Fuel Mixture fuel mixture

[pianoman8t8]

ok, so I've put on around 75 miles on my bike, and I was wondering when i should switch to a leaner fuelil mixture, and it's currently still at 20:1. I haven't even run a gallon of the 20:1 throught it yet, thought, but I was just wondering. Any ideas? I still have about 1/4 gallon left of the 20:1

-pianoman

 

[Steve]

I don't know the answer to your question, but I'm at exactly the same point as you are, and I plan to burn the whole gallon at 20:1 before I mix some fuel with less oil.

 

[Guest]

You could probably go to 32:1 after your first tank.

 

[sideshowsideswipe]

I went thorugh about three gallons at 20:1 before I switched to 32:1 but like everything else with these things I can't say to what extent it is good for the engine either way.

 

[gone_fishin]

i did a confirmed 20:1 of briggs & stratton for 200 miles, rode it hard but with respect, it's starting to feel really good and it's very reliable.

i've just mixed my first gallon of 40:1, still briggs, it's weaning now and doing great. i changed my plug to a new ngk-b6hs with a hot gap, bumped the needle one groove richer, made a full-breather aircleaner. i should mention the muffler's been fully gutted from the get-go. it thumps very impressively, grooving in real nice now. i can feel enuff power to know i'll be able to use at least a 36 if not a 32 rear sprocket next month.

 

[chieflets]

what notch have you got it on and your mixture screw up top how many turns from fully closed

Just out of curiosity

Chieflets

 

[foyeburger]

im in the same boat . ive got about 300 miles on my 48 cc dax engine and was wondering the same thin . been using 20 to 1 was also wondering when to switch up. daxs phamplet that came with the kit says to bump it up to 25 to 1 after breakin . so whats 32 to 1 and 40 to 1 got me confusd im at ocean level so i dont think i need to change the needle in th carb a notch seems to work fine the way it is. larry ca

 

[gone_fishin]

my dax 70 came with the needle on 2nd slot down. after a lot of messing with it i get my best performance on the 3rd one (i'm as sea-level as it gets)...beefier thump, i can roll at idle and it sounds pretty cool.

the screw is for setting idle, not mixture...set it according to your own conditions.

i use briggs & stratton "easy mix"...it comes in 3.5 oz bottle, i bottle to one gallon for actual ratio of 36:1.

 

[Blaze]

I have over 200 miles on my bike, and I run it on 25:1 all the time. I guess I could probably get more performance by using less oil in the gas, but my plug isn't getting fouled up or anything, so I figure I will just leave it at 25:1. I have a cheap eBay engine, and I don't think it hurts to have the extra oil running through it.

By the way, my mixture is set on the 2nd groove from the top (adjusted by moving the E-clip on the throttle needle).

 

[pianoman8t8]

Also, I looked at the internet about my sea-level height, and Supposedly I'm around 140 ft. above sea level. It ran good on the 2nd groove (from the top), but better low-end power on the 3rd groove (from the top) but also less top-end, and it almost sounded like it mighta been flooding out on the 3rd when WOT.

-pianoman