Hey guys I have a quick question about the Techno circuit pipe on an A3 engine.
I have a 1995 Tomos sprint A35 engine with a 14.12 dellorto running a stock air filter, no airbox, 59 jet with the tecno circuit pipe and I hit about 38 mph consistently with wicked acceleration.
However I just got a techno circuit pipe for my girlfriends 91 Tomos Bullet with an A3 engine. Before putting on the circuit pipe she was running a 14.12 dellorto with a 57 jet(seemed big to me but PO had it in) with air filter and airbox attached and was hitting 30 mph, consistently. After putting on the circuit pipe and removing the connection boot to the airbox but leaving the stock air filter on and upjetting to a 59 her bike struggles to hit 25 mph. Is this a jetting problem or something else?
Thanks for your help guys.
TLDR: After throwing on a tecno circuit top speed and acceleration dropped.