tag:blogger.com,1999:blog-7406717291819005800.post6810378589016295455..comments2024-03-01T16:12:24.433-05:00Comments on Lowbrow Customs Blog-O-Rama: Customer Bike Spotlight: Magnus's Finnish TriumphKylehttp://www.blogger.com/profile/06727889449927726069noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-7406717291819005800.post-64198367764057357652011-10-27T15:24:30.529-04:002011-10-27T15:24:30.529-04:00Florian, I can only speak for myself, but the inta...Florian, I can only speak for myself, but the intake on my cast iron head was 26,5mm. The intake manifold was 27mm. I ported the head to 27mm so there were no sharp edge and ported the manifolds facing the carbs to 28mm. So I went with a pair of 928 Amals (28mm bore). I also fitted a balance tube between the left and right manifold. To create whats called Venturi effect (google it), I guess the head would have to be ported out to 28mm as well. Then it´s a matter if jetting. I went with a 170 main and a 106 needle jet for now. The Amals I got from Lowbrow came with a 180 main.<br /><br />A wise man said: Two carbs, twice the trouble. But it looks cool.<br /> <br />The camring in my magneto is slightly worn so I can´t get the ignition timing dead even between cylinders, so with two carbs I can carefully adjust the enrichment screw to get the left side a tiny bit more gas.<br /><br />There are people with lots more knowledge about this stuff. I´d check with Wes White at Four Aces for his input. Everything seemes to matter: What sort of cams, compression, ignition and so on. The 6T came with a variety of carbs over the years from a single SU carb to a single Amal 376 monobloc so it´s not really set up for dual carbs. Also a lot of pre units out there are fitted with a later model 9 stud cylinder and aluminum head and most of them are made for two carbs already. So it´s a matter of what your particular engine looks like. Think most Bonnevilles use Amal 930s.<br /><br />/magnusAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-7406717291819005800.post-33007845638081110842011-10-27T05:21:39.131-04:002011-10-27T05:21:39.131-04:00Hello all,
I just have a question, i'm gonna ...Hello all, <br />I just have a question, i'm gonna install 2 carburators on my 6t pre-unit and i'd like to know what is the best amal choice ?? <br /><br />Thanks a lot<br />FlorianAnonymousnoreply@blogger.com