ChinaV's new Yingang YG250NF (YG250-6)

[ChinaV]

Honda NX250 = Honda AX1 just different markets as I understood...

From Wikipedia

Another version of Honda NX-250 was the Honda AX-1 intended only for the Japanese market. Using the same chassis as the NX-250, the AX-1 came standard with alloy rims, aluminum Pro-Link rear suspension this time with a rear disc brake, dual round headlights, taller cams, stainless steel exhaust and different carburetor settings. AX-1 outputs 29 horsepower at 8500 RPM at 11 to 1 compression ratio and 2.6 kgm torque at 7500 rpm.


I rode around Koh Samui Thailand for a week on one of those back in 2003, though it was a great little bike.





Cheers!
ChinaV

[andre555]

I see, same same, but different...

In Germany it was sold as NX250 - People called it "the little Dominator" I read somewhere.

Hey V, want to upgrade to an AX1 Crank http://item.taobao.com/item.htm?id=6809989691 ?

I'm looking forward learning from your mods.

[andre555]

I have a parts list for the X2 including the 170MM engine details - 1.5MB, cant upload it. If anyone needs, send PM.

[soberpete]

Thanks for the warm welcome, euphonius.
ZMC888 and I met a while ago and he was the one who introduced me to this site.
I might not have even bought my first motorbike if I hadn't seen him ripping up the roads of Zibo with his.
Stay sober indeed, otherwise we'll just end up driving like most of the Chinese do.

[soberpete]

Howdy Pete,

Nice to see you here on the forum. Now that you've gone public with your moto status, we expect lots of details of your China adventures.

So far I've clocked about 1500 kilometers on the Yingang and the bike has performed well. I bought it as a commuter, and she does a great job of making my ride to work an enjoyable experience. The bike is a little on the small side, if you're over 180cm tall, it can be a tad cramped, which makes long distance touring a bit painful. The suspension is fine for twisty pavement, but suffers on the bad roads, she's not an adventure bike, but does well as a canyon carver.

The power issue seems to be a simple matter of carburetion. China doesn't have any companies making large bore carburetors, so everyone slaps the same PZ30 carb on almost all the bikes and sends them on their way. Since the whole industry is heading towards fuel injection, I doubt they're going to invest in producing new models of carburetors. If you want power out of the Yingang, you have to keep the RPM's above 5000, she's got plenty of juice up there. Given some time to tinker, I think there's plenty of gain to be made in the low end with jetting changes or swapping to a larger carb size.

If you have nice twisty roads with good pavement around, I think you will be very happy with the YG250-6. The Yamaha YBR250 is probably a bit nicer, but it's a lot more money.

Cheers!
ChinaV

Hey there! Thanks a lot for the info.
There are many twisty roads in my area. There are even more bad roads but I know how to avoid them by now so I think the YG250-6 would be perfect for me.
I measure 178cm so I must be destined for this bike.
I did have my eyes on the YBR250 a while ago because I heard that it's about the best quality 250 one could legally get in China. The price, however, is a big turn-off and 15,000rmb for a decent, fun 250 sounds much more appealing.
I don't know how many people want to read my reviews but I'll make some for sure.

Cheers,
Pete

[andre555]

...I don't know how many people want to read my reviews but I'll make some for sure.

Cheers,
Pete

We are all bored in our office cubicles, especially Monday morning - So get these reviews/reports coming!

[ZMC888]

Only powerful above 5000 rpm? Sounds like a jetting or needle height issue to me, or find the original carb that came with the Honda and put that on!

Pete, can I do a review of the bike when you get it too?

[andre555]

Hi V,

something about the valve adjustments. I checked with the local Shineray guys earlier in January, they had no Shims by then, but promissed to get them. Called them today seems they didnt bothered with it...WHERE IS THIS TIC ICON

The parts manual uses this description: 调整垫
I assume I will need 4 shims, but what size can only be measured once everything is taken apart. Do you know where in China (taobao?) get a whole set of suitable shims? (I only find YoYo spare parts)

[humanbeing]

Hi V,

something about the valve adjustments. I checked with the local Shineray guys earlier in January, they had no Shims by then, but promissed to get them. Called them today seems they didnt bothered with it...WHERE IS THIS TIC ICON

The parts manual uses this description: 调整垫
I assume I will need 4 shims, but what size can only be measured once everything is taken apart. Do you know where in China (taobao?) get a whole set of suitable shims? (I only find YoYo spare parts)

Don't bother that "Shineray" clown. 4-wheel use similar thing, just go to car parts city find a right one.

[adrenalinesteve]

such a good review and the bike looks amazing, congrats chinaV :)