4 replies to this topic

[barneyman]

Hi,

 

bit of a newbie here...

 

I need to be sure which carb I have before ordering an exhaust kit.

 

j have read the pinned faq but have to be honest and struggled

 

we have a 1992 Mayfair 998cc. I have attached some photos so I hope this will help this slight mystery,

 

we believe it’s an hs2 but maniflow are asking if it’s a 1.5“ 1.75” or 44hif...

many thanks...

Attached Files

•  59DEAEF7-39F5-4B5D-BC16-4E3EC3E3B60D.jpeg   43.91K   4 downloads
•  158B20C2-6D33-4285-BC4D-B7AB1139D95A.jpeg   43.99K   3 downloads
•  A6E996E1-52EB-4845-8EE7-AAAEE0242D27.jpeg   47.37K   0 downloads

[Minigman]

HS4. 1.5” by the looks of it.

[slidehammer]

I agree with he above HS4 (1 and a half inch) would be standard on the 998cc. It is interesting how SU sizing came about. The 4 stands for 8ths above the inch so an HS2 is 2 8ths above the inch meaning inch and a quarter. HS 4, 4 eights above the inch being inch and a half in size. I think only an English company would have come up with such a bizarre way of noting the size of their products.

[steeley]

I agree Hs4 std 998 carb

Edited by steeley, 08 August 2020 - 07:20 AM.

[barneyman]

Many thanks all ??