Welcome NIck, Yea, doin yer own maintenance is the only way to go.
Good goin, keep an eye on that thing & yea, the Versy is the single most valuable mod I can think of to make. It will keep your bike alive. If the chain lets the adjuster guts pop out, it is often an engine killer. Dead. Never to be resurrected. After that, you can pull mods that are fun,,
Right now, if I was gonna chase anyones path down that road, Id hafts look at the fella who is gettin nearly 60MPG,, Dammit,, name escapes me right now,,
Of course, some of the older ( I mean Long Term members) guys have some seriously Hot setups, well,, Hot is relative,, Its a Savage, never to be seen smokin a tire leavin the line,,

Whenever you start making changes, take notes and make only one change at a time. I tried the "white spacer mod" on mine, and the only effect I was able to notice was a decrease of about 10% in gas mileage. The afterfire (backfire) didn't change noticeably, and I believe that is because the "white spacer mod" affects midrange while the afterfire happens when the throttle is closed on overrun. I put the white spacer back in and my gas mileage returned to what it had been. If you feel like it you can dig through the notes on my Fuelly entries and see for yourself.

Thanks for the responses guys. Yes, the one at a time thing is pure gold. I am usually good at that   . Better these days.

I would love for the after fire to disappear but the big reason is power. I have excellent take off from idle, but there is a gap of no power after that so I end up throttling harder to get past that spot. I have been riding it with the choke out due to its cold nature the past couple days on short runs and have noticed no backfire when shifting and decel. So I am hoping the mod will help that problem.

And yea, after that maybe some fun mods. So far i've just reversed the risers and turned the idle mixture screw out to 2 and 1/4. I am looking at shortening the shocks. That one looks cool. My wife and I are light, 230-240 together, so should be ok. Also want to get some bullet style no stem turn signals and new brake light/license plate holder to remove all the bulk under the rear fender.

Anyone put a tall old school chopper sissy bar in place of the stock one on their bike?

I apologize if this should be a RSD question, but I looked in town for some nylon or neoprene #4 washers (before I got my bike disassembled only to have to find out I didn't have the right stuff to fix it) and I can't find them! I tried Home Depot and local Ace Hardware. I looked online and can order a 10 pack from HD for $0.42 ....plus $5 shipping. Does it have to be nylon or a plastic, or can I use metal or zinc washers?

I also just ordered a Raptor for less than 15 shipped(had one for 8.88 but was going to take over 2 weeks to ship...i'm impatient) So I should be able to swap petcock and do spacer mod at same time...if I can find some spacers/washers.

Any help is greatly appreciated.

Thanks,
Nick

Justin, are you meaning the petcock? This is the one I ordered: http://www.ebay.com/itm/2005-2004-2003-2002-2001-Yamaha-Raptor-660-Fuel-Gas-P...
It says its for a Raptor 660. I sure hope its the right one.

Thing is in the pic above...notice how the fuel line is lower than the original petcock. I had to shim my tank with like 3 thick washers to raise it up to and get my fuel out line from the petcock not to hit the choke knob.

old_rider wrote on 06/04/13 at 14:16:36:



Me either........the Yamaha Raptor petcock fist just fine.