660 transmission trouble. - Page 2 - Yamaha Raptor Forum
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post #11 of 26 (permalink) Old 10-09-2019, 11:09 PM
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Regular threads. Lefty loosie, righty tightie. You can use a nickel to wedge the gears. Impact makes it easy if you have one

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post #12 of 26 (permalink) Old 10-09-2019, 11:45 PM
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Yep, righty tighty,,,,,, Oh, never mind. Depending on the picture it will show holding the gears to loosen one direction, and/or holding to tighten the opposite direction. Always use something softer then the gears, such as aluminum, or I like to use a penny. Be careful of using nickels as they aren't as soft and cost more then a penny....

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post #13 of 26 (permalink) Old 10-10-2019, 01:53 AM
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Yep, righty tighty,,,,,, Oh, never mind. Depending on the picture it will show holding the gears to loosen one direction, and/or holding to tighten the opposite direction. Always use something softer then the gears, such as aluminum, or I like to use a penny. Be careful of using nickels as they aren't as soft and cost more then a penny....
Lmao! 4 cent savings! I swear, we must be related somehow...

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07' Raptor 700- 11:1, hotcam 3, Pro design intake with K&N, +3 throttle body, Monster big bore duals, MSD with cuervo timing, JOGACA shocks, trail tech VAPOR, GYTR heel guards & bumper & nerfs, .250 aluminum skids, TM case saver, folding anodized levers and shifter, powermadd hand guards

04' raptor 660-Hot rods crank, .5mm overbore, 11:1 wiseco piston, Stage 1 hotcam, Yoshimura slip-on exhaust, K&N filter with outerwears, open lid airbox, Dynojet stage 2 jet kit
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post #14 of 26 (permalink) Old 10-10-2019, 10:15 AM Thread Starter
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Yep, righty tighty,,,,,, Oh, never mind. Depending on the picture it will show holding the gears to loosen one direction, and/or holding to tighten the opposite direction. Always use something softer then the gears, such as aluminum, or I like to use a penny. Be careful of using nickels as they aren't as soft and cost more then a penny....
Ya, LOL you are correct! I thought about that at about 3 am this morning. Depends on which nut I'm looking at in the diagram. Doh! I also thought about getting a 1/2" impact gun. Might have to do that today.
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post #15 of 26 (permalink) Old 10-10-2019, 11:02 AM Thread Starter
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I shined a light inside and I can see one of the gears all chewed up.660 transmission trouble.-20191009_164913_1570719733810.jpg
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post #16 of 26 (permalink) Old 10-10-2019, 12:55 PM
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That doesn't look good. You'll have to check ALL the bearings as they may be trashed. Be careful with a impact, sometimes it can do more damage then good.
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post #17 of 26 (permalink) Old 10-10-2019, 05:15 PM
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Lmao! 4 cent savings! I swear, we must be related somehow...

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Hell, I save even more by using a shop rag!
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post #18 of 26 (permalink) Old 10-10-2019, 05:28 PM Thread Starter
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Thanks guys. So I got it apart. 2nd gear is trashed. Looking at a parts fiche these 2 gears have 18 and 30 teeth. The ones that I took out have 19 and 29. I'm confused.660 transmission trouble.-20191010_140511_1570742906361.jpg
And one of the bearings in the crankcase is bad. The rest including the piston and rings, cylinder and valves look excellent. My buddy has the cylinder to measure and see if it's good enough for a hone job and some newrings. Crossing fingers.

So, it seems that I have the dreaded 2001 transmission. I figured that I better verify that engine itself isn't also an 01 before I order anything. Dealer said that an 01 engine # will be 0000002 and on 05 will be 0068737. Well guess what? My engine # is 029808. Anyone know an easy look up for the engine year?

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post #19 of 26 (permalink) Old 10-18-2019, 11:58 AM Thread Starter
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Hell, I save even more by using a shop rag!
I'm supposed to get my trans parts today. So, my question is do the gears have to be pressed off/on? I kinda looked them over and I don't see how they come apart. Thanks
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post #20 of 26 (permalink) Old 10-18-2019, 11:49 PM
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I'm supposed to get my trans parts today. So, my question is do the gears have to be pressed off/on? I kinda looked them over and I don't see how they come apart. Thanks
No press. They use circlips and snap rings...

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04' raptor 660-Hot rods crank, .5mm overbore, 11:1 wiseco piston, Stage 1 hotcam, Yoshimura slip-on exhaust, K&N filter with outerwears, open lid airbox, Dynojet stage 2 jet kit
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