb size question

38mm Lectron was factory fitted to some sportsters in the 70's as a factory performance add on for a while, they worked well & the new generation Lectrons are well worth looking at, a tad expensive but well worth fitting,easy carbs to set up, as in no set up needed usually, spot on from the box....give them a call & ask their opinion
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Old 10-24-2020, 08:09 PM   #3
johnjzjz
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Default Re: Carb size question

around my area in jersey you cant give away a lectron - and a 1200 sporty the 42 MM CV is an outstanding carb for all around mileage and performance

today its a very sort after the CV carb for all kinds of harleys all years - you can re sell if in minuets if you decide too
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Old 10-24-2020, 08:45 PM   #4
magnum45pete
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Default Re: Carb size question

the 1st generation Lectrons are almost 50 years old now & probably worn out & they were lacking in a few points, Idle circuits were not great in the early carbs, but the new generation Lectrons are selling like hot cakes, they are a fantastic carb & even beats the still great Mikunis hands down,... you need to check out a new one fella, otherwise your comment is of 1st generation 50 year old carbs,.. & even then they were better than an S&S......
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Old 10-25-2020, 03:56 AM   #5
Dutch Dennoz
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Default Re: Carb size question

Magnumpete , you don’t happen to be a lectron stock holder?��, you made me curious...
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Old 10-25-2020, 09:04 AM   #6
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Default Re: Carb size question

Quote:
Originally Posted by Dutch Dennoz View Post
Magnumpete , you donít happen to be a lectron stock holder?��, you made me curious...


I think Pete's frustration over S&S carbs are well known. I have a super-b on my gennyshovelhead. Super-E on my cone and Evo. Don't get me wrong, I had an excellent CV and Mikuni as well I just don't get his strong dislike for that particular brand.

Expensive? Yup. Old design? Yup. Functional? And then some!
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Old 10-25-2020, 11:13 AM   #7
magnum45pete
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Default Re: Carb size question

I wish I did have shares in Lectron, I'd be very rich in a few years, they are about to really explode on the custom bike market, they already own the dirt digger & snowmobile market,... They are so feckin simple & easy to set up, work at all altitudes, no re jetting as they don't have jets, i used one in the early 80's& was converted, 8 years back I got a NOS 1st Generation that had never seen a bike from when it was made in 75 , It went on & was fantastic compaired to the S&S it came with, when the new ones came out the write up on them was very good & the feedback from people who had them on new Harleys sold me on getting a new one myself last year & have not looked back since, there are good carbs out there, Mikunis, SU's, HD CV carbs are very worth using, a great carb, ust every Harley I have had with an S&S had carb related problems & at least 2 were brand new from S&S, I even had a Twin throat back in the 80's, I liked it but it Iced up a lot, it looked good but that was about it with them, each to their own but I feel like fitting an S&S is like fitting a Linkert, just bigger & more fiddly to set & keep in tune,... have been building & riding chops for 44 almost 45 years so it's not new to me & I know how to tune carbs, I simply like the Lectron & if you ever get a chance to try a new one jump at it THEN make ya own mind up, I think you would be impressed even at the cost which I totally agree it high for what it is,,,,,, they are just so bloody good I do rant on about them, like I would on any good product out there
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Old 10-25-2020, 11:14 AM   #8
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Default Re: Carb size question

Another non fan here.
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Old 10-25-2020, 12:55 PM   #9
Dutch Dennoz
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Default Re: Carb size question

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Originally Posted by magnum45pete View Post
I wish I did have shares in Lectron, I'd be very rich in a few years, they are about to really explode on the custom bike market, they already own the dirt digger & snowmobile market,... They are so feckin simple & easy to set up, work at all altitudes, no re jetting as they don't have jets, i used one in the early 80's& was converted, 8 years back I got a NOS 1st Generation that had never seen a bike from when it was made in 75 , It went on & was fantastic compaired to the S&S it came with, when the new ones came out the write up on them was very good & the feedback from people who had them on new Harleys sold me on getting a new one myself last year & have not looked back since, there are good carbs out there, Mikunis, SU's, HD CV carbs are very worth using, a great carb, ust every Harley I have had with an S&S had carb related problems & at least 2 were brand new from S&S, I even had a Twin throat back in the 80's, I liked it but it Iced up a lot, it looked good but that was about it with them, each to their own but I feel like fitting an S&S is like fitting a Linkert, just bigger & more fiddly to set & keep in tune,... have been building & riding chops for 44 almost 45 years so it's not new to me & I know how to tune carbs, I simply like the Lectron & if you ever get a chance to try a new one jump at it THEN make ya own mind up, I think you would be impressed even at the cost which I totally agree it high for what it is,,,,,, they are just so bloody good I do rant on about them, like I would on any good product out there
I am not doubting you at all, you just got me fascinated with your convintion.
I use a super e and i do not really have a complain so far but i kind of know they use the principal of more is better.
Do you have some guide or lecture about the lectron? Edit , l checked their site a bit better!
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Last edited by Dutch Dennoz; 10-25-2020 at 02:23 PM.
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Old 10-28-2020, 11:06 PM   #10
Larry Ritchey
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Default Re: Carb size question

Mikuni says to install the largest carb that will fit and then jet accordingly.
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