Baja ATV – 90cc

by Nick Harris on Apr 2

Baja ATV owners already know this but the Baja 90cc is a fun little all terrain vehicle. I had the pleasure of enjoying a BBQ lunch with my good friend Bill this afternoon and his two sons, age 13 and 14, we’re having a blast motoring around the backyard on two of Baja ATVs. He bought the first quad in 2005 and the other is a 2007 Baja ATV and besides needing to fix one flat tire they have been 100% problem free.

Baja ATV

Baja ATVs are manufactured by Baja Motorsports and are currently available from Pep Boys in the US as well as Canadian Tire in Canada. Different models years may vary but in general the Baja ATV has a 4-stroke 89.9cc engine rated at between 6.5 and 7.1 BHP (Base Horsepower). The Baja ATV requires the use of SAE 10W30 oil. In cold weather SEA 10W50 can be used but remember to change the oil back to 10W30 for summer.

Baja 90cc

Baja 90 Specifications (2009)

Engine Type: 4-stroke 85.9cc rated at 6.3HP with electric starter
Drivetrain: Automatic transmission
Suspension: dual a-arm front and swing arm with mono shocks in rear
Braking: front – dual drum, rear – hydraulic disc
Tires: front 16 x 8-7, rear 16 x 8-7
Chassis dimensions: 57.8 x 43.3 x 34.6 inches (L x W x H), 291 pounds dry weight
Features: parental control, throttle control with key start

Overall, after having watched two teen aged boys ride around on them for over 45 minutes and listened to my friend Bill rave about them, I’d recommend this fun little quad to anyone in the market. Please make sure to keep them well maintained and to follow local age laws and safety laws and they could very well last you for years.

Parts are relatively inexpensive and it has a starting price in the $580.00 range.

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24 Baja ATV – 90cc reviews

Posted by Bryan on 30 Sep

I bought a Baja 90 for my son and he really likes it. I bought it used and was wondering if it came newer headlights.
Posted by Christina on 9 Nov

Hi there! I bought the exact same ATV recently. Did you buy insurance for it? If so, which company?

Thanks!
Posted by brian on 14 Nov

How do you replace the starter?
Posted by cwj on 16 Nov

I’m getting a Baja 90cc clutch for Christmas, I heard its fun.
Posted by Nick Harris on 16 Nov

Hey Bryan, yes, you can pick up newer headlights for the 90cc Baja ATV.

Hello Christina, I highly recommend insuring your property but check with your homeowners policy to see if it’s already covered before buying ATV insurance.

Heya CWJ, yes, clutches are fun! I’m going to assume you mean the Baja 90 is fun, and it is.
Posted by Nick on 16 Nov

Brian – 90cc Baja ATV starter replacement is a fairly straight forward process, so long as you take the time to have the parts, tools, a clean work area and instructions ready before you start.

Your first step should be to pick up an ATV manual on eBay or from your favorite book selling store. It will it tell you everything you need to know about installing the starter as well as every other part on your ATV.
Posted by brenda on 2 Dec

I am looking for a battery for a 2005 Baja 90 cc ATV. Can anyone give me a number off a battery so I can track one down. I bought the machine without a battery. I live in Brockville Ont Canada and I can’t find one anywhere here. Thx
Posted by Mason Ferrell on 3 Dec

Hey I have a baja 90 and I just took the governor off which doubled the speed but I want to know, are there any other mods to make it faster?
Posted by Nick on 7 Dec

Hi Brenda – I’d hit up Walmart for an “Ever Start 12N94B1″ battery for roughly $20.00. Otherwise you’ll need to find the China made “CB7L-B” original battery, which won’t last very long.

Hey Mason, I have to admit I haven’t heard of anyone wanting to trick out their 90cc before but hey . Anything you can do to your baja to make it lighter will make it go faster, lighter tires and rims, alloy bars etc. The next thing you can do is free up the airflow with a performance aftermarket exhaust system and low restriction air filter. I’m not sure if there is a sprocket mod or big bore kit available for the 90cc however, I’ll have to look around.
Posted by Clay on 20 Jan

I recently got a use 2005 baja 90 for my boys. The bumper (grill gaurd) is messed up and i’ve been looking for a new one to no avail. Does anyone know where I can find one and how much would it cost. I also need to find the ‘mud flaps’ that attach to the front fender behind the front tires. Thanks for you time.
Posted by Carol on 28 Mar

Nick- I got my daughter a baja 90 and replaced the battery but it is still just clicking when i push the start button and yes the key is on and the red the on off switch is on “run”…. do you think it would be the starter?
Posted by Nick Harris on 30 Mar

Carol – Since the battery is new use a voltmeter check for continuity at the starter to rule out a wiring problem between the two. Clicking indicates that at least some power is reaching the starter so if it’s not a wiring problem it’s either a damaged or worn out starter or a damaged/siezed engine. I would check to make sure the engine turns over by hand and if it does I would replace the starter, it’s the cheaper of all parts involved. Clicking can occur with damaged brushes inside the starter, not just with engine problems.

Consult your manual for instructions on accomplishing each step.
Posted by andy on 24 Apr

I got a baja 90 but there is no spark
Posted by Lantz on 23 May

Hi I am looking for the best place to order parts for my Baja 90. Fenders, brake light cover and starter switch. My machine runs great however seems quite under powered even after disconnecting the govenor. Any suggestions for improvement on bottom end power?
Posted by laura on 1 Jun

I have a baja 90 kids quad, it will start but wont stay running. Any suggestions?
Posted by garrett on 6 Jun

I have a Baja 90 and I got it from a sports store 2 years ago. It still runs like a champ.
Posted by Mike on 28 Jun

I have a baja 90 2005. Does anyone know how to take off the governor? I am just trying to make it faster. It will be a fun little project. Thanks
Posted by mitchell on 11 Jul

I own a 90cc ATV and I lost the red kill switch on the back, by the muffler. I wonder, can I wire the two wires that run to the plug together?
Posted by Nick on 13 Jul

If the ATV is running when the wires are NOT together then connecting them will most likely act like an engine shutoff. A toggle switch is completely inexpensive so if there is a kid riding it ATV safety would best be served by keeping the feature as designed. Even if you don’t think you’ll ever need it perhaps you may sell it some day, it’s best to keep it intact.
Posted by Nick on 13 Jul

Laura, have you checked the kill switch? Is it working properly? Is it off?

Mike you don’t have to remove it to disable it but if someone under 16 is riding the ATV I don’t recommend it. You only get one brain pan ya know?
Posted by kelly on 25 Jul

Hey, I just bought a 90cc Baja ATV for my son and it runs well but then it wouldn’t start. It just clicks. It has a new ATV battery but that didn’t help, what could be wrong?
Posted by jared on 26 Jul

Where is the governor on the Baja 90 quad and how do I disconnect it?
Posted by Nick on 26 Jul

Hi Jared, the governor on a Baja 90 ATV is located under the left rear fender.

Hey Kelly, the problem is most likely with the ignition coil but you may need a new starter. Check the ignition coil first if you have a voltmeter or get the local shop to test both.
Posted by James on 25 Aug

How much oil does the Baja 90 hold? I want to go riding with my boy shortly and need to know. Thanks.

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