my opinion is this...

the bike has enough for me at the moment, and I'm not a real big speed demon. However, this bike is going to be in my posetion for a long time. I love this bike. If I ever got another bike I would still keep this on. (going for a naked streetbike) When the piston start wearing out is when I"M going to do the stage IV kit. reem it when it needs it so to speak. But, ultimately, the choice is yours bronch. As far as things changing....well...you'll probably get to work a LOT faster[/emoticons/emotion-1.gif]

 

I love the extra 'Uhmp' the Stage IV kit gave it. No problems with reliability so far. I do about half of your milage and have about 4000 miles on the Stage IV kit so far.

 

Seems to me that with the quality parts that available from OE or PR, that the warrior would be more reliable not less with the upgrades

 

If go to Yamaha's page & check the specs on the sport bikes you will see a lot of 10 to 1 compression motors. That includes sport cruisers also.

You need to use premimum fuel in them.

 

Bronch, I wouldn't worry too much about relaibility, remember that when you are making these up grades almost with out exception you are putting in better more precise and more durable parts than you took out (a good example is our indestructable ceramic lifters). Not to mention when you go with ported big valve heads, better air filters and a good exhaust you increase the efficiency the the entire engine as well. We have LOTS of 95 to 105 hp Road Stars out there and (knock wood) have never see a problem even after lots and lots of miles.

 

I only have about 4k on my stage 4. It sure is worth the difference in seat of the pants acceleration. It also runs great around town.

 

Thanks for all your thoughts, guys I really appreciate it. I wasn't thinking about the Stage IV kit, but rather the OE and PR upgrades to high compression pistons, high-lift/longer duration cams, bigger valves and such... should I expect more wear and tear, higher maintenance, frequent break downs? You pretty much answered it Rob..., but my concern is the air-cooled engine breaking down and not being a big wrench turner.

 

I'm working on a "engine in a box" program as we speak where you ship us your engine in a crate and we do all of the work and ship it back to you, when it gets "home" you just throw her back in and plug the map we supply you with into your PC3 and bingo, instant easy horsepower without ever pulling off so much as a pushrod tube. Plus it's done right the first time. I'll have more posted next week.

 

Rob,

How will you dyno it and map it with no bike?

 

It'll come with a base map (specifically for our 108 complete engine kit, with pro-pipe) made so you can get your bike going as soon as you get the engine in. Custom mapping would be best but it sure beats guessing or running on a very wrong or "0" map until you can get it mapped.