I got the 23 tooth rear sprocket (stock is 30 tooth). I installed it last night and is was easy and straight forward. Took no more than 20 min. I need to shorten the chain about 2 links, so I'll do that tonight.

I will report the results.

 

Mine cam stock with a 26 tooth. That is strange that yours had a 30. Where did you end up getting the 23 tooth from? I never had any luck finding one.

 

Kazuma makes them and actually list them on page 15 of my owners manual as an accessory option. I called them, paid them $25 via credit card, and 2 days later it's sitting on my doorstep. Good customer service. Given I have a known speed with a certain gear ratio, it's easy to calculate speeds with different sprocket (gear ratios). Going from a 30 tooth to a 23 tooth should get me to 38 MPH which is acceptable. My only question is how is it going to do from a start. We shall see this evening.

That change is a 7 tooth difference for me, I'm not sure you would notice a big difference on yours only being a 3 tooth change.

I also have some other good info for you about this engine and some mods. for it to get more power. I'll post it here when I have more time.

 

Also, I found a buyer for my Dingo for what I have in it. I might sell it and I'm looking strongly at this one from Raceway. it's a 200cc unit with a 5 speed manual transmission. Seeing the issue we are having with actual and advertise speed, I'm sure John will be up front about what the actual speed is.

http://www.racewayatv.com/redcat-dxp-200-cc-atv.php

 

Well, I have to report that I am more than happy with the sprocket change. Top speed measured by GPS is exactly as I calculated at 38 MPH, which seems like a huge difference from 29 MPH when riding. It feels like 38 MPH is at the threshold of the stability of the Dingo. Not sure I would want to go any faster on this unit. I noticed very little difference in the torque from a start. The RPM's are lower at cruise also which is nice.

I'm going to do some mods. to the airbox, air cleaner, and exhaust, and that should get me the the little bit of extra power to pull this smaller sprocker. That's just extra because it's really just fine the way it is.

Bottom line: It's a cheap ($25), quick, easy mod you can do to the Dingo 150 (KZM-150) to get about 25% more top end speed out of it.

I was going to sell it (I even have a buyer for it for what I have in it) but now it's a keeper.

 

Glad to hear you are having success with it. I will also try to grab one of those sprockets. Still kind of dissapointing though that you actually have to buy extra parts to make it go the advertised speed.

 

My wifes '04 Yamoto 150 goes 32mph even with the mods I've done. It does accelerate a little faster with a new air filter/exhaust, but isnt any faster on the top speed..

 

I agree Mike. And I'm still a far cry from the advertised speed. But, 38 is plenty fast. Any faster than that, then you looking at needing to balance the tires and all that because they are spinning so much faster.

 

Yeah, increaseing the engine power generally will not result in a faster top speed. It will get you there quicker.

Sort of like a boat and outboard engines. If you have a Bass Boat with a Mercury 150 on it, and it has a top speed of 70 MPH, adding another Mercury 150 to it will sure get you out of the hole quicker, but your top speed will still be only approx. 70 MPH because you are limited to the propeller RPMS and that hasn't changed. You just added another one to it.

 

I have been seriously considering getting a 150 Falcon for my daughter because her legs are too long for the 110 and she is uncomfortable riding it.

Now you say that they calculate the top speeds for all Kazumas wrong. I bought a 110cc 10 months ago for my son from Raceway. Raceways web description states a top speed of 40mph. My Kawasaki has a speedometer. We were riding together on a flat trail and my daughter was right on my tail. Looking down my speedometer was exactly reading 40mph. So I guess you are going to tell me that Kawasaki has my bike configured wrong, or that Raceways ad is correct?

Anyway, now I don't know what to get for my daughter. I would jump at the new Falcon 200, but it has a squeeze clutch and she won't like that. She rides my wife's Recon 250 great. I can't afford another Honda right now and we haven't had any problems with my son's Kazuma. My daughter is almost 13 but I don't want anything over a 250cc for her. Any suggestions on what to look now for her?

Thanks, Teej