Go Back   DIY Go Kart Forum > Building Plans And Advice > Mini Bikes, Trikes, and Choppers


Thread Tools Display Modes
Old 08-18-2019, 01:01 PM
batman3n1 batman3n1 is offline
Junior Member
Join Date: Aug 2019
Location: Santa Maria, CA.
Posts: 6
Thanks: 3
Thanked 0 Times in 0 Posts
Default Carb Setting Question

When setting up my carb and doing the spark plug tests, does the bike have to be ridden under load or can I just lift the rear wheel for testing?

Where I live it would be hard to find straightaways long enough to ride it.

Reply With Quote
Old 08-18-2019, 01:34 PM
mckutzy mckutzy is offline
Senior Member
Join Date: May 2008
Location: bc, canada
Posts: 7,498
Thanks: 840
Thanked 1,792 Times in 1,482 Posts

Honestly at the time when I had been doing testing.. I did just that.... block it right against a wall, jack it up so it wont flop off under motion....
(Under load is the best as this is what itll need during the ride....)
Carry on... Itll at least get you a bit closer to what you want/need...
10yr+ club..... My current ride- http://www.diygokarts.com/vb/showthread.php?t=5461
Reply With Quote
Old 09-12-2019, 05:02 PM
madprofessor madprofessor is offline
Join Date: Sep 2019
Location: Jacksonville, Florida
Posts: 89
Thanks: 1
Thanked 26 Times in 21 Posts
Default Don't lift it, put it on a stand.......

Under load is how you test your adjustments, not how you make them. Remember the dirt riders' motto "Ride it, break it, fix it, repeat". Set the bottom of the frame on a stand that won't move or fall, be it a bench, pallet, box, whatever's strong. Never try spinning the rear wheel with one hand on the throttle and one hand holding up the machine, that's a disaster waiting to happen. And you ought to see the 3" x 4" section of metal downspout that I caved in thinking just a little throttle before the centrifugal clutch grabs would be okay. It happens suddenly when there's no weight on the machine, and can feel like it jumped into the next county when that grab happens, no catching it. Adjust, ride, readjust, ride some more, etc. Concentrate on the fun part, that you get to ride. Repeatedly.
Reply With Quote
Old 09-13-2019, 01:55 AM
bob58o's Avatar
bob58o bob58o is offline
Sick, Tired, and in Debt
Join Date: Jan 2016
Location: Under the Rothschild Whip
Posts: 7,519
Thanks: 3,228
Thanked 2,252 Times in 1,742 Posts

Under load. Do the plug chops while actually riding.
I have attempted some tuning in the garage. I burned up a band brake holding the brake while applying the throttle to “load” the engine.
History doesn't repeat but it rhymes Name a successful fiat currency in the last 5k years
Reply With Quote

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 -6. The time now is 10:46 PM.