The brands that we sell in Colorado have proven track records for providing quality, dependable, UTV, ATV, side by side and dirt bike motor rebuild parts. We sell OEM replacement as well as after market performance upgrades that can make your engine all that it can be. We take the conjecture out of your ATV, UTV, or dirt bike engine upgrade or rebuild by researching and supplying you with the parts you need, leaving out the ones you don't. We combine after market and OEM parts so that our kits are sound as well as high performing. We have a stock motor rebuild or complete big bore stroker performance upgrade kit for all popular makes like Brute Force, Banshee, Raptor, LTR 450, RZR, LTZ 400, CRF 450, YFZ 450, TRX 450, Rhino, YZ 450F and more! All original manufacturers' warranties apply to the parts we sell.
When you are doing a performance top end or complete engine rebuild on your bike in Colorado, more air and fuel is required for the motor to perform precisely. Most bikes come from the manufacturer with a carb set up that is very limited. If you upgrade to an after market carburetor it can make a world of difference on a stock or big bore / stroker motor. Bigger is not always better. We sell you the right carb(s) for your ATV, UTV, dirt bike or side by side motor. We have individual carbs and complete kits shipped free to Colorado for all the popular makes like YFZ 450, LTZ 400, TRX 450, TRX 400EX, CR 250R, Raptor, Banshee, as well as older makes like LT 500 or TRX 250R. We offer jetting specs to assist you tune those carbs. Correct tuning is crucial to maximizing carb performance.
Cylinder head porting is an great motor performance upgrade for your four stroke UTV, ATV, dirt bike or side x side, whether you have a stock motor or big bore / stroker kit. We can port virtually any breed of four stroke engine cylinder head, and our schooled technicians use flow tested and race proven specs. We also like to carry ported heads in stock for popular makes like Brute Force, RZR, Raptor, LTR 450, LTZ 400, TRX 450, YFZ 450, and YZ 450F. We provide assembled and not assembled heads. Price ranges are set to not break the bank, and we can rebuild your head with OEM or after market Kibblewhite standard, +1mm, and +2mm valves. Check out what we have. If you do not see the head you are looking for or you have any questions, just call us at 909-782-8012. The heads for sale on our site for delivery to Colorado are always changing and will always be increasing in number.
We have been in love with Honda since the TRX 250R came out, and that hasn't changed. Honda has continued to put out great ATV's and dirt bikes for years, with models like TRX 400EX, TRX 450R and CRF 450R. We offer a very large selection of motor performance parts, as well as OEM and after market big bore and stroker rebuild kits to assist you restore to working order or upgrade your Honda at a reasonable price.
Kawasaki is a tried and true name that anyone who rides knows. They have built high quality ATVs, UTVs, quads for years like Teryx, KFX, Brute Force, KXF models. One of our personal favorites amidst the many Kawi's we love is the Brute Force 750. We offer several different parts and big bore motor rebuild kits to upgrade your Brute Force 750 engine, and we also have after market performance parts for all other Kawasaki ATV, UTV, dirt bikes and side by side.
Side x sides have become just as popular as dirt bikes, ATV, UTV, and Polaris has taken the lead! With all of the XP and RZR models on the trails and in the dunes the need for repairs and motor upgrades has grown. The cost of a stock or big bore engine rebuild can be high, but we can help. Our motor packages provide good, dependable, quality after market parts and OEM at reasonable prices.
Suzuki has been making great dirt bikes and ATV's for years. From the LT 250R to the LT 450R, their ATVs, UTVs, quads have always been the ones to watch. We provide stock and big bore / stroker rebuild kits and parts for your Suzuki, old or new. So if you are ready to upgrade your Suzuki engine, we have the right after market performance parts you need.
We love Yamahas! Some of the UTVs, ATVs, dirt bikes, and side by sides ever created have come from Yamaha, like the Raptor 700, YZ 450F and Banshee. If you need to restore to working order or you are looking to upgrade your Yamaha motor we have the right combo of OEM and after market performance parts to get the job done right. We have many engine rebuild kits to suit your needs, whether it be a big bore / stroker upgrade or stock rebuild.
We offer several different after market services for your UTV, ATV side by side, or dirt bike. We can do everything from simple carb jetting to building you a complete custom big bore stroker drag motor, and everything in between. We specialize in four stroke head porting, as well as complete rebuild and oversize valve work. We provide re-nikasil for your two or four stroke cylinder(s). We also do custom engine performance upgrades with custom performance parts like cylinder, pistons, stroker cranks, etc, as well as custom big bore stroker engine kits. You can feel sure sending us your Brute Force, Banshee, Raptor, RZR, LTZ 400, Rhino, TRX 450, YFZ 450, YZ 450F, etc. head or cylinder to be rebuilt or repaired. Our technicians have been performing motor rebuilds and repairing motors for over 20 years. We have the technical wisdom and schooling you can trust.
