- Oct 4, 2013
What carbs are they?
.The engine is a 79 TI40D with the parallel port head.Intake cam timed at 100 degrees lobe center,1971 650 exhaust cam timed at 103,internal modification for tight piston squish, 9.2 static compression and the stock T140 2-1 pipes with a straight through muffler...On the 32mm Mikuni TM's...#4 slide, the only one offered, 22.5 pilot jet,P6 needle jet,6DH2 needle ,clip in middle groove, #175 main jet.The stock TM jetting is way to rich..I had mounted an air fuel meter and welded in an exhaust bung for the O2 sensor not for absolute readings but to get an idea of what was going on...This set might be slightly lean in the mid range for some riders ...Interesting.
Could you share your settings, or if possible, thoughts on settings for a standard-ish motor?
I run the FCR flatsides on my Commando and they’re grrrrrreat! So I’m certainly not averse to flatslides on my other Brits.
Personally, I think folk overreact with this stuff. Sure, I’d hate to see fuel injection stuck on a ‘29 Brough Superior SS1000 Pendine ! But let’s be honest, mk2 Amal’s are not sexy looking, so there’s nothing lost by replacing them on a T140, especially if it’s for something that works as well as those FCRs do on my Commando...