Well I finally got a day off work and did a full tune up on the prairie. Then installed the progressive springs, Dyna CDI, and the C/series w/26in Mudlites. It was getting late when I started so I did it all at once Instead of testing after the tune up and CDI. I cant tell that its running any better than when I started today. The ride is without a doubt better (dont know if that was from loosing the dunflops or the springs). Only ran it for about 10 minutes but for one, in 2wd instead of the wheelies it leaves a 20' black mark on the pavement, In 4wd about 2'. The midrange is there but no noticable gain. The weight difference is considerable in tires, would that be whats taking the power? I hope the mudlites do better off road than they do on because the stockers hook up way better on pavement. So it seems like I could have saved $850 and just bought the springs. I guess I will have to switch CDI and tire combo around tommorow and see where the problem lies. Any Ideas?

 

For a faster test just swap the CDI out to stock and let us know.

 

I have 26" Mudlites with steel rims on my 650 and have no problems with pulling the front end up so I doubt that is a problem. Leaving 20' black marks I would have to say that you have the power there. Word of caution, the Mudlites although a good trail tire as far as ride will not hold up to the 650S power at the rear wheels. They will begin to crack transversly behind the lugs. Also the rip very easily at the side walls. I put a set on last november and the rear tires are already shot. But I am not the easiest rider on them. Looking into the progressive springs myself. Is the cost worth it.

 

I would agree with the rock put the stock cdi back in for a bit then the dyna..i bet youll really get an idea of the increased power...

 

Try it in the grass or somewhere your tires will bite. After you get your composure and stop shaking and want a bigger rush switch your primary spring to the Red EPI. Just avoid full throttle takeoffs until you get the hang of when to let off the throttle.Text. I have similar setup and take my word for it, she will flip if you don't back out of the throttle.

 

TuffeNuff is right. I just installed the red spring in my P650. I also have the Dyna CDI. In low range, leaning over the front rack, I almost flipped it the first time I tried a quick run down the driveway. I think it may be "too much" for some of the technical riding I do. I am going on a 40-60 mi trail ride tomorrow and will decide if I am going to leave it in. There is no doubt that the Mudlites will take some power away vs the stockers. However, the first time you run them in the mud, or snow, you will be glad you have them. Also, some of the improvement in handling, you have noticed, is attributable to the six ply tire vs 2 ply stockers. They do not "roll over" in hard cornering.

Good luck with your setup!

 

Ok guys, Im leaving in about an hour for an all day and night ride, I will take the stock CDI with me and do some timed test in the grass to
give these tires a fair chance. I will pick up a primary spring as well, but might try the 700 spring first (looked good on KODs test). Arkyriderone, I would be the first to tell you if the springs are not worth it, but there is no doubt they are worth it. They are the one thing I have no questions about. Probably the best $135 I could spend on the bike. Thanks guys I will let you know results when I return. Kevin

 

Rivermud,
The tires are the biggest robber of power you have gone from a light tire to heavier rims and tires the rotational mass of the new system is higher. Rotational mass especially on a belt clutch is a big factor go back to OEM tire/rims keep the Dyna cdi and the see the difference. IF speed is your game then keep rotational mass to a minimum!!!!!

 

I love my 25" Mudmachine Triclaws on the rear. Soft pack, grass, or asphalt she'll stand on the bumper if you pin the throttle in low & high with the Dyna. Powerslide good also.[img]i/expressions/face-icon-small-happy.gif[/img]

 

well im back from my ride, The wheels and tires do rob alot of power and take some of the fun out as far as sliding and such but they do feel good on trails. I will keep the stockers to use depending on who im riding with. (one group rides fast the other rides slow and muddy). As far as the tittle of this thread... I have determined the CDI was the waste of money. I wasnt in a place that I could change the tires back but I switched out the CDIs 6 different times. I could see or feel NO difference. At 300ft I would be at the excact same speed every time. Didnt do a timed test yet, but should I really have too? Its not worth $250 to get a result that takes a race track timer to notice. I have the Holeshot module connected to the stock CDI, if I didnt maybe I would have noticed a difference. If it was defective wouldnt it have a problem running or starting? It acted like I was just putting in another stocker. Tuesday I will be on the phone with dynatech.[img]i/expressions/face-icon-small-sad.gif[/img]