benefits of Prima exhaust on a Roughhouse???

[Yorkiemom]

Can some of you give me the benefits of a Prima exhaust added to a Roughhouse? I am going to look at a used 2011 red Roughhouse that had that added last year. The seller is telling me the initial take-off is a bit slower but that it holds speed better? Does it improve/harm fuel efficiency?...power? If it hurt initial response, what is the purpose?

Also, he is asking $1500 and the scoot has 1400 miles. How does that sound? He said his wife is keeping hers but he, being 265 pounds, could not keep up with her on a same size scoot...so he got a bigger one and is selling his. Will a 265 pound man have perhaps put unnecessary wear on suspension or anything else? I have a Buddy but have no knowledge of the Roughhouse, other than a test drive and seeing them in my dealer's shop.

Any info. you can provide would be helpful in deciding whether or not to add the Roughhouse to my fleet.

Thanks all!
Stacey

[spr0k3t]

There's a good reason to put a prima pipe on the RH50. If you don't do any sort of tuning, yes it will drop the initial acceleration, but it will increase horsepower overall. You can compensate the changes by increasing the contra spring to a 1000 or 1500 for a higher grab point. What I would also do is up the size of the primary jet. Yes it will increase the fuel consumption but at most 5%. The scooter is capable of handling 300lbs of total gear/rider without much problem.

1400 miles for the scooter at that age is perfect. You know for a fact the scooter has been used and used well. The worst thing you can do to a scooter is let it sit and do nothing.

Personally, I love the ergonomics of the RH50 over any of the buddys. Then again, I'm 6' with a 31" inseam, so I need the extra leg space.

[Yorkiemom]

You can compensate the changes by increasing the contra spring to a 1000 or 1500 for a higher grab point. What I would also do is up the size of the primary jet. Yes it will increase the fuel consumption but at most 5%.

Thanks so much! I will check with the seller tomorrow when I go look at the scoot to see if he did either of those things. If not, have you any idea how much those might cost to "get it up to speed?"

Do you know if the exhaust mod voids the warranty as many mods will? Since it's a 2011, I assume it is still covered within the warranty period...dependent upon actual sale date I suppose. The scoots come out really early so that may not be the case. I bought my 2012 Buddy the first week of June, 2011.

Again, thanks!

[spr0k3t]

Thanks so much! I will check with the seller tomorrow when I go look at the scoot to see if he did either of those things. If not, have you any idea how much those might cost to "get it up to speed?"

Do you know if the exhaust mod voids the warranty as many mods will? Since it's a 2011, I assume it is still covered within the warranty period...dependent upon actual sale date I suppose. The scoots come out really early so that may not be the case. I bought my 2012 Buddy the first week of June, 2011.

One thing you will want to know, the warranty is non-transferrable. The exhaust mod does void the warranty unless the exhaust was installed by the dealership. However, the point is moot once the original owner sells the scoot.

Cost wise I can give you a fair estimate. The contra spring will run you anywhere from 15-30 for the part and about one hour labor at your shop (rates vary). The rollers will run you anywhere from 19 to 50 depending on what you want to go with. If you know the exact tune you want, you can just purchase a good set of rollers for 19, or sliders (preferred by most) for 25. If you don't know, it's going to require a bit of the butt dyno and some old school engineering with a sharpie. Essentially, you want the belt to reach max circumference on the driving pulley. If it maxes out too quickly though the acceleration is going to be really boggy. Not enough circumference, your top end suffers. Heavier weights will push the variator out quicker making the belt hit max circumference sooner. Lighter weights will let the engine rev to redline quicker and give you a much higher acceleration at the cost of top speed. There is a very fine line in tuning the weights to achieve exactly what you are after. With the upgraded exhaust and a stiffer contra spring, you could probably get away with just a half gram lighter per weight. The more performance parts, the heavier you can go on the rollers.