MOPED ARMY

I have around 7k miles on it. I want to go the polini route for my e50. My timing is already set so basically I can just bolt and blast when I get it. I like the polini 64cc from treats. I believe its a 2 petal reed. Should bolt right up. I'm willing to sacrifice a little top end by leaving it unported

yeah you wont be disappointed, polini is a great kit. the new castings as of about a year ago are really nice too, way less prep and cleanup than the old ones. probably could run it right out of the box, but with a couple hours prep work, you'll get another 4-5k miles before you even have to take it apart.

if you've already put 7k miles on a kitted engine, its time for new crank bearings and seals anyhow. better to replace them now when its all apart than have it take out the crank and your brand new $200 kit.

I don't agree that the case matching is essential- some of the highest mileage polini kits i've seen were not case matched at all- but if you are in there anyhow, once again, its worth taking the time to do it right.

18/42 should be good gearing on that. a cheap pipe like a boss or bullet will have you right around 50 mph if you tune everything right. I usually ride my wife dubs so i'm geared a little shorter than that, 18x45, and my PHBG 19 polini/boss setup will do 52 on the flat and still holds 45+ up even a very large hill with both of us on it. personally i think the sweet spot for that kit is pairing it with the PHBG and tecno estoril, for a little more money you are getting a lot more performance and not getting to the point where it starts breaking shit.

So Roffman what you're saying is I have to port it? I can't just bolt and run it? My timing is already 14-15 degrees BTDC (enlarged the stator slots and used a timing light to achieve this btw). Also is a 86 jet good to run with a polini paired with 15mm genuine bing/matching 15mm intake?

I told you to get the DMP kit and you don’t have to change much,

if you get the Polini kit you have to tune or do stuff beyond of your skills and since you don’t know what you’re doing nowadays and with the virus you can’t find anybody like me who never seized a bike out of almost 200 2t bikes Including full-size street bikes in my life!

So believe me or believe a College educated mod before me who knows nothing (my kids are older than him) and I mean nothing because every bike I built is still running while this mod who’s posting bullshit about non-porting and his puch bikes failed within a year and a half while mine are still been running since 2006 with my 200 pounds and many times my wife, my son and me were riding 10 miles back home,

(I mean wow, I’ve Built over a dozen polini kits in mid 2000s and non failed ever!

During that time so many seized on MA almost every time as soon as they would put one on their bike including the mod who’s posting the wrong information now,

It Sucks that mod is posting wrong info, but I’m used to it that’s why I never was a boss in every job I worked at because everybody that’s a boss knows nothing,

If you don’t don’t know what you’re doing you become a teacher,

Most every teacher boss or supervisor know nothin about nothing when it comes to the actual work,

I can’t wait to I’m banned Here so I don’t have to repeat the same thing I’ve been repeating for so many several years which is everybody but me posts bad info repeated over and over,

whats the difference between dmp n k-star. i thought they were the same.

Here's what I'm going to do to the new kit. I watched a youtube vid on how to do this. Pics below

id get new rings n go nuts on your old kit first.

Man, Ken, that sounds kinda personal, I wasn't telling the guy he should slap it on, I always match them, but I know a couple bikes running around at rallies that aren't matched and run fine for years. It's the best way to do it but definitely not the only way. Statistically, you're gonna have more unmatched bikes seize just because the people building them are cutting corners everywhere else or beginners that screw it up.

I feel bad you get bummed about it, but you miss out on the larger half of this whole community, going to rallies and stuff; you see people blasting, you ride long distances, you party together. You'd probably love some of the long ride camping rallies we do, 200 miles in a weekend loaded down with all your camping gear.

I don't build the best bikes around here by a long shot but I've been going to rallies since 2006, building bikes that keep up and never, ever, loaded in the chase. Those of us that see each other each summer know whose blasting, who is broke down, and have a rapport. You're a valued member of the community around here but you lose respect when you think you have the only right way to do stuff or don't respect people that build or ride differently.

If my profession has taught me anything it's just how much I don't know. It's also taught me to be evidence based and objective. When you ride with other people in person you find out pretty quick what works and what doesn't. If we give you a hard time around here, part of it is because you're out there doing your thing, posting blurry cell phone video of a stock speedo telling people that ride hard miles in a group it's the only way to do stuff. That's cool and all but riding with dozens, hundreds of other bikes a year you see a lot of stuff that doesn't fit into a pretty box of what the manual says.

Either way we all hope you stick around, sounds like the o.p. made the right decision.

Also I'm ordering the MLM Davinci pipe for it. I hope it's a good pipe for $280

What do you mean? I have a whole range of 70s and 80s Bing jets laying around. What tuning changes would I have to do exactly?

Simply put, that pipe is more suited to very high performance applications (very high revving/higher flowing/ larger displacement cylinders) and would be overkill for what you need. Your setup won't be able to utilize what the pipe has to offer. You'll get better all around performance from known "all rounder" pipes like estoril or circuit, or the treats black pipe. And you'll save a couple hundred bucks.

Thank you Ken! I ordered the DMP PP kit from Dos cycles like you suggested. I hope it's better than the Kstar. Thank you for your help. Much appreciated

I know I was flip flopping on my replies on my earlier posts (I couldn't decide on which kit to get at first). Ultimately I went the 70cc DMP route. Just finished putting it on and took it for a 2 mile test ride. Better low end and better midrange versus the old 70cc kstar (I only went up to 25mph then backed off since its only the break-in period). 2miles in and I couldn't be happier