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I have a Dongfang (sunny) 150cc reverse trike. I thoroughly enjoy the ride every time I'm riding her. The lean factor is to be learned, which is easy, and important. The cam am people are not happy with their turning situation. I have to say i have not ridden a trike but I've ridden a large tricycle , and the turns can't be as smooth as a leaning reverse trike. Their are issues out there concerning shakes and wobbles, but if the front end is set up properly, the ride is as cool as it looks. Hands down.....reverse trike!

Good post alley. Saves the rest of us a lot of time and money. Your knowledge is highly respected on this forum.

Pretty light weight. I have a 150cc reverse trike which weighs 330 lbs and i can do 57 mph under best conditions. Could'nt dream of going faster on a lighter bike. A 60 mph truck comming at you on a two lane WILL blow you over. Gas tank is small also. Mine is 1.4 gal and thats about 100 miles before i don't trust the gas gauge anymore. No reserve on my bike.

Thanks for the replies. Yes i ordered and installed a new donut gasket and tightened each side as i increased torque. I got a new full set of gaskets and i'm gonna take the 14oz sliders and put back in the 12's. the new coil and CDI really added smoothness and response, and it idles better and starts on 1 or 2 sparks. I'll try the new cone filter like alleys and swap out a jet and i'm done. Just looking for optimum performance. Like common sense should tell ya. Wanna go faster, get a bigger engine/scooter. Thanks for your response to my questions. I really appreciate it.....bill

Damn alley" i wanna ride your trike or even just watch it. Those are some serious numerous upgrades-additions. You go boy!

Just completed installing a new free flowing performance exhaust. Its 1" wider opening at the head, where the stock one was 3/4", and has a short 14" muffler. A little louder, ........OK, alot louder but definitely increased performance.

I have tuned my carb today, after installing an iridium plug, as per Alleyoop and Others suggested. Not the plug, the tuning. I have a reverse trike 150cc with a performance variator with 14 oz. sliders. I have 12's also, which i ran but i changed looking for some additional cruising speed. I did develop some casual backfiring when i let go of the throttle from WOT with the new exhaust and sliders.

Here's the reason for this post. I've Googled backfiring and 1 concern is air in. I changed air out and I'm ready to change air in. Some things don't add up to me. For instance, i read that more air in is a good thing. I also read, leaks in air system, is a bad thing. I read cutting a hole in your stock air box is not a good thing. How can that not be a good thing? More air in. Still passing through the filter, i think, but is that not considered a leaky air intake system? How can you have a leak in your air intake?

I've seen Alley's set up and he has a performance cone filter installed directly to the opening of the carb. That is the type of air filter I'm going to install. If a slight slit/cut is made in his filter, or a hole develops some where, does he have a leak in his air intake system? What I'm trying to say is how can any additional air being injected into the carb be a bad thing. ASSUMING you install the proper size jet in your carb, but I'll get to that later.

Why don't people just modify the stock air box, (cut holes in it), to achieve more air in? Why do some air filters come with a length of pipe attached to it before it goes into the carb, other than space/installation reasons? Why is a K&N filter supposed to be superior to other cone filters? Is a performance air intake manifold available/desirable, and something i should add to my plan, which i discuss later.

Now going to jet installation, in relationship to air intake change. It seems like there is a many a way to pull off this more air in, more air out Deal. Why do people choose one air intake over another, and with the different exhaust pressures produced by different performance exhausts, how do you know what size jet to change to in your carb. Swapping out a jet is no ten minute affair and there's got to be some method to the madness of choosing a jet size.

I plan to add a performance CDI and Coil Wire. Am i going to have to re jet the card when i choose to install these parts too? As i have read, do 1 upgrade at a time so you can evaluate it's performance. Currently with........downhill, win at my back, no breakfast or lunch, optimum riding conditions, i GPS 55.6 MPH. I say this because i don't think i get the good performance from the 14 oz sliders, through the range of acceleration, but by the sound of the revs, i think there's a small drop off in Rev's as i accelerate, not a continuous straight line acceleration which i think would be what you want. I think the 12'a will be better choice with this new exhaust. But when i change the air in device, then install the new CDI and Coil, am i gonna want 14oz sliders, now that there's a potential power increase from the new mods? Is that going to necessitate a new jet change? And what about new valve adjustments?

From my, i call, i can fill a walnut shell full with my knowledge of engines, when people want to first enhance their performance of an engine with bolt on products, they install headers and then something like cherry bomb mufflers, add an air intake or bigger carb, air filter and install a performance coil. I want to bolt on equipment that enhances the running of the engine, without adding any undue negative longevity situations. I'm assuming by enhancing the running of the engine, it will, at the same time, improve it's lifespan. I'm changing fluids and filters Often and checking valves, and very aware of the running of this machine. It holds my life in its hands and putting that life in the hands of what people call "cheap Chinese garbage."

Personally i feel that the quality is certainly increases with a higher priced Chinese scooter. Even in China you get what you pay for. There are reasons why you can buy a 150cc scooter for $695, but you can also buy one for over $2000. Like the china man in restaurant say "you orda , you eat ". I can say that because i can read that the quality of the parts on my bike, and they are not all the bottom of the barrel. Again even in China you get what you pay for. Just look in any American store and the majority of the products are made in China.
Cheap $400 and $500 dollar scooters give Chinese bikes a bad name. I'm not saying they are equal to American and other countries bike, but the more expensive ones are definitely worth the money. If America or other countries could manufacture bikes for $400 and $500 bikes, they would be too. They just won't/can't do it. China can and people have bought millions of them in a drop ship situation. No wonder there is a lot of horror stories. But by volume, i bet you would see the percentage of poor reviews are minuscule in proportion to the numbers sold.

I'm really enjoying my ride and i want it to perform optimally, and not leave me stranded some where, and allow me some safe fun. I really need your expertise because no one likes half a walnut shell of knowledge.