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Yamoto 150cc Review

Old Apr 4, 2005 | 09:51 AM
  #301  
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Default Yamoto 150cc Review

Originally posted by: decdug
Hi All

I am in need of some help again. The front sprocket is loose, and I can't figure out how to tighten it. Any help could be great.
I am pretty sure it is the nut on the end of the shaft. I will take a closer look when I get home this afternoon.
 
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Old Apr 4, 2005 | 09:55 AM
  #302  
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Default Yamoto 150cc Review

Originally posted by: tintsem
anyone know the bolt pattern on the front of the 150's
I am pretty sure I have posted that info some where in this thread. Not sure though and I dont have time to look for it now. I will look for my sketches from when I made wheel spacers and post it when I find it.
 
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Old Apr 4, 2005 | 10:00 AM
  #303  
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Default Yamoto 150cc Review

Went camping over the weekend and the yamoto 150 worked real well for the wife. Only bummer was the battery went dead and it needed to be kick started. Only took a half hearted kick to fire it up, even when cold. No problems with the carb/choke this weekend and it was colder than the quad has been used to. The wife now definitely wants a twist throttle put on it, says she hates the thumb throttle. Must be all those years on a dirt bike. I will most likely have to make up a custom cable to pull that off. Any one here put a twist throttle on their yamoto 150?
 
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Old Apr 4, 2005 | 11:30 AM
  #304  
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Default Yamoto 150cc Review

Where did you go camping at?
 
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Old Apr 4, 2005 | 11:44 AM
  #305  
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Default Yamoto 150cc Review

I have a crack in the rubber housing on the air intake. If your engine races and doesn't idle correctly then I would check this. I temporarily fixed it with super glue and RTV silicone until I get the new part. You also can hear it. Sounds like a vacuum leak. Just passing info along.

I am also going to weld a piece of steel between the nerf bars and the frame on both sides. Mine are very weak and bend fairly easily.
 
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Old Apr 4, 2005 | 02:28 PM
  #306  
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Default Yamoto 150cc Review

Those rubber air intakes that link the carb to the engine really are very poor quality rubber. Both of those ripped on my two 150's. I have since wrapped them in electrical tape since silicon or RTV WILL NOT bond them together. I have done this several times. You have to be sure to wrap it gently (not tight) around the split rubber, otherwise it makes it's way into the crack in the rubber.

Still, very poor. The chinese rubber is characteristically poor in handling the weather, in that it routinely cracks. The real pain is that whenever this crucial part fails, it is a paint to get to because you have to take aprart the front end and remove the gas tank and carb to replace / service it.

Yes, the nerf bars bend and do not hold much weight as they're only bolted to simple angle iron. It is better to brace them as you described. I will be doing this modification myself.
 
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Old Apr 4, 2005 | 02:29 PM
  #307  
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Has anyone had any problems with wobbly wheels? Out of the box, both of my Yamoto 150's have a front tire that wobbles as if the bearing pressed into it is not straight. I know its not from any damage I've done because this is something that I've noticed right after assembly...
 
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Old Apr 4, 2005 | 02:57 PM
  #308  
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Default Yamoto 150cc Review

The problem I noticed with mine is the bolts are not centered and the carb sits on there crooked. Basically, when you put the air cleaner assembly back on you have to pull the carb assembly to the left and this broke the rubber housing. Mine is cracked near the bolt hole so it's very hard to get to with electrical tape.

Also, one of the engine mounts broke right near the berf bar. I had a problem with this bolt working loose so I put something else in their to strengthen it and I just noticed it broke off the casting and at the frame. I assume just from the torque of the motor. It's not ridden very hard.
 
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Old Apr 4, 2005 | 11:00 PM
  #309  
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Default Yamoto 150cc Review

Originally posted by: tintsem
Where did you go camping at?
I went to a place called miami mc trails. It is on hiway 41 between oakhurst and yosemite. I met a few guys form the forum there. it was my first time there and i loved it . Only bummer was sideswiping a tree trunk with my ktm and tearing open my right radiator. I had to ride the xr200 after that, scary how bad drum brakes are. Hope to go back in a few weeks when the ktm is fixed.
 
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Old Apr 4, 2005 | 11:04 PM
  #310  
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Default Yamoto 150cc Review

Originally posted by: kingdave
The problem I noticed with mine is the bolts are not centered and the carb sits on there crooked. Basically, when you put the air cleaner assembly back on you have to pull the carb assembly to the left and this broke the rubber housing.

On my wifes yamoto it is the cable brackett that hits the frame and pushes the carb to the left. I bent the cable bracket in a little bit and ground away part of it to help it clear the frame. it now sits pretty straight and doesnt stress the rubber as much.
 
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