Jetting on a 1200

[Spider Wales]

I have a 1200 TS, A11 Cams, that has had 10-1 Pistons fitted.

Main Jets at present are 180's. (which I believe is stock, as I am sure all of the other jets are.)

I want to get it Dyno'ed soonish, but as I don't expect my nearest Dyno Guys in Caldicot S'Wales to have a selection of Del-Orto Brassware to hand, to chop and change, has anyone out there got the same set up so I can foresee changes and get those in hand just in case.

 

[The Sock]

180's are massive! Are you sure they're not 130's?
Green Book puts 115-145, and that's back when petrol was more viscous.
For 2023 petrol you're more likely to want something in the110-135 range.

 

[Spider Wales]

I will double check tomorrow, perhaps I read 130 as 180!

 

[andre g]

with a 180 your engine will be drowned

 

[Spider Wales]

"WHOOPS!" My Bad! It's running 118's ,,,,,, That's the problem with being an old fossil and relying on memory!