
YZ blue
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10 GoodAbout YZ blue
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Rank
TT Newbie
Profile Information
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Location
Arizona
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Interests
boating,wake boarding,riding motorcycles
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I went to 116 when I tried a taller rear sprocket,stock 114 was too short the rear wheel wouldn't move up far enough so I went back to stock size sprocket better performance. 114 O ring is stock
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I have the 08 450 and use the FMF power bomb header with the power core 4 silencer. The PC 4 silencer has a removable spark arrestor for when I do trail riding but most of my riding is at the track. I don't know about you but I like the steel rear sprockets with the O ring chains I get more life out them. Rocky Mountain ATV usually has pretty good deals on the combos every once in a while.
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I don't think it's an injector it would show up right away not after 5 hrs of riding.
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I have an 08/09 450 with a FMF complete exhaust, I did put a power commander on it with the remap, I had issues with a mid throttle miss before the PC and remap which sounds similar to your problem, if you just do the FMF slip-on muffler with the stock head pipe does the problem still come up? Mine was ok with the stock head pipe and slip-on you might be too, other wise you may need the remap to cure the problem.
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Suspension definitely first save the bod as much abuse as possible you'll have more energy at the end for any last lap charges. On the exhaust, I feel much happier with the aftermarket pipe than I did with the stock pipe, a lot of times the quicker throttle response and power to get over a jump or get around another rider has been the key.
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Up date ; After the valves were checked ( no adjustment needed) fresh gas, and clean plug, bike runs great no starting problems, one kick and we're on the track.
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Dealer wants $71.00 for the DIMR8A10, according to this thread I can use the DIMR8B10 which is half the cost or the CR8EIB10 the plug that Rocky Mountain says will work for the 08 RMZ450. I wonder has anyone had any problems with the B10 or the CRBEIB10?
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The insulator didn't look right, towards the tip like a small piece had broke off or had cracked. I took it in to have the valve clearances checked and they told me I probably need to replace the plug as well. They said I could still run with the old one but needs to be replaced and since its the original ( 2 yrs old with 130 hrs on it) I tend to agree. With the hard start the first thing that comes to mind is valve adjustment and plug then if that doesn't help look a little deeper, hopefully these and a change to a more frequented gas station will cure my ills.
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Thanks, they have one that will work -- says it does anyway I'm going to order one to try.
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I tried cycle gear last weekend ,they didn't have it I even tried a Suzi dealer with no luck so whats the deal with the plugs on these fuel inj. motors?
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I've had a couple times the bike had trouble starting 5 or 6 kicks, not the usual 1 or two kicks. I have about 120 hrs on the motor still plenty of power and holds its own on the track, frequent oil and filter changes, I checked the valves they are in spec. What I would like to know is if anyone has had plug issues? The only place to get them around here is the dealer and they want $70 for one. Any second choices? I guess they are a radium plug which is a high tech plug.
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Love the 08 450, its been a great bike and it was the same way an 08 with the 09 motor. Like OTHG_MIKE posted if you don't like it sell it for and get another KX.
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They all have a little bad luck now and then, Reed tends to whine a lot when things go bad.
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I put a Powercore 4 slip on with a power bomb header(Mega bomb might have been a better choice), on my 08 and have been happy with it. The Powercore has a removable spark arrester so I can keep the forest rangers off my back when we do trails, then remove it when I ride the track which it most of the time.
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Here in Arizona if someone gets hurt on your property you are responsible. That's why the tracks have us sign a release when we ride there.