The XT350 thread - Page 157

msd-boston · 07-08-2011, 07:16 PM

If we're still looking for photo examples, here's my '87. Only real visible mods are ST exhaust and a tank/rear bags. It also has a drilled airbox and I think it's been jetted. Running well now, starts 2nd or 3rd kick, idles okay but occasionally misses (possibly due to the exh).

Jronwood · 07-09-2011, 05:42 AM

Draechon,

Things I need/want.

Need rubber carb boots to head (you may need to keep them but let me know)

Need front brake master cylinder and handlebar assembly (take as much or little as you please)

Would be interested in all / any lighting and electricals, my ignition switch is shot, and not sure what else works or not.

Need gas cap off tank.

Zecatfish, thanks.........any idea the name of company or town/city it is in??

More later, this is just my memory.

thanks Jronwood

Grreatdog · 07-09-2011, 05:48 AM

Quote:

Originally Posted by msd-boston

If we're still looking for photo examples, here's my '87. Only real visible mods are ST exhaust and a tank/rear bags. It also has a drilled airbox and I think it's been jetted. Running well now, starts 2nd or 3rd kick, idles okay but occasionally misses (possibly due to the exh).

Sweet looking bike. The Supertrapp is the best mod I did to mine. And if it runs OK with that pipe and a drilled airbox it has been rejetted. You are lucky to have found that setup. Add a Clarke tank and that would be my old XT. Well it would also need a lot of scratches and some road rash to look like mine.

About the only pic I have. I miss the truck, the bike, the red hair and the ten fewer pounds.

adamjam2 · 07-09-2011, 06:39 PM

hey everyone. i got my 95 xt 350 about a month ago. i've been watchin the posts and learing tons. so i wanna say thank you for all the great info. my bike runs great except if I'm cruisin along at a steady speed i notice it kinda surges a little bit. i tried a seafoam in my gas, a new spark plug ,and a new fuel filter( not sure if this is a stock setup or not but it had one on it when i bought it). the only other thing i can think of would be the intake boots that everyone says are so problematic.
Any Ideas? and how can u tell if the intake boots are actually bad?
thanks!

Grreatdog · 07-10-2011, 05:15 AM

Spray carb cleaner around the intake boots with it idling and see if the idle changes.

Flirtin w/Disaster · 07-10-2011, 08:11 AM

I recently purchased a 93 XT350 that to my knowledge is all stock. I took apart the carb and cleaned and adjusted as recommended in this thread. The bike runs great and starts fine when cold but can be a bitch too crank after riding a while. I've been told it could be the valves sticking. Sound correct? Is it difficult to adjust them? Any help greatly appreciated>

adamjam2 · 07-10-2011, 02:06 PM

do these bikes come stock with fuel filters after the petcock? I'm wondering if it's restricting fuel flow

Grreatdog · 07-10-2011, 03:15 PM

Hot start drill: hold the throttle WFO and kick it several times until it clears out and tries to fire. Then closed throttle and the normal thumper kick start drill of pushing it through until you feel TDC, then back to the top and kick. Repeat the normal kick until it starts. If it doesn't start after a few then try the WFO again. Hot starts and especially hot starts after sitting where they are between hot and cold are just not a happy place for any kickstart thumper.

And, yes, it is pretty difficult to adjust the valves. It is easy enough to check the clearances. Do that just like any other bike. But XT350's are shim and bucket which means you need a shim chart and the correct shims plus a tool to compress the valve spring or you can remove the cams. But it is a good idea to check the valve clearances. If you aren't sure how to do it then it is worth paying for. It has to be done cold though so it is usually an overnight service.

And, no, there aren't any fuel filters other than the screens inside the tank on the petcock. Not a bad idea to add one since the tanks can rust on side and cause all kinds of carb misery. DAMHIK.

IMO, if hot starts are the only issue and that bastard of a carb is running OK and idling OK then leave it the hell alone.

Calkins · 07-10-2011, 04:02 PM

I have some crap going on with mine today. Went for a ride and 5k stumble came back, and won't let the bike rev past. I was at WOT on the highway for a bit, and it was slowly losing power, and about 4k was the max I could get, in 4th on up. Came home and found that it's rich as heck, black plug, and inside muffler. Tore out the end of the pipe/spark arrestor. No change. My buddy got on and slowly turned the petcock closed at WOT and got it to run much better, when it's lean. It was turned to about 8:00. At that point I had tons of power and it would freely rev to 8-9k under load.

SO? What's up?

