Hello
It may have been mentioned in a previous post.
But does anyone know what causes the awfull noise (screech) in thrid gear on these things.
Sounds like a bearing or something
Is there a fix
We have changed the oil 3 times so far, still noisy
Any help would be great
Thanks

 

I just got back from some dune riding today. The Tomahawk did OK in the sand. Being fully automatic made it difficult to ride in the sand for my son, not enough torq and poor throttle response. Had some problem with the float in the carb sticking, causing the carb to flod resulting in the engine not wanting to start. A few different times we had to tap the carb to unstick the float, other than that it ran great. This thing has a ton of loose bolts! If you buy one of these quads you really need to go through it with a fine tooth comb. The shocks are stiffer than SH*T! Even with me at 200lbs. on it they are stiff. I am going to try and swap with some LT160 shocks. I still think that after 4 days in the dunes this quad was a good deal.

 

I'm not really sure what you mean, I'd really like to know more about the rear shock but I found your description a bit difficult to follow when you mentioned the "rubber stop"(?) I know about the tabs that hold the shock adjustment ring in place, but I really don't follow you... I definietly think there should be more travel and would like to obtain more if I could. Could you please explain where this rubber stop is on the shock that you''re bottoming out on (as I don't see any rubber)? I'm just not sure what you mean by your description as to where the travel is lacking.

I did however, add a pair of 2000 Suzuki 250 front atv shocks to my Yamoto 150. They are about 1" to 1 1/4" too long to fit into the factory mounts. I'm also a metal fabricator so this was not big deal, I spent all day Saturday making new mounts for the shocks. The difficulty lies in making sure that you maintain the basic shock geometry when re-installing newer and longer shocks to maintain adequate performance. Basically I left the top shock mounts intact while relocating the mounting locations of the "A-arms" about 1.25" outward from their original location. As such this gave me about 1 1/2" wider wheel base with a slightly positive camber before adding any pre-load. By the time I sit on the unit the wheels are perfectly straight. With the 250 shocks it definietly looks WAY more aggressive with the new wheel width and stance and this also improves handling...very cool, but a lot of work. Also I had to lenghten the steering rods on each end by about 1.5 inches too...I don't recomend doing this type of mod unless you REALLY want to get involved and are handy with fabrication and welding... Once you start modifying steering rods and installing new mounts it's "point-of-no-return."

This Sundy the 10 yr old ran into a ditch off the side of the road and flipped one of the Yamoto 150's. He's ok but was shaken around and was able to walk away from the crash. If he didn't have a helmet and other protective gear it could have been a lot worse. It was a narrow, water run-off ditch going downhill right next to the road, so when he turned too sharp and ran into the ditch he flipped forward doing a basic "indo" forward flip. Although he was ok after landing face and hands first, the Yamoto's rear axle broke clean off right at the swing arm assembly...I really don't care, it's an easy fix as soon as new parts come in, as long as he was able to walk away. As you may have read "DirtForAShirt's" review it takes A LOT to break one of these axles. Since this is the 2nd successfull broken axle, I thought I'd share this wreck experience with you guys to know what these can take or not...

Mandrake51

 

OK Let me try to explain myself better. I milled away those two little tabs on the shock body that the spring preload ring sits on so I could take apart the shock, Pulled the spring, preload ring, and plastic sleeve off the shock. The plastic sleeve hides the shaft and rubber bumper. With those pieces taken off I have what resembles a shock body in my hand. And then I can see what little shock travel there is, also I could see the shaft and the little rubber bumper on the shaft. I am a machinist and am constantly modifying everything I own. Well almost everything, I have not touched the wifes Seville STS yet. I too am going to find replacement front shock's. I have read here that lt 160 front shocks bolt right on.

 

In response to lovmyex400, on the Yamoto 110's, they have a high pitch shrill sound in 3rd gear that continues through the break-in process. After you run about 2 gallons of gas through it, the noise will go away. Ride for an hour, then let it cool off for 30 minutes or so. The noise only happens in 3rd gear, so you can ride it a while in second which enables you to continue riding w/o that horrible noise. I ended up changing the oil 3 times also during the first few gallons of gas, trying oil treatments and 60weight oil as well; however, I think it just takes some time for the noise to completely go away. With mine, the noise first started after riding for about 30 minutes, then gradually it increased to 40, then 50, an hour, then it finally went away. Be patient, and good luck.[img]i/expressions/face-icon-small-disgusted.gif[/img][img]i/expressions/face-icon-small-blush.gif[/img][img]i/expressions/face-icon-small-sad.gif[/img][img]i/expressions/face-icon-small-wink.gif[/img][img]i/expressions/face-icon-small-smile.gif[/img]

 

looking for a yamoto dealer in illinois

 

Depends where in Illinois you are. I am in Galena, Illinois and I just purchased 3 yamoto's (2-150's and a 70) from a new place called Menominee Motorsports. Obviously it is in Menominee (between Galena, Illinois and Dubuque, Iowa)
They were good to work with and there prices are great. They can be reached at 815-747-3480 or 815-747-6086.
Thanks for everyone and there posts! It helped me to decide on getting the Yamotos. So far no complaints here....

 

well i got my commando 250cc aka the edge up and running again and shes running great. it ended up being the gear box casing where the gear sits into the casing blew apart. of course, it took out most of the gears as the broken parts were grinding about. it was under warranty and they supplied a full upgrade kit and shes back in running order and running great.

 

Thanks,
I live in the peoria area of illinois.

 

I have finally finished adapting a shock from a late 80's cr80 to the rear of my Yamoto 150. It really was not that tough and increases the shock travel 5X, from 9/16" to 2 13/16". Still have not measured rear wheel travel yet. Probubly went from 1" to 5". The toughest part of the change was cutting away about 60 % of the rectangle tubing that the lower shock mount was welded to, and of course cutting off the stock shock mount. I then could fit the shock down inside the axle carrier. I boxed in what was left and welded it up. Than I just drilled a hole on both sides of the carrier, in the flat plate's, and ran a grade 8 bolt through it with some bushings.

While I have had it apart I pressed out the axle carrier bearings and they felt kind of rough. So I popped out the seals and cleaned them in solvent, blew them out. Gave them a spin and, boy they were noisy. Not good. Same thing for the front wheel bearings. Definitely junk, this quad has less than 7 hrs on it, never seen water. I found replacements on ebay for $20.00, with shipping. I always thought there was a lot of drag when pushing it.

Since I was on a roll I decide to make some wheel spacer's, 1 1/2" for the front and 1" for the rear. Now I am trying to decide what to do with the front suspension. I may just get a set of front shock's from a lt 160 or similar. However Mandrake51 has now got me thinking about longer shocks and moving the a arm's out. I could also use higher qualiy shocks that way. Now that I think about it I used to have a pair of fox shock's from a 78 husky, I should try and find them. I think they have remote resevoir's. That would match the cr80 shock on the back. Well if the part's for my ktm dont show up today( it broke a timing chain) I may just have too much time on my hand's. I will let you know what I end up doing.