Help Me Fix My SSR XF250 - Page 2

TxTaoRider · 01-25-2021, 11:30 AM

That reminds me. A few years ago I had a Polaris atv that started not revving and it had a hole in the diaphragm.

It's bad to have a hole in the carburetor diaphragm but not as bad as having one in your wife's diaphragm. Lol

Nicholas R. · 01-25-2021, 01:09 PM

Yesterday I replaced the spark plug and started the bike up and it seemed much better, quicker startup and seems to have nice throttle response. I didn’t ride it yesterday though, so I’m not sure if it fixed the problem. I have a question, what is a EVAP canister and where is it? The only reason I still didn’t check the valve lash is since I don’t have gap tools to check the tightness. I will ride the bike today and give an update.
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franque · 01-25-2021, 06:48 PM

Check the valves, buy the tool. It's a common maintenance item on these engines, and it'll run much worse if the valves are out of spec. Glad to hear it's running a bit better.

dh · 01-26-2021, 12:09 AM

Youtube has a good maintenance video on valve adjustments for the identical tu250x. The xf250 has room to do valves without removing the tank, but doing so let's you inspect a vacuum line hidden between the tank and frame. That line should be plugged into the bottom of the tank, towards the front.

The Evap canister traps emissions vapors that can later be sucked out and burnt when the bike is running and the vacuum system is pressurized. It's a beer can sized black plastic cylinder with a handful of vacuum lines plugged into it. It's under the seat towards the back of the bike. If any lines come unplugged the bike would run like garbage.

mtiberio · 01-26-2021, 06:07 AM

Quote:

Originally Posted by TxTaoRider

That reminds me. A few years ago I had a Polaris atv that started not revving and it had a hole in the diaphragm.
l

only an issue for CV carbs, not pull slide carbs like ours

TxTaoRider · 01-26-2021, 07:39 AM

Quote:

Originally Posted by mtiberio

only an issue for CV carbs, not pull slide carbs like ours

True, but others in this thread are saying this bike uses a CV type carb and not a slide pull like most of our's use. The CV can develop leaks in the diaphrams.

dh · 01-27-2021, 06:44 PM

Quote:

Originally Posted by TxTaoRider

True, but others in this thread are saying this bike uses a CV type carb and not a slide pull like most of our's use. The CV can develop leaks in the diaphrams.

True. This one uses a CV carb. The carb diaphram can also cause problems if it comes unseated from the channels it rests, easy to do during reassembly.

01-25-2021, 11:30 AM	#16
TxTaoRider Join Date: Oct 2020 Location: Flower Mound Texas Posts: 904	That reminds me. A few years ago I had a Polaris atv that started not revving and it had a hole in the diaphragm. It's bad to have a hole in the carburetor diaphragm but not as bad as having one in your wife's diaphragm. Lol __________________ 2021 Tao Tbr7 - "Lucille" Mods so far- Brozz swingarm, 21" front rim (Bridgestone Tw302 rear/Dunlop D606 front tires), Digital gauge cluster, pz30b pumper carb, after market hand guards, aftermarket brake and clutch levers, round fold away mirrors, Fly handlebars shortened slightly, 13t front sprocket 2009 Q-link Legacy 250 1982 Suzuki GS1100ES - "Jolene"
	1

01-26-2021, 12:09 AM	#19
dh Join Date: Jun 2014 Location: NW Arkansas Posts: 454	Youtube has a good maintenance video on valve adjustments for the identical tu250x. The xf250 has room to do valves without removing the tank, but doing so let's you inspect a vacuum line hidden between the tank and frame. That line should be plugged into the bottom of the tank, towards the front. The Evap canister traps emissions vapors that can later be sucked out and burnt when the bike is running and the vacuum system is pressurized. It's a beer can sized black plastic cylinder with a handful of vacuum lines plugged into it. It's under the seat towards the back of the bike. If any lines come unplugged the bike would run like garbage. __________________ 2013 SSR XF-250
	0

01-25-2021, 01:09 PM	#17
Nicholas R. Join Date: Jan 2021 Posts: 5	Yesterday I replaced the spark plug and started the bike up and it seemed much better, quicker startup and seems to have nice throttle response. I didn’t ride it yesterday though, so I’m not sure if it fixed the problem. I have a question, what is a EVAP canister and where is it? The only reason I still didn’t check the valve lash is since I don’t have gap tools to check the tightness. I will ride the bike today and give an update. .
	1

01-25-2021, 06:48 PM	#18
franque Join Date: Nov 2017 Location: Marseille, France -> Conakry, Guinea Posts: 1,481	Check the valves, buy the tool. It's a common maintenance item on these engines, and it'll run much worse if the valves are out of spec. Glad to hear it's running a bit better.
	1