As we rode, I was thinking about what I have done. Then it hit me! When I douched out my carb, I had a jet that was oacked full of crap, and I had to use a finger drill on it. That was the Pilot Jet. What RPM range does that cover?

SkidMarx · 07-11-2011, 08:05 AM

Quote:

Originally Posted by adamjam2

do these bikes come stock with fuel filters after the petcock? I'm wondering if it's restricting fuel flow

No, there are screens on the petcock. Remove the petcock, make sure they are still there, and in good shape and get rid of the filter. It very well could be causing flow problems. They have for others.

Brypoint · 07-12-2011, 03:27 PM

I know this has been gone over before. What is the widest rear tire I can fit on my XT350. I need to order some new tires and I really hate the way my tire looks so small on the bike. I know their is a bit of a performance hit but I don't care. I will also do the 520 conversion so I'm not worried about the chain. Think a 130 will fit or higher? It has a stock 110 so 130 doesn't seem too much bigger. (is the 110 in millimeters, if so a 130 is only 20mm bigger?)

Calkins · 07-12-2011, 03:39 PM

Quote:

Originally Posted by Brypoint

I know this has been gone over before. What is the widest rear tire I can fit on my XT350. I need to order some new tires and I really hate the way my tire looks so small on the bike. I know their is a bit of a performance hit but I don't care. I will also do the 520 conversion so I'm not worried about the chain. Think a 130 will fit or higher? It has a stock 110 so 130 doesn't seem too much bigger. (is the 110 in millimeters, if so a 130 is only 20mm bigger?)

I have Dunlop D606 front and rear on my '90. 90/90-21 front and 130/90-18 rear. The rear rubbed the bottom of the shock with 10PSI in the tire. I could have added a half link in the chain and moved the tire back some to fix it, but I just let it self clearance itself. A couple hundred miles later and I don't hear it rub much at all.

Calkins · 07-12-2011, 03:40 PM

Quote:

Originally Posted by Calkins

I have some crap going on with mine today. Went for a ride and 5k stumble came back, and won't let the bike rev past. I was at WOT on the highway for a bit, and it was slowly losing power, and about 4k was the max I could get, in 4th on up. Came home and found that it's rich as heck, black plug, and inside muffler. Tore out the end of the pipe/spark arrestor. No change. My buddy got on and slowly turned the petcock closed at WOT and got it to run much better, when it's lean. It was turned to about 8:00. At that point I had tons of power and it would freely rev to 8-9k under load.

SO? What's up?

As we rode, I was thinking about what I have done. Then it hit me! When I douched out my carb, I had a jet that was oacked full of crap, and I had to use a finger drill on it. That was the Pilot Jet. What RPM range does that cover?

Bueller?

Brypoint · 07-12-2011, 05:34 PM

Quote:

Originally Posted by Calkins

Bueller?

These problems showed up after you cleaned the carbs? Could you have possibly bent the float at all? Seems like it may be allowing too much fuel in at the higher rpms (hence the fouled plug) and when your buddy starved it, it began to run better. How's the plug? maybe its not firing properly at high r's and that would cause a rich enviorment too due to not burning all the fuel.

Brypoint · 07-12-2011, 05:37 PM

Quote:

Originally Posted by Calkins

I have Dunlop D606 front and rear on my '90. 90/90-21 front and 130/90-18 rear. The rear rubbed the bottom of the shock with 10PSI in the tire. I could have added a half link in the chain and moved the tire back some to fix it, but I just let it self clearance itself. A couple hundred miles later and I don't hear it rub much at all.

Ok thx for this, I'm ok with a little rub. Does that tire look bigger/better then stock? If you can remember lol.

07-08-2011, 07:16 PM	#2341
msd-boston Adventurer Joined: Feb 2010 Oddometer: 48	1987 xt350 If we're still looking for photo examples, here's my '87. Only real visible mods are ST exhaust and a tank/rear bags. It also has a drilled airbox and I think it's been jetted. Running well now, starts 2nd or 3rd kick, idles okay but occasionally misses (possibly due to the exh).

