Haven't posted here in awhile. The Raptor was solid this season, but the last couple races were showing some clutch problems shifting through the gears under power at the dirt races. I really had to granny shift, which is not conducive to winning or good ETs. At least I'm hoping it's the clutch... So I have new clutch guts on the way that should be a mild upgrade to the 20year old stock one in there. And since I like going faster, I ordered a Stage 2 HotCams cam and valve spring kit for it too. I'm hoping this should be good for maybe 4-5HP over stock, which is not insignificant. Hopefully take advantage of the good exhaust I already have.
And if that all goes according to plan, I will be doing something about extending the swingarm. Either making this one longer or buying an aftermarket. I'm shooting for a +4" longer arm, which should really let me launch this thing.
More to come.
-BP
2005 Yamaha Raptor 660
Moderators: MostMint, wxo, Fred32v, Basement Paul, ttamrettus
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Basement Paul
- Posts: 3612
- Joined: Sun Jul 17, 2005 9:27 pm
- Location: In the dirt.
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Basement Paul
- Posts: 3612
- Joined: Sun Jul 17, 2005 9:27 pm
- Location: In the dirt.
Re: 2005 Yamaha Raptor 660
About a week ago I got the Raptor back from Camaro Bob who did the cam swap and clutch install. I have not ridden it as the roads are covered in salt and the yard is covered in snow. The carb will need to be retuned, which I will do when it warms up some. As of right now it's sitting on the trailer in my heated storage unit. I may order a swing arm in the next few weeks and bring it back home to do that install in a couple months. I heard it run, and it doesn't sound much different than it did when it was stock, but I expect once the RPMs come up, it will be noticeable.
-BP
-BP