Running issue (reposting)

Brad said:

Hey all,

Posted this in the R3T section, but probably should be here.

I have been having an issue for about a week now that I am having trouble diagnosing.

Current info;
2008 R3T
30,000 miles on it
Stock exhaust, K&N air filter, Power-Tripp's advised tune for stock R3T's.
Checked all connections and vacuum ports/hoses/connections.

Before installing the new tune the bike would (at full operating temp) occasionally loose power when at freeway speeds when either A) holding steady throttle on a down hill incline, or B) when holding a steady throttle on nearly flat ground. (in and around 65-75 mph)

Now with the new tune that all has moved down to around 45-55 mph and has become much more pronounced.
It almost feels like the bike is momentarily starving for fuel.

As stated before; yes I am a former Triumph mechanic. These days I am completely out of that business. So I don't have the connections and contacts at Triumph anymore. Sadly including the Triumph diagnostic software.

My guess is that one of the sensors (TPS or temp) might be going.

Any and all help would be greatly appreciated.

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