Many do-it-yourself UTV and ATV owners change the exhaust on their vehicles, and for good reason: a higher-quality exhaust system will create much more power. But changing the exhaust on a carbureted ATV, UTV, quad brings on some secondary issues that need to be addressed in order to keep the engine running accurately. The exhaust pipe on your ATV, UTV, quad is tuned exactly for the ATV, UTV, quad . Not to mention, it is also custom shaped in the pattern needed to fit your ATV, UTV, quad without interfering with any other components. If this pipe or its silencer is altered in any way, (whether it is bent in an accident or manipulated by you) it can influence the engine's performance. Here are some tips for tweaking your UTV or ATV exhaust:
There are two fundamental air filter types: paper element filters (such as K&N) and foam filters. It's key to choose the right one for your ATV, UTV, quad. Paper element filters provide great airflow and most times show a dyno benifit. They are the best for ATV's, UTV's, quad's that spend a lot of time in the woods, trails and sand. But when you ride in dusty conditions, every time use an Outerwear or K&N precharger. Without the filter wraps, paper filters can pass fine dust particles, which is why they're not ideal for desert racing or silty conditions. Foam air filters are precribed for desert and extremely dusty conditions. But keep an eye on the cleanliness of the filter as you ride-foam filters can load up with sand and pass some of it into the intake tract. If you're doing sand riding or serious desert, bring an additional clean filter and exchange it out halfway through the day. Dual stage foam filters are remarkable all-around air filters, but don't flow quite as well as the K&N or oiled gauze-type air filters.
This looks to be a very simple thing to do but for most in the heat of the moment and the thrill of getting the ATV, UTV, quad loaded or just out of the garage to ride can be go unnoticed. Oil breaks down and keeping the right amount of lubricant in your engine is sometimes NOT as easy as keeping the holes plugged. Oil can be burnt off through warn piston rings and seep out of unwarned compromised gaskets. Make checking your oil every ride, or at least every few rides, as part of your normal routine. Believe it or not you still have to change the oil in your ATV, UTV, quad from time to time. I know most say it can wait, but oil is the life-blood of the motor so keep it fresh and you will be riding a healthy ATV, UTV, quad. Just like your car, regular oil changes will keep your engine running smooth.
Coolant in most engines performs several different functions. Most think it simply transfers heat to a radiator for cooling. This is only part of the equation though, as it also lubricates seals and stops rusting inside the engine. Most coolant can be ran for years unless the system becomes compromised with debris from within, or in some cases when the head gasket begins to leak and allows engine oil in.
Installing a new spark plug in your ATV, UTV, quad will bring back the power that can be lost as the plug begins to wear over time. Spark plugs are subject to many things including bad gas or an improperly jetted ATV, UTV, quad. At only about $10, swap out your spark plugs twice a year to make sure the ATV, UTV, quad is functioning precisely, and it will keep the ATV, UTV, quad you love running at top performance.
Your tires are the bond between you and the terrain on which you ride. We all know that if the ATV, UTV, quad cannot grip the terrain or becomes unstable at lower pressure that it can end badly. Be sure to accurately inflate your tires, as this will also help them last longer.
Disclaimer: What you read in these blogs are just individual opinions. This is for informational purposes only and is information gathered over several years working in the industry and hands on experience. We realize there will be people who disagree with some of the information posted as well as people who may have more insight. That is what this blog is all about and why we really appreciate your comments as well as formats like this. We all have the ability to learn from each other. So please, read on!
From 2004 to 2008 Yamaha was on the cutting edge of our industry, coming out with three exciting vehicles - YFZ450, Raptor 700, and Rhino 660 and 700. The YFZ led the way for 450cc sport ATVs. The Raptor 700 overhauled the entire industry with...Read More »
The Raptor 700 has been one of Yamahas greatest successes, and there are a lot of options when it comes to motor performance. There have typically been two popular big bores for the 700, the 105.5mm 734cc and 108mm 770cc. The 734cc kit is more...Read More »
Kibblewhite has been making valve train components for over 78 years. Think about that. These guys were making valves before World War II. When Kibblewhite started Lou Gehrig was the biggest name in baseball. That is a long time....Read More »
One of my favorite ATVs is the Kawasaki Brute Force. I love the design of the motor and the power those machines put out....Read More »
I love carburetors. I think the way they work and what they do are really cool, and I like talking about them. I really like to see people add carbs to their stock or big bore motor, because it really can make a big difference....Read More »
The Polaris RZR 800 is a great machine, and it blew up the side x side market as well as making Polaris once again a major player in the ATV industry. Just think how much different it is at our favorite ATV riding spots from 10 years ago. You would...Read More »
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