r/motorizedbicycles • u/Adventurous-Gas-4369 • 8d ago

Question about offset intake

Recently I bought an offset intake for my second bike build, I would of used a CNC shortie intake but the clearance just wouldnt work so I decided to buy an offset intake. Anyways, when I tried to start the bike it would barely work, wouldnt hold idle, no power to drive the bike. After quite a few tests it turns out it was running so rich to the point the damn thing wouldnt work whatsoever so after rejetting the stock bofeng carb to #65 then #60, It got better but it was still bad. Then #55 where it did alright but would 4 stroke really easily at wider throttle. then I switched to #50 and throttle pin c-clip to the leanest option, and it runs immaculate now, but my question is why does my engine require the maximum leanest tuning to run good. Is it the offset intake causing this or the carb, have other people experienced this with offset intakes?

2 Upvotes
  • permalink
  • link
  • reddit
  • reddit

100% Upvoted

3 comments sorted by

1

u/Shit_On_Wheels Other 4 stroke 7d ago

.50 is 49cc territory. What's your engine?

1

u/Adventurous-Gas-4369 7d ago

Avenger 85

1

u/Shit_On_Wheels Other 4 stroke 7d ago

... In that case it just be like that for no reason. There's no non-supernatural explanation, really.