|
Post by WrenchWhore on Feb 13, 2013 2:13:01 GMT -5
Even bored out to the max you do not need 93 octane. Lefty NOT TRUEBore a cylinder and the compression will increase. Increased compression requires additional octane. CW
|
|
|
Post by edfr on Feb 13, 2013 2:53:14 GMT -5
Even bored out to the max you do not need 93 octane. Lefty NOT TRUEBore a cylinder and the compression will increase. Increased compression requires additional octane. CW Doesn't even warrant a response really, anyone that knows motors will tell you bore a cylinder to slap in a bigger piston your displacement will increase BUT not neccessarly your compression. As a matter of fact it could go down from the stock setup. Even if it does raise your compression that does not mean it needs higher octane, it all depends if the compression ratio was raised 12+. But I am done with this silly thread, I was just trying to inform you people you are wasting your money on premiumn fuel when you really don't need it. So put in what you want. Ride Safe and be carefull out there. Lefty
|
|
|
Post by mojo89 on Feb 13, 2013 21:36:08 GMT -5
Update...
Found the carb overflow screw, it was at the end of a tube that was attached to the bottom of the carb and ran to a little bracket that held it to the bottom of my transmission case for easy draining access. Plenty of fuel came out when unscrewed slightly.
I also got my hands on a voltmeter, so far I tested the ignition coil contacts (after disconnecting them of course), there's 6 ohms there, so that seems right but I don't know. Verification?
|
|
|
Post by mojo89 on Feb 17, 2013 0:00:49 GMT -5
Alright, my bike works. Somebody flag this thread as solved, I had my ignition coil replaced and it starts up and runs just like new. Have to say I was frustrated. Made some good networking contacts at my local taotao distribution center though, turns out its down the road from where I work and one of the customer reps works on these bikes in his free time.
I will be speaking with him about the bikes more in depth, I'll start a thread about his suggestions as to things to watch out for.
I wish I had just bought the ignition coil myself and trial and error I would have spent a week and 40 dollars less not riding my bike.
|
|
|
Post by mojo89 on Feb 17, 2013 0:04:07 GMT -5
There was another customer with the same model there today, his problem was simply not running his engine for 3 weeks and it got gunked up, so he paid 50 bucks for them to clean it because he didn't know better
|
|
bikernuc
Big Dawg
DONOR
If I can't Break it ...It ain't fixed!
Posts: 22
|
Post by bikernuc on Feb 17, 2013 12:30:23 GMT -5
Octane can be confusing especially when dealing with the recommended rating for low end vehicles from some countries. Things to remember: 1) Most of the time with a China scooter the recommended octane rating will be the Research Octane Number or “RON” There is a another Octane rating : Motor Octane Number or “MON” 2) US pump gas octane rating is usually (R+M)/2, or pump octane number (PON) or road Octane Number DON: that is RON added to MON and the sum divided by two. 3) From what I have found online the (R+M)/2 rating for a given gasoline will typically be 4 to five point lower than the RON. Meaning in practical terms, US pump gas at 87 (R+M)/2 would be the same (octane rating wise) as 91-92 RON rated gasoline. I have own a number of “odd ball” bikes and have had to deal with this for a number of years. I have found that most of them “requiring”; 91 RON have worked fine on 87 (R+M)/2 most of the time and 89 if it pinged (usually in hotter weather) I hope this helps en.wikipedia.org/wiki/Octane_rating
|
|
|
Post by prodigit on Feb 17, 2013 14:07:20 GMT -5
You can directly talk to me. Experience has shown that the Tao's perform more than 10% better on premium fuel compared to other fuels, and actually perform almost 20% better with BP Premium fuel over here (meaning top end goes from 42MPH stock, to ~50MPH). Not a problem PRODIGIT, Give me the TAOTAO.US Technican in the U.S that said this. I try to stay out of threads and post because just like this one after I explained what does what and why I am asked to talk directly to the person that said something that is now biting him in the butt. I am not your young person that doesn't know this stuff, these are simple 1 cylinder small motors with very simple carbs and cvts and trannies. The mess on the scoots is the electrical system on them. And the only thing that is really bad are the cheap connectors and sockets and wireing they use. If they would upgrade that part they would eliminate 3/4 of the problems. To many make up so many unbelieveable stories it is laughable. I know why they do it and the experienced and knowledgeable people do as well. Some of the knowledge and experienced people will ask the person to explain or prove it and I can tell you NONE to this point have, WONDER WHY. Just remember everybody there is no shame in not knowing something or anything about a scoot. How do you think other people learned by asking questions and working on it guided by someone that has gone through it for himself or herself. Lefty I've noted, especially in S-Florida hot weather, that some scooter engines suffer from pre-ignition, meaning fuel ignites before the cylinder is at the top (or ignites exactly at the top, rather than a few degrees after the top. This has nothing to do with high compression, but regular compression and high temperatures. Like Millsc, I will continue to use 93 oct fuel, because practice has shown a notable (10%) improvement from regular fuels. Perhaps in the winter and on colder climates, this is not necessary; however I bet here in S-FL, just like in some places in Texas, with 90+ degrees (sometimes 100+ degrees) days, and even on 80+ days premium just delivers better. I don't know how you can defy what works in practice... Unless you can tell me exactly why it works better. Skuttadawg used regular and had his pistons crack. I used regular in the beginning, and I heard the oil boil inside the engine compartment! Ever since I switched to 93oct fuel, no more problems, and faster acceleration / top speed. All of this is on a 50cc though. Perhaps for >50cc's it's different.
|
|