Motorized Bicycle Engine Kit Forum  

Sponsors



Go Back   Motorized Bicycle Engine Kit Forum > Motorized Bicycle Mechanical Components > Intake & Exhaust

Intake & Exhaust The ins and outs - carburetors, manifolds, mufflers, expansion chambers and more to keep your motorized bicycle running the way you like


dellorto SHA clone carb help

The ins and outs - carburetors, manifolds, mufflers, expansion chambers and more to keep your motorized bicycle running the way you like


Reply
 
Thread Tools Display Modes
  #1  
Old 02-05-2012, 03:34 AM
ipwnr ipwnr is offline
Motorized Bicycle Member
 
Join Date: Feb 2012
Location: maple, ontario
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Unhappy dellorto SHA clone carb help

ok i purchased a dellorto SHA clone carb off of ebay http://www.ebay.ca/itm/Performance-C...9#ht_1841wt_985 and when i put it on my bike (66cc china girl engine) it felt slower like the acceleration was perfect but when i started to hit 30-35kmh+ it was 4 stroking a lot and but idle perfectly and i asked the seller about the jet and he said it was a 65 and I'm not sure what jet size i need for it because with the stock carb i would be able to get to 50-53kmh but with this i only got 45 kmh max.
Reply With Quote
  #2  
Old 02-13-2012, 07:08 AM
Rocksolidperson's Avatar
Rocksolidperson Rocksolidperson is offline
Motorized Bicycle Senior Member
 
Join Date: Feb 2012
Location: Australia
Posts: 56
Thanks: 0
Thanked 0 Times in 0 Posts
Smile Re: dellorto SHA clone carb help

The 4 stroking is caused by an over rich mixture leaning it out to a point where it stops 4 stroking is normally the sweet spot for these motors, you can try raising the c=clip on the needle a notch or two OR if the carb the same as the one on my build here
: http://www.youtube.com/watch?v=789X9lHJ-iI

then turn the brass mixture screw in at 1/4 turns at a time untill the 4 stroking stops.
Reply With Quote
  #3  
Old 02-15-2012, 11:53 PM
ipwnr ipwnr is offline
Motorized Bicycle Member
 
Join Date: Feb 2012
Location: maple, ontario
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Default Re: dellorto SHA clone carb help

thanks for the reply but i already fixed it , you were right about the rich mixture i took the jet out of the stock carb and i used teflon tape around the threads of the jet so it would fit the new carb o and i forgot to mention its actually a clone with no idle mixture screw.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 08:49 PM.


Sponsors

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
MotorBicycling.com