My Dingo 150 is doing the same thing. Cleaning the carb didn't help. Please post any fixes you find. I'll check the coil wires next.

 

kazooooma,
John at raceway sent me a replacement mikuni carb and I changed the coil and the cdi on my own all at the same time and it started up and runs good. Not sure what was the cause of the weird bucking it was doing but it has stopped. Tomorrow if I get to it i will swap back the old coil and cdi individually so I could see which one was bad if any. John seemed to think it was all from the carb.
Tim

 

This morning I switched the cdi with another and it still ran good. I'm guessing the bucking was from the coil which was very loose at the connection I switched over to the higher output coil just to be safe and it was cheap.
Tim

 

Where did you get the coil (Raceway?) and how much?

My Dingo is not bucking just can't rev it above idle when cold, and even for a while after it should be warm, it just bogs down.

 

I got the coil from oregonvintage.com (lots of good info on 150cc engine) for $30. It is a mrp brand. Now I see alot of them on ebay but don't know the quality but it looks the same.

 

Bakermon,

Did you ever solve the issue of your quad idling but not being able to hit the gas. I have the exact same problem with a Redcat VX150 and am at the end of my rope trying to figure it out.

Any help or information would be appreciated. Hope you found a solution.

Bryan

 

heartsfield, Both of my 150's have run great since October when i changed the carbs. John at raceway sent me a mikuni to try for my wife's quad and I bought another a Kehlin 30 mm for mine. The stock carbs on those quads is jetted too lean and not drilled out very accurately. When you hit the throttle it lets in a gush of air but there is not enough gas to keep it going. If I were you I would go to oregonvintage.com tons of good info on the 150's plus he sells jets for the 150 carbs. Many of the 150 quads have Kehlin style carbs.
Hope this helps
Tim

 

bryan,
This is after you checked that the carb jets were clean, cause that would be a simple fix especially if it was running good at one time. Mine both had problems right from the get go.
Tim

 

I bought two Kazumas from Raceway last Christmas a 90 and a 150. Neither ran for more than 5 hours before I started having trouble with them. Due to time I've hired a mechanic to work on these and they are costing me more to fix than I ever imagined. Raceway has had great customer service and the prices were great but I'm not impressed with their products. I guess you get what you pay for. I won't buy Kazuma again.

 

ribbler,
What sort of problems are you having? Since John sent me the new carb and I changed the other I have been totally trouble free. Mine sit for sometimes up to three weeks and with some help I learned to add a little fuel cleaner and always run them out of gas before I leave. They start up right away and off we go. I saw the quality or lack of when they came but when you need two the price is a factor. John honors the warranty and then some. The two 150's I have are easy for beginners and not to small for adults. I would do it again in a heartbeat. You can buy a used quad but around here people ask alot for them and if anyone thinks they are going to be trouble free they are kidding themselves. Some people never change the oil, bang the crap out of them etc. You just have to do what's going to work best for you.
Tim