[wscott]

After doing a rebuild on your Moto 4, the next thing is proper maintenance. Maintenance is crucial for enjoying your quad in the coming years. Like any other ATV, it is best to refer to your owner’s manual when caring for your bike’s needs. Not only are these the best procedures to follow for preventing further wear and tear, but Moto 4 servicing when it comes to steering and breaking power transmission systems may also slightly differ from other vehicles. On top of what you already know, here are additional recommendations on how to care for this workhorse properly:

[adavid]

Identifying the specific model is, in general, one of the more frequently asked questions about the Moto 4 and Yamaha ATV models. And for a good reason, as it helps consumers buy the correct parts and accessories for their quad and do the right kind of repairs. There are two ways to do it – by decoding the VIN and deciphering the model code designation. more

[letharion]

For the novice rider, this brute is a fantastic beginner quad. It is a perfect starting point for the experienced mechanic to build a buggy or practice on rebuilding. But for the company that manufactured it, the Yamaha Moto 4 is what has put them on the map of ATV history. For both Yamaha engineers and its current owners, the Moto 4 is a prized vehicle meant for enjoyment and embodies innovation. No wonder that this little truck continues to stick around – and will probably do so for a very long time.

[pyrrhos]

Since most (if not all) Yamaha Moto 4 purchases are secondhand, expect alterations from minor repairs to full rebuilds. The condition and model year of your workhorse and whether the previous owner took care of it or not entirely dictates the extent of what needs to be changed or replaced in your quad. Below are some common things that need to be looked into when buying a used Moto 4:

[JustGamerS]

The introduction of the Yamaha Moto 4 in 1985 occurred when the ATC or three-wheel design dominated the all-terrain scene. Back then, ATCs or all-terrain cycles already had powerful engines but were not the safest or most stable to ride over uneven terrain. Innovators at Yamaha saw that these issues held ATVs back and wanted to trigger the shift to four-wheeled ATVs. And so, Yamaha’s first four-wheeler was born. more

[elavernenasho]

This video shows you how to change the engine oil on a four-stroke Yamaha outboard.

[gregharaksin3]

Chris: Well, you can use the drain, but the main thing is it's very messy, and if you're doing service over the water it's just not an option, you have to take it out through the dipstick so you don't make a mess. more

[dtvan]

Chris Breeden, Service Manager and Yamaha Master Tech: Okay, we've got the top off and we're in the shop, we made sure we got the engine is up to operating temperature so we can get all the oil out of it. Next step, we're going to remove the dip-stick, set it aside, grab the tube (of the oil pump).

[miernik]

Completing the CAPTCHA proves you are a human and gives you temporary access to the web property.

[Guybrush01]

If you are at an office or shared network, you can ask the network administrator to run a scan across the network looking for misconfigured or infected devices. more

[tsxparts01]

If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware.

[williambruss112]

Re: Yamaha 200 4 stroke noise issue more

[Ricochet]

Youve got two fuel pumps, if this is a fuel injected engine as I believe it is. The lift pump which will be on the back of the engine and the high speed pump for putting pressure in the rails. It is normal to hear the whirr of the high speed pump in the VST, I think that is the one you are hearing. If the engine is performing well, I don't believe fuel starvation of the lift pump is an issue. I also don't believe these engines have rocker arms that are adjustable, short of replacing the disc under the lifter, they are preset. Give us more info on this noise. The red plastic ring should be at the bottom of the filter. This is a float that will float on any water in the filter, it is a warning device.

[thefranksteak]

I had time to tinker with the motor today and have some new information that hopefully will help someone give me some direction here. I have read several posts suggesting that this might be a fuel pump issue and they gave suggestions on how to determine if that might be the problem. I first started retracing all my previous steps, from checking to make sure the new fuel filters were tight, to checking all the fuel lines and band clamps that I could get to. I found no air leaks and tightened everything I could get my hands on. I then started the motor and pumped the primer bulb by hand while the engine was running. Someone said doing this might give the extra pressure to the pump that was needed if there was a restriction anywhere and that the ticking might stop, well it didn't. I checked the vent going to the gas tank and it was clear, I even cracked the fill spout to the gas tank in case there was a vacuum on the tank and the ticking still did not go away. After I let the motor idle for a while like this and scratching my head, the tick vanished while I was doing nothing. This is the first time in roughly 30 minutes of idling in the last few days that the tick randomly stopped. I then revved up the engine, only to have the tick reappear and increase as the RPMS increased. Once back to idle though, the tick vanished. I cut the engine off and pulled the back cover off the engine to be able to pinpoint the sound better and to pull my spark plugs to check for carbon build up. Someone also suggested that a plugged O2 sensor can cause this ticking, but does this 4 stroke have a O2 sensor. After checking the plugs and finding only minimal carbon build up, I fired the engine up again and listened to pinpoint the tick. I can't find exactly where it is only that it is in the valve cover area where the spark plugs are on the back right of the engine. However once again the tick has vanished from idle and is only present when the RPMS increase or decrease. I should also add that I changed the oil and put the recommended 6 quarts in the engine, but according to the dipstick it is right at the high mark and maybe a fraction over. I read online where it was actually good to only have it 3/4 of the way up the dip stick. Do I need to drain some out, could this be causing a problem? Sorry for the long post, but I am nervous because I have a offshore trip lined up this weekend and it will be about a week and a half before I can take the boat to the dealer (if it even needs to be taken). Don't know if I should cancel my trip, of if I am just being paranoid over a tick that might be normal. If anyone has one of the engines and has or has not heard this tick, please let me know. Thanks to anyone who tries to help. The last thing I want is to be 20 miles offshore and have my engine blow or break down due to something that I could have potentially avoided.

[Jman]

Re: Yamaha 200 4 stroke noise issue