Bike running at 1/4 better than 1/2 or full

[minimotorider]

Hey everyone,
My bike is finally goign better. its as quick as my mates stock cag at 1/4 throttle (muahaha) but anymore and it seems like its running lean so i didn't push it.
Could i get away with the jet kit for the stock carb?

If u let it rev out while riding it at 1/4 it definitely tops out better, its just running out of juice

I heard of the mod with the cable as well where to reposition the pin on the cable, would this possibly fix the situation or will the jet still be the limiter!

[mac90]

id say u will have to jet it up
until you can afford to upgrade it

[Crash Dummy]

As Mac90 said. Install a larger main jet and go from there. Your best off to install the biggest jet at your disposal starting around 76 and go down until the the tune is ideal. Bad news is I know you have an F2 frame so it's pretty much a back wheel off and carby out job to change jets.

I might have a solution for you. Get in touch.

[gromet]

a bigger jet will just slow u down as the won't be a mist, but a bunch of big drops coming out of the jet. I went up 70 from 68 and had no band. I guess all bikes are different.

[Glen]

go up to a 14mm carb like the dell rep or something, i think i only managed to bore my stocker carb out to 12mm or so and it still wasnt so great.

the rep carb on my old cagzilla seemed to hammer all the way to max rpm with no rejetting or what not.

could also be choking you know what with the lame stocker air filter. rip that POS off :P

[minimotorider]

Me and a friend drilled out the stock jet to a .72mm size

For some reason its still responding the same,
I'm suprised though why its struggling so much with a stock carby even redrilled

The review on the right mentioned the ada 44mm head kit had no real issues running with a stock carb, and acceleration was incredible as quoted.
I am not even able to go more then 1/5th throttle, its slightly slower than a stock cag at this 1/5th (my mate is at full throttle)

I noticed the top part where the cable connects to the carby, there is a thread and a nut, i'm not sure how that should look, whether the nut should be all the way up the top of the gold thread, or the thread should be all the way in?

Would that effect it?

Its worth it going back to stock if it can't beat a standard cag

[minimotorider]

I jut ordered one of those 603 walbro kits off daves motors
av930 - DDM WT-603 Carburetor Kit for 47cc Pocketbikes

Does anyone have any settings i should run it on?
This should fix the issue i hope lol

[1968falconxt]

thats a good choice in carb. did u try different clutches, or was it a different problem?

[mac90]

your carb should come pretty much preset to factory settings

when it turns up give it a try first before ajusting the mixture screws only ajust your idle screw to start with & then go by reading the plug

most 603s have a normal factory setting & usually set ok for most cags fine tune later once you know witch way to go

[gromet]

you cant drill the main jet cuase its in a cone shape and if u take away the shape it will lose pressure and have trouble just buy a new pipe like a jet pro.