Maxair HellCat 42 Carburetor for the Yamaha Road Star - FAQ

• What is the Maxair HellCat 42 and why should I purchase it for my Road Star? The Maxair HellCat Mikuni 42 HSR Carburetor is a premium flat slide carb. that allows maximum flow and power gains. This kit has become well known among Road Star aficionados, as the must have for the best power, while retaining real world drivability.

• Can I just install the basic 42 without anything else? No, but we have provided the Maxair HellCat as a turnkey solution!

• I have heard about going pump-less vs. using the OEM fuel pump what's the difference? Pump-less is the way to go! When using our No Pump Mod there is no downside and the upside is never having to worry about your fuel pump dying, leaving you stranded on the side of the road! This must be done correctly however, to avoid fuel starvation issues. Our No Pump Mod kit will do the job right! If you decide to run your stock fuel pump, you'll need the optional float needle in the options. We install that for you! 

• What is the TPS Mod.?  This is a modification we do in house to allow your stock TPS (throttle position sensor) to work with the 42. This greatly improves throttle response performance and gas mileage. We'll need you to send us your TPS for this modification. You can still run your bike during this time without a TPS

• How will I know what jetting to use? Max professionally jets the Carb. to your setup- Turnkey !! We'll simply ask you what your bikes specs (pipe, air kit, engine mods etc.) are, along with other information such as elevation and make a determination based on that and the data we have. We include a Maxair HellCat 42 Quick Start guide with all the options installed. Most of our customers simply install the carb. and they are done. Some will need minor tweaking.

• How is the Maxair HellCat 42 different?  The Maxair HellCat 42 is designed to be turnkey with the ability to purchase all options in one automated process. We then include our expertise in setting up the carburetor for your Road Star as well as the in house TPS Mod. Will the 42 choke work with my bike or should I order your custom choke. The 42 choke is too short to reach the stock choke position and is prone to engaging on its own, causing gas mileage problems, so we have design a superior choke for this application. If you have a question about the length let us know and we'll walk you through the measurement process.

• I have a 42 HSR Carb already, can you work on that? Sorry, as a matter of strict policy we do not take carbs in to work on them. We only work on carbs that we sell. Beware of the multitude of Chinese knock-offs

• I am worried about the recent Chinese knock-offs of the HSR 42. Do you use authentic Mikuni Carburetors? Yes! We purchase our Mikuni HSR 42s from a USA Authorized Mikuni Distributor. They get them directly from Mikuni USA.

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  Maxair HellCat 42 Carburetor for the Yamaha Road Star - Options?

• Maxair HellCat 42 Jetting Kit ( Max professionally jets the Carb. to your setup- Turnkey!)
  

• Modification to Mount OEM TPS (we need your TPS mailed to us? Video)

• Shorter non- flexible Idle Speed Knob ( This shorter version will not damage your push-rod tubes) Running OEM Fuel pump?

• Special float needle valve/seat set- to run stock fuel pump

• The Maxair HellCat Choke cable (available OEM or any length -with a polish aluminum knob)

• No Pump MOD - Complete kit for Eliminating Your OEM Fuel Pump (click here for more info)
  
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  One of the best add-ons I have done. I do suggest having Maxair jet the carb, install your TPS, and add the short idle screw. The installation was a breeze after that. Maxair helped me to get the correct cables and tech department worked with me to ensure my bike was up and running. It is now flying like a champ, this carb is soooo much better then the stock CV. Should have done this years ago. I will be a Maxair customer for life due to the fantastic customer service. Thanks!!! Customer? Craig Comeaux (Williamsburg, Virginia)