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-   -   Zongshen RX3 carbureted version mods & repairs (http://www.chinariders.net/showthread.php?t=14455)

Co2 09-12-2015 02:01 AM

Another carburated version of ZS177MM my moto Xmotos XZ250RM , fabricated mounted coming with DELLORTO PHBE 34 mm , i buy this moto on 2013 , but moto model is product 2011 , and probably sleep in fabrica , and first day surprised my exhaust color chanced Gold yellow :(

After day i research and found problem is carburator in old benzin carb bowl benzin returned paste ( 2 year stay in old test benzin), blocked carb jets bad surprise.

But Dellorto phbe 34mm carb , non vacum type, spray type i think generally used hot italian 2 stroke bikes , basic constuction, basic maintenance and clean, i like.

I'm try KOSO / OSO 32mm carb , but poor performance (probably need , big jet's, low rpm good but high rpm poor probblem , and manifold gasket harmony problem)

Spark plug trying changing, moto coming DENSO U24 ESR-NB ( good performance) , (big head type"spark plug head attent") ,

Sparkplug crossreference found sad NGK CR8 , i try iridium version CR8EIX ( low rpm very good, but high.. Denso better than NGK)

Owner manual writed sparkplug adviced Champion RG6YC , i try found that sparkplug but cant found , idk how performance or stable..

İgnition coil , i found a old waste Skyteam 200cc cross bike , old ignition coil (same build type) , and i tested Skyteam 200cc ignition coil better than orginal coil , but old and dirty, i try found zero new cant found.

I was wondering , which other carburator types on harmony ZS177mm ?

( forgive me please, grammer and poor english, my age 36 and populer Turk terminology said " age is 35 Half of the way " ,^^ im happy in this forum platform )

Jay In Milpitas 09-12-2015 06:42 PM

Quote:

Originally Posted by Co2 (Post 191998)
But Dellorto phbe 34mm carb , non vacum type, spray type i think generally used hot italian 2 stroke bikes , basic constuction, basic maintenance and clean, i like.

( forgive me please, grammer and poor english, my age 36 and populer Turk terminology said " age is 35 Half of the way " ,^^ im happy in this forum platform )

Co2, Your English is much better than my Turkish (none).

So after you cleaned the old benzin (gasoline) out, the carb is good for performance?

Jay

humanbeing 09-12-2015 07:50 PM

Quote:

Originally Posted by Co2 (Post 191998)
...was wondering , which other carburator types on harmony ZS177mm ?...

ZS fitted this http://item.taobao.com/item.htm?id=22059759145 Mikuni
===
Teikei http://item.taobao.com/item.htm?id=15775593313 | http://detail.tmall.com/item.htm?id=45067073447 is quite popular among chinese 250 (Gn250/Ax-1/Nc250...) rider
===
"Racers" had their own favorites https://item.taobao.com/item.htm?id=40650969335

Co2 09-13-2015 02:25 AM

Quote:

Originally Posted by Jay In Milpitas (Post 192024)
Co2, Your English is much better than my Turkish (none).

So after you cleaned the old benzin (gasoline) out, the carb is good for performance?

Jay

Jay , thanks for increase morale, good mesage :tup:

Yes after clean carb , show must go on ^^ my moto monster power , but terrible situation before clean, clean methode ultrasonic cleaner (little size) , with printer cartrige cleaner solution very good cleaned all parts and shined

A bit problem is air screw setting , i solved it, smell work moto exhaust gasoline, yep my nose same co2 and carbonmonoxide sensor:lmao:

Exhaust sıound ( i cant like high volume sounds, but moto original exhaust uniqe bass, of course mobile phone cam, and volume bad on video.)
https://www.youtube.com/watch?v=YeQHQNTGOYc

First 65 kilometer vide :( , now 16.000 , and replacment parts (my multiple faults)

That account :/ i forget it which pass , video is after clean carb, a bit rölanti fluctuation

My old topic ( some photos deleting automaticly, free picture server...)

http://www.motosiklet.net/forum/moto...m-basligi.html

Co2 09-13-2015 02:37 AM

Quote:

Originally Posted by humanbeing (Post 192030)
ZS fitted this http://item.taobao.com/item.htm?id=22059759145 Mikuni
===
Teikei http://item.taobao.com/item.htm?id=15775593313 | http://detail.tmall.com/item.htm?id=45067073447 is quite popular among chinese 250 (Gn250/Ax-1/Nc250...) rider
===
"Racers" had their own favorites https://item.taobao.com/item.htm?id=40650969335

:thanks: Humanbeing i looking types vacum, i cold looked vacum types, last link is spray type , but same i have my test version thank you very much

Fresh photos

http://i.hizliresim.com/0k5bnY.jpg

http://i.hizliresim.com/zVzQ4R.jpg

peperino 10-06-2015 11:12 AM

Here's a step by step procedure I made to adjust the tank float height, specially useful for us carbureted version users.

It's in spanish but you probably can google translate it

https://coltermoto.wordpress.com/tri...ible-flotante/

SpudRider 10-06-2015 03:44 PM

Thanks for posting the link to your tank float modification. Google Chrome translates the page well into English. :)

peperino 10-06-2015 03:50 PM

I still have to test and fine tune, was raining today so I couldn't test it

SpudRider 10-06-2015 04:11 PM

We eagerly await your updates. :tup:

Would you consider starting a new thread on this topic here? I'm sure the thread would be very popular with all Zongshen RX3 owners, everywhere. :)

peperino 10-06-2015 04:12 PM

Sure thing

SpudRider 10-06-2015 04:16 PM

Thank you, amigo. :)

jezzrite 10-12-2015 10:05 AM

Carburetor problem
 
Hello guys. Long time no see.

This evening I run out of fuel while heading to a petrol station, which is luckily just a hundred metres away from where my bike died (the petcock was already at RESERVE).

After I finished topping up fuel, I was unable to start the bike, and fuel was seen coming out from the area in red circle.

https://farm6.staticflickr.com/5656/...c7ce1d26_b.jpg

I had to switch the petcock to OFF position to prevent the leak from draining my tank. It leaks when I put it at ON or RESERVE.

And the Zong still won't start after a good 15 minutes of cranking up the engine via starter.

What did I do wrong?:cry:

Weldangrind 10-12-2015 02:54 PM

It sounds like the float is stuck. Try tapping the bowl with a screwdriver handle.

SpudRider 10-12-2015 02:55 PM

Quote:

Originally Posted by Weldangrind (Post 194406)
It sounds like the float is stuck. Try tapping the bowl with a screwdriver handle.

:tup:

jezzrite 10-14-2015 01:54 AM

Quote:

Originally Posted by Weldangrind (Post 194406)
It sounds like the float is stuck. Try tapping the bowl with a screwdriver handle.

Too occupied with work, and suffered Post Ride Syndrome after a trip to India. :D

Only able to try it last night.

And it worked! Thanks Weldangrind :thanks:

But before coming to life, the exhaust make a loud explosion-like sound. Not "pop" kind of sound, but more like a "boom".

After that, no more leaks, and the engine starts like normal.

I'm guessing it's a temporary fix, isn't it?

How do I make a permanent fix? Change the float needle? My bike still under warranty, and I called the dealer, and they said I can change the carb if I like to.

Any words of wisdom?


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