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Stella 4T Stalls or Dies AFTER High Throttle/Speed

 
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fintail
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Joined: 06 Jan 2019
Posts: 4
Location: Philadelphia
Stella 4T

PostPosted: Wed Jan 29, 2020 1:16 pm    Post subject: Stella 4T Stalls or Dies AFTER High Throttle/Speed Reply with quote

Stella 4T stalls /bogs down after high speed when I slow down. Runs fine at low cruising speed. Runs fine at high speed,throttle at full. But when I slow down then turn up the throttle it bogs down then stalls. Then a few kicks engine starts and run fine again. Then ride it hard at high speed and stalls again when I slow down. Sometimes does not stall but most of the time dies. Played around with the jet changed to 92 and engine more responsive but high speed is lower and dies after slowing down again. moved back to 95 moved the needle up one notch (rich) but dies again. Possible lean or rich? Clean carb? Cdi / coil upgrade?


Mods:

Uni stage 2 filter
95 main jet
42 pilot jet
needle middle notch
giannelli exhaust without muffler
vent 2T cap
cut orig air box as a fender cover
New battery
evap removenew spark plug
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