AUTOKAY Carburetor for Honda Crf50 Xr50 Z50 Crf Xr 50 Z50RStock Size

This is my 4th or 5th one. This is the only one I’ve bought to replace one I’ve bought. THEY JUST WORK. Simple, This one started 2nd kick and barely needed idle adjust. (1425ft) The one I bought 8 years ago finally gave me to much too trouble to deal with from a sticky float needle.

I know I shouldn't be surprised when buying one of these on Amazon cause they are always hit or miss. This one was a BIG miss! Bought for a Honda CRF50F dirt bike. This was the ONLY one I found that didn't have offset mounting holes in relation to the intake port. Well, the mounting holes did NOT line up with the intake (holes were too wide, outward) so I had to grind the hell out of them to widen them inward, so they WOULD line up. After nearly two hours of doing that modification, I finally get the thing mounted up. Turn on the fuel and it starts pouring out the overflow tube and the rear of the carb (float needle doesn't seal). Tried starting it and it did actually run, but poorly. Finally got the float to seal and it stopped leaking but spent another hour trying to tune the carburetor to run smoothly, and that just WASN'T happening. Ran like crap the whole time. Either it would idle high and not accelerate, or it would accelerate, and then die at idle. I am no stranger to these things, been working on engines for 40yrs. Finally gave up on it and used this one for parts to fix the original one! I would not waste your time on this for this application.

If you install this with out tuning it may or may not run correctly. Both mine and a friends needed tuning. We're pretty close to sea level in maryland. Both crf50s are bone stock. Fresh gas, fuel line and fuel filter installed when replacing the carb. What i did to tune. Turn idle up using the top brass screw to where it sounds like you're holding the throttle to about 1/8-1/4 open. Adjust lower brass air/fuel screw to find where it runs the smoothest. 1/8-1/4 turn at a time and wait a few seconds before turning more. Dont bottom out the screw with any force just enough to know youre fully in for reference. Mine came set to 1.5 turns out. Ended with 3.25 turns out on both bikes. The needle clip in the throttle slide where the throttle cable connects was on second to bottom slot. Had a slight hesitation when snapping throttle and cruising at 1/4 throttle on my bike and moved clip to bottom clip slot but made it worse. Put clip in middle slot on needle then throttle was responsive and 1/4 throttle hesitation was gone. Then repeated the elevated idle air/fuel screw adjustment previously explained. Runs perfect now. No hesitation anywhere. Idles great. Starts right up. There are other ways to tune a carbed bike but on these little ones this is all I do. If you have an exhaust or different filter set up or at a much higher elevation you may need to swap jets. Hope this helps someone.

Works just fine

The item was awesome, everything I wanted.

I just got this carb today to replace the old one on my sons Honda CRF50. I took a chance on this as there were no reviews but it was only $9.99 so I thought I would try it. I installed it tonight and it only took about 20 minutes. One thing I noticed is that the throttle slide that goes into the carb on this was brass where the one I was replacinh had a plastic one. It came with an overflow hose attached and the manual choke lever, throttle cap/slide and spring and screw top with a rubber boot for the throttle cable. It also came with a clear tube to replace what I think is the tank vent tube although I did not use it. After the install I was very impressed as it started on the second kick. I did not have to adjust the idle or anything! The bike runs and idles great and my son rode it for about an hour with no problems. It starts on the first kick unless he let's the bike fall on its side then it floods a little but I can start it with only two or three kicks. Very impressed with my $10 investment! I will update if I begin having problems.

used a few of these - they seem to work OK - sometimes they leak a bit - need bowl gasket reseated or needle and seat tweaking - wish they came with a bent cable entry on cap, they would fit better.

Worked for a couple days, float won’t unstick now, just drains the tank when you try to run the bike.

Fit perfectly and works great!

Got the carb and it was perfect fit for 2000 xr50. Worked great after installation. 2 days later fuel is just pouring through it.

Basically a plug and play replacement. 1984 Honda z50r was not running well at all. Switched the main jet in the new carb for the old one. Mild adjustment of the idle and air mixture screws and it runs like it did 40 years ago ! No leaks as others have claimed ( yet ). Although I did grease the float bowl gasket. Will report back in a couple months after some use.

Good fast easy

Exact fit on a 1979 Honda z50. Bolted right on and runs mint now! 28$ cdn and here in 2 days, can’t ask for better.