07-10-2011, 05:15 AM	#2345
Grreatdog Beastly Adventurer Joined: Apr 2007 Location: Annapolis, MD Oddometer: 5,616	Spray carb cleaner around the intake boots with it idling and see if the idle changes. __________________ KTM 640 LC4E KTM 200 MXC XT200

07-10-2011, 08:11 AM	#2346
Flirtin w/Disaster Adventurer Joined: Jun 2011 Location: Florida Panhandle Oddometer: 33	XT 350 hard to crank when warm/hot I recently purchased a 93 XT350 that to my knowledge is all stock. I took apart the carb and cleaned and adjusted as recommended in this thread. The bike runs great and starts fine when cold but can be a bitch too crank after riding a while. I've been told it could be the valves sticking. Sound correct? Is it difficult to adjust them? Any help greatly appreciated>

07-10-2011, 03:15 PM	#2348
Grreatdog Beastly Adventurer Joined: Apr 2007 Location: Annapolis, MD Oddometer: 5,616	Hot start drill: hold the throttle WFO and kick it several times until it clears out and tries to fire. Then closed throttle and the normal thumper kick start drill of pushing it through until you feel TDC, then back to the top and kick. Repeat the normal kick until it starts. If it doesn't start after a few then try the WFO again. Hot starts and especially hot starts after sitting where they are between hot and cold are just not a happy place for any kickstart thumper. And, yes, it is pretty difficult to adjust the valves. It is easy enough to check the clearances. Do that just like any other bike. But XT350's are shim and bucket which means you need a shim chart and the correct shims plus a tool to compress the valve spring or you can remove the cams. But it is a good idea to check the valve clearances. If you aren't sure how to do it then it is worth paying for. It has to be done cold though so it is usually an overnight service. And, no, there aren't any fuel filters other than the screens inside the tank on the petcock. Not a bad idea to add one since the tanks can rust on side and cause all kinds of carb misery. DAMHIK. IMO, if hot starts are the only issue and that bastard of a carb is running OK and idling OK then leave it the hell alone. __________________ KTM 640 LC4E KTM 200 MXC XT200 Grreatdog screwed with this post 07-10-2011 at 03:29 PM

07-10-2011, 04:02 PM	#2349
Calkins On Any Sunday... Joined: Mar 2009 Location: Iowa Falls, Iowa Oddometer: 339	I have some crap going on with mine today. Went for a ride and 5k stumble came back, and won't let the bike rev past. I was at WOT on the highway for a bit, and it was slowly losing power, and about 4k was the max I could get, in 4th on up. Came home and found that it's rich as heck, black plug, and inside muffler. Tore out the end of the pipe/spark arrestor. No change. My buddy got on and slowly turned the petcock closed at WOT and got it to run much better, when it's lean. It was turned to about 8:00. At that point I had tons of power and it would freely rev to 8-9k under load. SO? What's up? As we rode, I was thinking about what I have done. Then it hit me! When I douched out my carb, I had a jet that was oacked full of crap, and I had to use a finger drill on it. That was the Pilot Jet. What RPM range does that cover? __________________ Justin Calkins - Iowa Falls, Iowa 1981 Yamaha TT500H - Flattracker FOR SALE 2007 Triumph America

07-09-2011, 05:42 AM	#2342
Jronwood 87 XT600 Joined: Jul 2011 Oddometer: 22	Draechon, Things I need/want. Need rubber carb boots to head (you may need to keep them but let me know) Need front brake master cylinder and handlebar assembly (take as much or little as you please) Would be interested in all / any lighting and electricals, my ignition switch is shot, and not sure what else works or not. Need gas cap off tank. Zecatfish, thanks.........any idea the name of company or town/city it is in?? More later, this is just my memory. thanks Jronwood

07-09-2011, 06:39 PM	#2344
adamjam2 Adventurer Joined: Jun 2011 Oddometer: 10	hey everyone. i got my 95 xt 350 about a month ago. i've been watchin the posts and learing tons. so i wanna say thank you for all the great info. my bike runs great except if I'm cruisin along at a steady speed i notice it kinda surges a little bit. i tried a seafoam in my gas, a new spark plug ,and a new fuel filter( not sure if this is a stock setup or not but it had one on it when i bought it). the only other thing i can think of would be the intake boots that everyone says are so problematic. Any Ideas? and how can u tell if the intake boots are actually bad? thanks!

07-10-2011, 02:06 PM	#2347
adamjam2 Adventurer Joined: Jun 2011 Oddometer: 10	do these bikes come stock with fuel filters after the petcock? I'm wondering if it's restricting fuel flow

07-12-2011, 03:27 PM	#2351
Brypoint Adventurer Joined: Jul 2011 Location: Las Vegas Oddometer: 75	I know this has been gone over before. What is the widest rear tire I can fit on my XT350. I need to order some new tires and I really hate the way my tire looks so small on the bike. I know their is a bit of a performance hit but I don't care. I will also do the 520 conversion so I'm not worried about the chain. Think a 130 will fit or higher? It has a stock 110 so 130 doesn't seem too much bigger. (is the 110 in millimeters, if so a 130 is only 20mm bigger?)

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