JDMSPEED New Carburetor Replacement For Yamaha Raptor 660 660R YFM660 YFM 660R ATV Quad Carb 2001 2002 2003 2004 2005 Replaces 5LP-14900-00-00 5LP-14900-20-00 5LP-14900-30-00

2001 Raptor 660 fit like a champ. Only had to adjust idle air screws but overall great product.

If you are simply replacing your carburetor on a 660r I highly recommend that you take your old jets out from the old carburetor, clean them and put them in the new carburetor. There are 3 in the left carb and 2 in the right carb. Do one at a time. Also, you will have to adjust both needle meter heights for the main jets of you are not close to sea level. There are videos online if you need help. I do have a moderately modded 660r and at sea level. I found that lowering the eclip on the needle to the bottom setting (most fuel given on throttle) worked just right for me. There are 2 idle mixture screws underneath. 2 and a 1/2 turns out worked fine for me. Remember to turn them all the way in before counting your turns out.

None of the jets in this worked at all. Almost blew my 4 wheeler up. Had to switch everything from the old carb into this one for it to work properly

The car was exact fit, and worked as expected very pleased with the product and the seller

I had lots of backfiring and irregular rpms, I installed it, then un-installed it to see what kind of adjustments I can do such as closing up the air to fuel ratio to minimize that backfiring. Could never get it to run right so I cleaned out my old carb and used some parts from this one. When doing that I noticed that the main jets are much smaller but all the other parts are identical. This was cheaper than buying a rebuild kit. After reading every single review on every single aftermarket carbs on Amazon, the main complaint is jetting. Just buy this one and rebuild your original. You'll be better off. My 660 runs GREAT now.

Bought this for my Raptor 660. It looks identical and mounts right up. I didnt run it as it came for a perfect review but did a few mods based on other reviews that seemed to work great. I didnt have any metal shavings inside as some reported but I did have a big problem with the choke. It took awhile with small long needle nose pliers to get the plunger out to hook up the choke cable. I installed a dyno jet kit immediately so i know what jets are in it. I also used the original slides based on other reviews and transferred the new diaframs over to the old slides. I used the dyno jet instructions to make sure all the settings were correct because I wasnt sure about out of the box settings. I then installed the carb and it fired up after the bowls had fuel. I do have a problem that I narrowed down to the choke. After I took the choke plunger out, putting it back in with some lube it is still super tight and does not move freely. It backfire at mid rev because I dont think the choke closes all the way. I will take care of that will some light polishing later. I do recommend this carb with the said mods. Sorry I couldnt tell you how it was out of the box but I needed to jet it anyway.

Literally took the time to figure out how to write a review for the first time since being a 2012 Amazon shopper because I feel it might help and save money for people in my situation.Long story short, not taking proper care and leaving fuel in tank on my STOCK 660 for months cost me my carb. Before buying this one I bought one of the other carbs on here for about the same price (will write review on that as well) needless to say it ended up in the garbage. I figured I’d give this one a try before biting the bullet and paying 16 times its price for OEM. Glad I got this because I am one of the ones that can say “I threw this in my 05 STOCK 660 out of the box and it’s running great” No issues with performance at all and I ride on the aggressive side. Time will be the real test but for now I couldn’t be more satisfied with this product!

Fast shipping. Open carb to check for debris like I read in some comments, all clean, no sharp edges or aluminum shavings. Installed and fired up first try after quad had been sitting for years and years. Old carbs had leak on bowl gaskets. Bought replacment carb because was about same price as rebuild kit. No leaks, perfect fit, came with eveything needed for the swap. Jets that came in it equal to 170. Had 160 in my carbs from 3500ft MSL, now live at 1000ft MSL so decided to keep the 170 and not use my old 160 due to elevation change.