Triumphrat

caspianthruxton · 11-13-2006

Ok, so i removed the snorkel and it made the bike sound way better. So here is the problem. Now when i'm getting on it around 4k and up it feels like it is falling on it's face. it no longer pulls in the higher rpm's, but rather loses most of it's power. Anyone know why this is? Also i noticed that from the dealer the little hex bolts on the bottom of the carbs one of them is really far out and one is screwed in most of the way. What should i do with them?

SCCTrim · 11-13-2006

Since removing the snorkel you've made it easier for the bike to breathe...yet nothing has changed for the fuel aspect of the equation. I would rejet...sound's like you need a larger main jet.

As for the screws in the carbs....tighten them.

caspianthruxton · 11-13-2006

here are some pics. Tighten them down?

[ This message was edited by: caspianthruxton on 2006-11-13 10:42 ]

sweatmachine · 11-13-2006

Those are the float bowl drain valves, they should be tight. If they're loose that means the drains are open and fuel could/will be running out of the bowls. Not good.

I'd recommend getting the D-shaped tool from newbonneville and messing with your idle mixture a little, that hole is located near the wires for the carb heaters, kind of centered on the float bowls (bottom of the carbs).

Also, you may need a bigger main and possibly may want to add a shim to your needles.

I'd tighten those float bowl drain screws and add a bigger main, and do the D-screw thing first, then maybe add a shim.

SCCTrim · 11-13-2006

If the gold screw's are what you are referring to, they are merely the drain valve's for your float bowls. I have since replaced my keihn's with mikuni's but seem to recall that one did stick out further than the other.

Just make certain they are snug and you'll be fine.

Do you know how your bike is presently jetted?

caspianthruxton · 11-13-2006

it should be jetted to factory spec. I've never touched them and i bought the bike new in august

SCCTrim · 11-13-2006

Ok, you may want to make a minor adjustment to your idle setting, but you'll probably just need to rejet the bike swapping out the mains for something a bit larger....say 115/118

I wouldnt make a very large adjustment to your idle screw with the d-tool as it's better to be a little lean at idle rather than a little fat.

caspianthruxton · 11-13-2006

sounds good. Also i'm going to be putting some epco stainless mufflers on it this winter. Should i go up some on the jets then as well? If so then i will just put the snorkel on and do both at the same time. Thanks for all the help.
TJ

SCCTrim · 11-13-2006

When you buy the new pipes I would assume they will come with new jet's for your carbs. Since you'll be removing the snorkel you may need to jet slightly heavier than what they send you.

Best thing to do is get the bike put on a dyno....preferably one close to home and conveniant to you so you can return to the same one when you do future mods for performance comparisons.

Dyno's eliminate guessing games regarding tuning.

Do you have a D-tool?

AVMECH · 11-13-2006

do not worry about the float bowl drain bolts. One does stick out more than the other, I'd have to look to remember wich. The bolt just screws in and blocks the port for draining fuel. As long as the screw has hit bottom and there is no gas coming out, you are good. Do not try to tighten them anymore as you may damage them. If I remember right, both bolts are the same size and it is the float bowl that has a different depth hole.