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mike costa

2006 Suzuki LT-Z250 QuadSport Z Rev Limited?

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The bike starts right up every time, and sounds great, on flat ground it seems a little under powered, but just going up hills on just forest service roads really slows it down. I know it's only a 250 and I am too big to be riding my wifes bike. Were these bikes limited by the factory?

I picked up this bike from a family member who purchased it new, then let it sit for most of the last 13 years. It has less than 15 - 20 hours on it. I thought this would be a good first bike for my wife, and so far it is, so loves it. 

The first thing I did when I got it was clean the jets on the carb, not knowing what I was doing I am sure I missed other things to look at when I had the carb out. After figuring out how to properly service this carb I plan to pull it again, and give it a more thorough cleaning. Before taking it apart again, I wanted to know what else I should do. 

I did a little research and guys talked about mods to the air intake and and unplugging the exhaust... What's that mean....

I would prefer not to have to purchase a whole new exhaust.

I wouldn't mind installing a little bigger jets, but who is a reputable aftermarket? 

I'm not looking for a race bike, but it just seems like it should have a little more zip.


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Hey mike. 

That bike should have plenty of power for your wife and for you! My guess is it’s just a matter of cleaning the carburetor better and tuning it the right way. I would do that and double check the air intake box for any nests or behaves or blockages.  As far as the exhaust I’m assuming it’s clear and nothing is obstructing it.  

Get yourself a good can of carb cleaner with red tube on the nozzle to get inside the small holes. A can of compressed air with the same red tube and a set of cleaning tips from amazon.  

Remove the carburetor and set yourself up a nice clean area to work. Take it all apart and take your time. Ask as many questions as you want and post pics if need be.  

Once that’s all done and you dial in that air/fuel screw my guess is that she will run like a champ! 

When it comes time to dial in the air/fuel screw let us know. Talk you right trough it. 

Throw a fresh spark plug in as well.   

No need for adding a better exhaust, re-jetting etc.


Sumind Carburetors Carbon Dirt Jet Remove Cleaner, Includes 13 Wire Torch Tip Cleaner Tool, 20 Cleaning Needles and 10 Nylon Brushes Tool Kit for Motorcycle ATV Moped Welder Carb https://www.amazon.com/dp/B07KQYWGGD/ref=cm_sw_r_cp_api_i_wdhsDb48SW7AV

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