Quote:

Is your AI removed? Phil I'm guessing your lean if it's blued eight inches down the header. I have a 03 America and it has never had a problem with cold starts. Balancing your carbs is a great idea. Of the 8 new Triumphs I have removed AI, re-jetted, and installed open pipes 7 of them were running lean on the left side. These were brand new bikes, so balancing is a good idea.

I've never installed Triumph brand performance pipes, so I don't know if re-jetting is necessary. Hopefully someone on here will chime in or you could call your dealer.

FYI, I run my bikes rich, gurgling is fine, but I hate popping. Let us know your progress. You might find all you need to do is clean it up, balance the carbs and turn your AF screws out. Good luck.



Sorry I was off line for a few days, but I got my manometer made and learned a few things; 1/4" ID tubing is too big, Marvel Mystery oil is too light for a carb balancing manometer, and that little balance screw is damned hard to turn. I do have a 90 degree angle 1/4 inch drive device, but it is too tall at the 90 degree end to fit straight onto the screw under the tank, and that screw is pretty tight to turn.

It initially had higher vacuum on the left carb and then I got it too high on the right and sucked MM oil into the carb, and now it is too high on the left again and it starts to suck the MM oil out of the manometer tube into the left carb at idle. The manual doesn't say which way to turn the screw to reduce the left carb opening; which way should I turn it to get back closer to balance again?

The PO had a dealer do all the service on this 04 and checking his service records from new, there is no mention of removing air induction or changing the main jets when they installed the long slash TORs, but there is no AI now and there are rubber caps on all the four of the hose bibs on the intake side of the carbs.

I don't know what the AF screws are; are these the idle mix screws or something else? Or are they part of the AI that I don't have?

It started right away with the choke on today in an ambient of mid 70s, and I did hear some pops as I reved it and let it back off while warming up after the choke was pushed in.

Phil in Northwest Arkansas 04 America, Black, Corbin seat, TORs, no AI, 34K