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Warrior overheating

This is a discussion on Warrior overheating within the Yamaha YFM350 Raptor/Warrior ('87-Present) forums, part of the Performance /Technical category; I went riding finally the other day where my dad grew up at in farm country. Despite the mild temperatures he noticed his warrior was ...


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Old 12-31-2002, 06:40 PM   #1
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Default Warrior overheating

I went riding finally the other day where my dad grew up at in farm country. Despite the mild temperatures he noticed his warrior was running and smelled like it was running hot. We continued to ride but I read on an earlier post about this problem and some ways to help cure it. I couldn't find it using search so could you all give me some suggestions.
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Old 12-31-2002, 06:43 PM   #2
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did he change the jetting with that pipe?...if not start there
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Old 12-31-2002, 06:44 PM   #3
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Yeah when he got it the guy jetted it and everything.
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Old 12-31-2002, 08:01 PM   #4
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Check the plug color. A temperature change could have effected the jetting. If it has a white tip then go up in jet sizes until it becomes a light to chocolate brown. If the plug is all ready that color then you should get an oil cooler.
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Old 12-31-2002, 08:21 PM   #5
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If its not the jetting talk to mascman.
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Old 12-31-2002, 10:04 PM   #6
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I have ridden in some hot weather in trails....lots of up and down shifting.....even for quite a while. I never noticed any heat issues. Are you sure it was overheating? Were you loosing any performance or throttle response? How do you know it overheating? An air cooled engine is meant to radiate heat...I'm sure those fins remove alot of heat from the engine and that probably makes it feel like the engine is running hot.

Also...did you just get that pipe....anything you smell could be machine oil burning off a new pipe.

I guess all I'm saying is.....I would make sure it is really overheating before I jump to conclusions. It seems like your dad isn't affraid to spend money on it with the list of mods he has on it already. An oil cooler is never a bad mod anyway, but if it is truly overheating....it's not supposed to, and an oilcooler may be trying to fix the symptom but not the cause. I'd try to figure out why it is overheating.
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Old 01-01-2003, 01:01 AM   #7
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All that stuff except the tires came on the machine when we bought it off ebay for like 3100 bucks. We said it was overheating because we felt that there was a large amount of heat then usual coming off the engine. We were drag racing each other a lot o there was a lot of up and down shifting. I'll try to check the plugs tommorrow after we work on the lawnmower, but I doubt that is the problem related to jetting. What is the deal on an oil cooler where can I find one how does it work could you give me the info.
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Old 01-01-2003, 09:06 AM   #8
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You can get on at Four Stroke Tech. for 95 or 100 bucks. I have one but haven't put it on yet.
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Old 01-01-2003, 09:22 AM   #9
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My brother has a DG on his 400ex. We repacked the silencer and it still smells after a couple rides.

For an oil cooler, check this out.

Remember though that an oil cooler is not a cure for an overheating engine. If it really is overheating I would check out the jetting like stated before. Do the plug check.
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Old 03-10-2003, 09:03 PM   #10
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you can get an after market radiator for 50-60 bucks on ebay, great idea
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Old 03-10-2003, 09:20 PM   #11
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Did it feel hot or did it smell hot? If you just added a new pipe, look for a tight fit where the headder pipe and exhaust pipe meet above the clutch housing. Leaking burnt oil/smoke smell like a hot motor. Drag racing adds a lot of heat from the clutch packs too and they tend to smell like a hot motor.
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Old 03-11-2003, 08:25 AM   #12
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Humm...I wonder who ggilkison is talking about?

By the way, BT members only $60.
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Old 03-11-2003, 09:56 PM   #13
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forget the lawn mower. unless your out west who cuts grass in march anyway. lmao
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Old 03-14-2003, 11:25 PM   #14
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I sell a kit for $75 with all mounting hardware, and instructions if your interested. $40 more for steel braided lines(comes with rubber hoses)
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Old 06-09-2009, 10:54 AM   #15
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Quote: Originally Posted by LMTRacerTT View Post
I sell a kit for $75 with all mounting hardware, and instructions if your interested. $40 more for steel braided lines(comes with rubber hoses)
sell a kit for what
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Old 08-13-2009, 06:50 PM   #16
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unhappy overheating warrior

ok im new to this forum but i let my warrior idol for 20 seconds and the eghaust was making a wet paper towel steam the temputure was 75-80 and it was sitting in a garage really need help had same jey kit and pipe.
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Old 08-14-2009, 08:01 AM   #17
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Quote: Originally Posted by beastlywarrior View Post
ok im new to this forum but i let my warrior idol for 20 seconds and the eghaust was making a wet paper towel steam the temputure was 75-80 and it was sitting in a garage really need help had same jey kit and pipe.

Were do you live? If it sat in a cool moist shed, for instance, it was just the condensation steaming off.
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Old 08-14-2009, 01:44 PM   #18
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Quote: Originally Posted by MasterBlaster03 View Post
What is the deal on an oil cooler where can I find one how does it work could you give me the info.
an oil cooler is just a radiator for your oil
and check your oil...is it as full as it should be? does it need changed?
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Old 08-15-2009, 09:24 AM   #19
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Were do you live? If it sat in a cool moist shed, for instance, it was just the condensation steaming off.[/quote]


well i live in indiana up north but it only sat for a couple of days when i had to weld the frame but... i got so hot and i didnt want to mess it up
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Old 08-15-2009, 04:30 PM   #20
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well im going to give it a try today and see what happends is there any thing to watch out for like melting or fire wise the tank was geting warm...
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