03 T100 Bonnie Will Idle...will Not Rev Up At All

[friendlydan1]

Greetings! Just purchased a gorgeous blue T-100 with a strange running issue. It sat up for some time after running fine....now it will start easily...but will not rev past 1500 RPM. If the choke is disengaged it stalls...any attempt to increase revs even the slightest amount and it stalls. Spark is nice and white, I drained gas from the carbs and gas tank and added new gas, air filter looks new. It's somewhat hard to think both carbs are completely clogged up... but is that the answer?..is it possible the issue is a problem with the Secondary Air Injection System? It has 18,000 miles on it. The old Triumph guys I've spoken with are are puzzled by this. Dan

 

[243jimb]

Very likely a fuel issue. Things to try are removing the bowls from the bottom of the carbs and removing the idle jet and the main jet from each then give them a clean with carb cleaner. Check the diaphragms by taking the four screws off the tops and make sure that there are no tears in the rubber. Do you know how to check the float levels?

Jim.