can someone help me figure out this quad? - Page 7

Weldangrind · 03-11-2013, 10:07 AM

It sounds like it's not getting enough fuel, for two reasons:

1. It won't idle without the choke.
2. It backfires.

Try a larger slow jet. If you can't find one, buy a Mikuni and stick a larger slow jet in it.

migue1760 · 03-11-2013, 04:43 PM

Ohh whats the problem though the quads carb has no damage internally and externally? Can i make the jet bigger?

Weldangrind · 03-12-2013, 12:11 AM

Like I said, try a new slow jet. The one you have is too small, IMO.

Read page four, and it will be clearer: http://www.chinariders.net/modules.p...r=asc&start=45

migue1760 · 03-12-2013, 02:32 AM

Ohh alright do you know why they put small jets? And where can i get them?

Weldangrind · 03-12-2013, 10:28 AM

With your stock carb, I don't know where you can find slow jets or main jets. With a 30mm Mikuni, you can find them at your local Yamaha dealer.

Our Chinese friends do the rough-in with these machines, leaving it up to us to do the details. That's what we get for such a low price.

migue1760 · 03-12-2013, 04:51 PM

Idk its a pz27 carb can i use jets from other carbs? What is the best jet for my carb?

Weldangrind · 03-13-2013, 01:17 AM

Again, I don't know about your carb. Just buy a Mikuni.

migue1760 · 03-13-2013, 01:40 AM

Ok sir i will see, can i use mikuni jets on this carb?

Weldangrind · 03-13-2013, 01:52 AM

On your existing carb? No idea, but probably not.

migue1760 · 03-13-2013, 02:37 AM

:( why do i have to change the carb

midlifekrisiz · 03-13-2013, 07:29 AM

Quote:

Originally Posted by migue1760

:( why do i have to change the carb

when I wanted more out of my 250 I took Weld's advice and bought the carb he is referring to and man did I ever get a bang for my buck....totally worth it if you do.

migue1760 · 03-14-2013, 04:40 PM

So a 30mm mikuni carb, do they sell them at local yamaha/honda dealers?

Weldangrind · 03-15-2013, 12:26 AM

Nope. eBay. http://www.ebay.com/itm/30MM-MIKUNI-...bf060c&vxp=mtr

migue1760 · 08-22-2013, 05:13 AM

Hi guys going to to work on the quad again

73scoutII · 12-11-2013, 08:26 PM

Yea boss the guys are dead on. Ya see the stock carbs they put in arent designed for performance merely jus basic putting around pleasure. Sodrop the mikuni 30 mm on an even with stock sized slow an mains youll notice better performance. Once you get bord with the gain get upsized slow an mains an keep bumpin thefun. Out of trial and error iv found the mikuni is the most reliable easy to tune an upgrade carb possible. Itll take watever you throw at it.

03-11-2013, 10:07 AM	#91
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	It sounds like it's not getting enough fuel, for two reasons: 1. It won't idle without the choke. 2. It backfires. Try a larger slow jet. If you can't find one, buy a Mikuni and stick a larger slow jet in it. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

03-12-2013, 12:11 AM	#93
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Like I said, try a new slow jet. The one you have is too small, IMO. Read page four, and it will be clearer: http://www.chinariders.net/modules.p...r=asc&start=45 __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

03-12-2013, 10:28 AM	#95
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	With your stock carb, I don't know where you can find slow jets or main jets. With a 30mm Mikuni, you can find them at your local Yamaha dealer. Our Chinese friends do the rough-in with these machines, leaving it up to us to do the details. That's what we get for such a low price. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

03-13-2013, 01:17 AM	#97
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Again, I don't know about your carb. Just buy a Mikuni. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

03-13-2013, 01:52 AM	#99
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	On your existing carb? No idea, but probably not. __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

03-11-2013, 04:43 PM	#92
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	Ohh whats the problem though the quads carb has no damage internally and externally? Can i make the jet bigger?
	0

03-12-2013, 02:32 AM	#94
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	Ohh alright do you know why they put small jets? And where can i get them?
	0

03-12-2013, 04:51 PM	#96
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	Idk its a pz27 carb can i use jets from other carbs? What is the best jet for my carb?
	0

03-13-2013, 01:40 AM	#98
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	Ok sir i will see, can i use mikuni jets on this carb?
	0

03-13-2013, 02:37 AM	#100
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	:( why do i have to change the carb
	0

03-14-2013, 04:40 PM	#102
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	So a 30mm mikuni carb, do they sell them at local yamaha/honda dealers?
	0

03-15-2013, 12:26 AM	#103
Weldangrind Join Date: Mar 2009 Location: Sardis, BC, Canada Posts: 25,977	Nope. eBay. http://www.ebay.com/itm/30MM-MIKUNI-...bf060c&vxp=mtr __________________ Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer
	0

08-22-2013, 05:13 AM	#104
migue1760 Join Date: Feb 2013 Location: coachella valley california Posts: 102	Hi guys going to to work on the quad again
	0

12-11-2013, 08:26 PM	#105
73scoutII Join Date: Dec 2013 Location: Reno nevada Posts: 9	Yea boss the guys are dead on. Ya see the stock carbs they put in arent designed for performance merely jus basic putting around pleasure. Sodrop the mikuni 30 mm on an even with stock sized slow an mains youll notice better performance. Once you get bord with the gain get upsized slow an mains an keep bumpin thefun. Out of trial and error iv found the mikuni is the most reliable easy to tune an upgrade carb possible. Itll take watever you throw at it. __________________ Keep it dirty
	0