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IMS 2.4 Gallon Oversized Fuel Tank: The ultimate sleek solution to today’s tiny motocross gas tanks

One thing is certain, running out of gas while cranking out laps or blazing off-road trails is definitely no fun. Unfortunately, it is becoming all to common to see motocrossers run out of gas these days. I can personally count half a dozen times in 2011 that pro riders ran out of gas while racing. Ryan Dungey, for example, experienced a heart breaking crawl to a stop while leading the 2011 Freestone outdoor national. The problem seems even more common in amateur motocross. There are several reasons for this trend… one of them being the new, tiny stock gas tanks. Manufacturers of dirt bikes have slowly downsized gas tank volumes over the years. Don’t believe me? Just check out photos of dirt bikes built in the 1980′s! In a quest for better performance, manufacturers have been taking aggressive steps to reduce unsprung weight, and as a result are making smaller fuel tanks.

One great solution to this problem is to mount an IMS Products over-sized gas tank to your ride. IMS Products is a leader in the over-sized fuel tank market, and in our opinion, uses the highest quality standards. One of our team bikes, a 2010 YZ 450f, is notorious for running on empty. The stock Yamaha 450f fuel tank holds a wimpy 1.5 gallons of gas. If you are not constantly refueling or watching the gas level…you’re doomed at some point to be pushing it back to the pits. The IMS over-sized tank that we eventually bolted on was the perfect solution. It holds an ideal 2.4 gallons of gas and is sleek and virtually unnoticeable, proving to be a ‘must-have’ after market product for any 2010 or newer YZ 450f. Ironically, in 2011, Yamaha increased the tank size by 200 cc’s, though not enough to make any difference whatsoever. We have since spotted several pro riders running the same IMS 2.4 we use. So if you are worried about your dirt bike’s fuel capacity and dont enjoy pushing it home… spend your money wisely and give IMS Products a call. Cheers, Rocket 88.

Comments (7)

  • Mike

    Hi, I recently purchased the IMS 2.4 gallon tank and had my mechanic install it on my 2010 YZ450 for all the reasons you mentioned in your post. Unfortunately, once I put some gas in the tank I noticed it was leaking gas from the manifold mounting point on the underside of the tank. Not gushing, just dribbling a bit. All the hardware was installed exactly right and I checked the fasteners to make sure they were snug. The mounting surface on the OEM Yamaha tank was much better (aluminum mount point and o-ring) than the IMS tank which is basically just plastic. I really like the IMS tank, but need to address the leak. Any ideas??

    Reply
    • Chronic MX

      Hello. Yes, this is an easy fix. Once in a while the IMS tank surface on the bottom of the tank where the pump manifold seal fits into the tank, needs to be sanded down with extremely fine sandpaper (very very lightly) to make a buttery smooth finish. You’ll see the plastic surrounding the hole that the pump goes into has tiny circular grooves in it from the manufacturer…you can see them in good lighting or feel them with your fingers. So here is the fix. Take 320 very fine sand paper and sand around the circumference of where the bottom hole of the tank (where pump seats itself into). You only need to sand an inch or less around the hole of the tank…cause thats where the seal will sit. You will notice after you sand that lip area how much smoother it is. The seal from the gas pump will now “stay sealed” and not have any tiny ridges interfering. No gas will leak if you get a smooth finish for the seal to sit on. We actually had a second YZ 450F team bike with the same tank installed drip a little bit of gas out once the Oversized IMS was installed (one drip every hour). We sanded the area around the hole for a much smoother finish to remove any manufacturer grooves… and it never leaked again! :) Try it out and I bet you’ll end any leaks. Let us know…and thanks for following ChronicMX! Like our Facebook page http://www.facebook.com/ChronicMotoX for free giveaways! Cheers Rocket 88

      Reply
      • Mike

        Thanks for the fast reply!! Sounds like good advice. I’ll give this a try…bummer the IMS folks can’t put a little more effort making the mounting surface smoother to prevent this issue. All the best!

        Reply
        • Chronic MX

          No problem, goodluck. You’d be amazed that even a tiny grain of sand or spec of plastic…or even the smallest swirl in the plastic can cause that leak b/c the seal is compromised. IMS said 1 out of 100 need a little sanding to smooth it out. You happened to get that 1 in 100 and should go buy a lottery ticket tomorrow ;)

          Reply
  • Chronic MX

    p.s. To guarantee you stop your leak, it is also a good idea to go ahead and use a brand new O ring seal too. It may not be necessary, but I do not know the condition of your existing seal. The new Oring will seal perfectly with the buttery smooth finish on the newly sanded underside of the tank. Here is the OEM Yamaha part # for a new Oring: 33D-24486-00-00 (its about $10) and will ensure a airtight seal to prevent a leak…especially if your old seal has had a bit of abuse.

    Reply
  • Chronic MX

    Awesome, good to hear buddy. Enjoy that sweet ride, and Hey, if you have a moment, “Like” our facebook page: http://www.facebook.com/ChronicMotoX …we post lots more tips there too, plus have weekly FREE giveaways. Cheers Rocket 88!

    Reply

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