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Old 12-03-2012, 11:43 AM   #1
More CowBell OP
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Joined: Jul 2009
Location: Sun City Ca.
Oddometer: 208
315R Montesa overheating

My buddy has a 98 Montesa 315R. It boils over after not too long of riding. Has anyone seen this before? Do you think it could just be a radiator cap ? It's not like I can just run down to the corner and get one . Im open to sugestions. Once we fix this issue I think he is going to sell it.
13 KTM 350EXC, uncorked, race bike with a plate
07 YAMAHA FZ6. would trade for the right KLR650
05 Montesa 4RT. SOLD
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Old 12-03-2012, 11:49 AM   #2
Studly Adventurer
Joined: Apr 2008
Location: Idaho
Oddometer: 618
Is the coolant topped up? Does the fan come on? Are the rad fins clear? Good gas? Plug tight? Reasonable jetting? Air leak around carb? Crank seals? Just a few ideas.
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Old 12-05-2012, 11:07 AM   #3
Todd Miller
Joined: Nov 2011
Oddometer: 10
Montesa 315

I had a 02 model and had the same problem. I ordered a new rad. cap and put blue ice antifreeze in it and all was good again. Never an overheating issue again. I can tell you however that you are not going to find t he cap at your local auto parts dealer will have to order it from a local honda dealer or Overland Trails in PA the guy there is Dennis. He is the man when it comes to Montesa's. Hope this helps
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Old 12-05-2012, 02:32 PM   #4
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Joined: Feb 2011
Location: Boise aria
Oddometer: 1,129
Question parts...

As I understand it in CA might be able to get you what you need, they do Montesa parts, not sure about a 315R, but might be worth giving them a call.

Good luck!
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Old 12-06-2012, 10:45 AM   #5
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Joined: Jul 2008
Location: Albuquerque, not New, not Mexico.......
Oddometer: 3,192
Dennis at Overland Cycle is your guy. Trust me.
Work hard. Play hard.
Team Dead End. The drinking team with a Trials problem.
2-Time winner of the coveted "Best Shenanigans" award at Capt. Rick's annual BBQ.
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Old 12-06-2012, 12:02 PM   #6
Team Dead End
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Joined: Mar 2008
Location: Albuquerque, NM
Oddometer: 6,442
Originally Posted by brewtus View Post
Dennis at Overland Cycle is your guy. Trust me.

Dennis be the man on Montesas!
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