Air Fuel Mixture Screw For TT250 Carb

wirelessg · 12-17-2020, 12:43 PM

Hello Everyone,

I just completed installing the CSC jet kit for my TT250 and am happy with the increased performance. What I am unhappy about is how difficult it is to adjust the air fuel mixture screw when the carb is on the bike. I was looking at some of the ones they sell on eBay and wanted to check and see if anyone could post a link of an air fuel mixture screw that fit the stock carb with no issues. Here is a link of one I was looking at but not sure if it will fit.

https://www.ebay.com/i/323258366002?...RoCBqMQAvD_BwE

Thanks!

NinjaSICKthirtysix · 12-21-2020, 06:35 PM

I would be interested to know as well.

China Rider 27 · 12-21-2020, 07:31 PM

I think I tried one like that on a PZ30 would not work. I could never find one that would fit. Eventually I got this 90 degree adjustment tool.

https://www.amazon.com/Motion-Pro-08...s%2C264&sr=8-4

TheChairman · 12-28-2020, 08:32 AM

I found that I can get in there and turn it by hand using a bit out of a 6-in-1 screw driver. The spring doesn't have a whole lot of tension.

BuffaloChinaRider · 12-28-2020, 09:20 AM

If you buy a mikuni clone carb, most of those hand turn adjusters will work. I didnt need a new carb but I wanted a hand adjustable screw so I bought a clone and it worked perfectly.

China Rider 27 · 12-28-2020, 10:03 AM

All of those long adjusting mixture screws I have seen are cut flat on the end, whereas, the a PZ30 has a needle point. Seems to me if you turn them all the way in, they will reform your fuel mixture passage. Does the Mikuni have a flush cut mixture screw? Or maybe it does not matter to reform the passage? Here is something that could do double duty? I bought one of these for my tool box but it also has a 6 point driver.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

12-17-2020, 12:43 PM	#1
wirelessg Join Date: Dec 2020 Posts: 1	Air Fuel Mixture Screw For TT250 Carb Hello Everyone, I just completed installing the CSC jet kit for my TT250 and am happy with the increased performance. What I am unhappy about is how difficult it is to adjust the air fuel mixture screw when the carb is on the bike. I was looking at some of the ones they sell on eBay and wanted to check and see if anyone could post a link of an air fuel mixture screw that fit the stock carb with no issues. Here is a link of one I was looking at but not sure if it will fit. https://www.ebay.com/i/323258366002?...RoCBqMQAvD_BwE Thanks!
	0

12-28-2020, 09:20 AM	#5
BuffaloChinaRider Join Date: Feb 2020 Location: Buffalo NY Posts: 224	If you buy a mikuni clone carb, most of those hand turn adjusters will work. I didnt need a new carb but I wanted a hand adjustable screw so I bought a clone and it worked perfectly. __________________ BuffaloChinaRider on Youtube Bashan Storm 250 (2018) Apollo Db-36 Deluxe (2019)
	1

12-21-2020, 06:35 PM	#2
NinjaSICKthirtysix Join Date: Oct 2020 Posts: 56	I would be interested to know as well.
	0

12-21-2020, 07:31 PM	#3
China Rider 27 Join Date: Dec 2018 Location: PNW Posts: 982	I think I tried one like that on a PZ30 would not work. I could never find one that would fit. Eventually I got this 90 degree adjustment tool. https://www.amazon.com/Motion-Pro-08...s%2C264&sr=8-4
	1

12-28-2020, 08:32 AM	#4
TheChairman Join Date: May 2020 Location: Philadelphia Posts: 115	I found that I can get in there and turn it by hand using a bit out of a 6-in-1 screw driver. The spring doesn't have a whole lot of tension.
	1

12-28-2020, 10:03 AM	#6
China Rider 27 Join Date: Dec 2018 Location: PNW Posts: 982	All of those long adjusting mixture screws I have seen are cut flat on the end, whereas, the a PZ30 has a needle point. Seems to me if you turn them all the way in, they will reform your fuel mixture passage. Does the Mikuni have a flush cut mixture screw? Or maybe it does not matter to reform the passage? Here is something that could do double duty? I bought one of these for my tool box but it also has a 6 point driver. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
	0