mystery carb...

deckerz · #1 08-23-2009, 01:23 PM

i bought a rc car off ebay about a year ago, it was just for spares really and on the engine it had this carb...

its a little bit of a mystery to me....it has no high speed screw just a twisty thing and has no low speed needle at all.

i need to know what this carb is for not even sure if its for a car, i was thinking its pretty much just like any other carb except you dont have to do anything to the low speed.

zippo855 · #2 08-23-2009, 02:46 PM

did the engine have a blue head on it? i found out its a sanye engine. kinda a veryc heap knockoff, doesnt even really have a web page

that carb looks identical to the one that was on the rs4 i got. i ditched the carb as it was very tempermental getting highside set and still keep it running at idle.

deckerz · #3 08-23-2009, 03:34 PM

the engine was a really dirty tt pro 12 bx engine but the carb was clean apart from the little spots you can see.

BART · #4 08-23-2009, 03:56 PM

The black plastic screw thing is the high speed needle, if you take it all the way out you will see that the end is tapered.

badass_savage · #5 08-23-2009, 04:14 PM

its a rotary carb, you find them on the smaller engines like the .12-.15's and mostly onroad cars.
i beilve the nitro rs4's have the rotary carbs.

deckerz · #6 08-23-2009, 04:24 PM

thanks but what about the lsn it doesn't have one when i look into the carb and has no screw on the side.

BART · #7 08-23-2009, 04:36 PM

The low speed mixture may be factory set and unchangeable. Take a pic of the sides of the carb, the center of that locking nut may be your LS adjustment.

badass_savage · #8 08-23-2009, 04:41 PM

think this is how they are setup, if there is no screw where i put the lsn in the pic then its built in and its just a 1 needle rotary carb.
i dont know much about these carbs so dont take my word for it but this is my understanding... i dont belive rotary carbs have MSN

zippo855 · #9 08-23-2009, 05:08 PM

the lsn your pointing to is just a flat base, and normal carbs have the lsn on the opposite side of the hsn base....... any way evey one i have ever had that had one..
this is just a cheapo carb. ii found a brand new .15 sanye engine on ebay, which is what is on my rs4, for like 50 bucks.

deckerz · #10 08-23-2009, 05:16 PM

think your right bart unchangable. all the nut does is makes it so i can adjust the throttle/brake arm.

badass_savage · #11 08-23-2009, 05:44 PM

yea i realize that. my friend just purchased a rs4 with a rotary carb. has the setup exactly how i have the picture thus the reason i put the stuff where it is.
every carb is different as you can tell.

deckerz · #12 08-23-2009, 08:27 PM

yeah, this carb is flat on each end, no screws.
thanks guys.

i think this can be closed now.

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