Ya they suck a bit more fuel. The cub does anyway. I think that was part of the reason the guy I got this from sold it. If you've got one of cams motors already I wouldn't think you'd see a big gain goin to a serval unless you were to have him port one.
My kid is 15. He thinks it's cool. So it's going to get freshened up and go on his bike with a set of shearers and 35's. He can flog the piss out of it for a while. I'm done with the pos.
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I can't tell you that I've been experimenting with that passion 421 that those snipers were supposed to be designed around. It was supposed to be a dunable motor with a monster top end. I haven't ridden an as cast cub but I'm guessing from what I've seen from the dyno sheets that they probably ride similar to this turd. I know horsepower is about the same. The mid range and low-end on this thing sucks balls. It will have a horrible bog and if you don't clean it out correctly you'll never get it to come out of it. That was with snipers and 35's. So I took the information that the latest wonder builder was throwing out ol grand river Guy and put a set of pro circuits and 28s on it. Guess what? It still sucked balls it just wasn't as fast. I remember that guy saying a ported cylinder is ported cylinder it's the pipe that defines how it rides and runs. I went all over the board with jetting and got nowhere. So I'm trying a different approach with the serval. I'm no builder by any stretch I'm just throwing parts together. But I think I'm going to call bullshit on that porting theory. Will find out this weekend with the serval but I know how the stock cylinder dune ported bike ran it was way more fun to ride when you're just playing in the dunes. I'm hoping for the same outcome with the serval but maybe a little more on top.
Ya I know deadbeat. Rjayb has shearers on his ported serval and they work well so we'll see. If they suck I've got these other sets of pipes I can try out. The dune ported big bore cylinders ran good with the pro circuits but I never tried other pipes before I popped a dome. I tried my passion cub on pro circuits and it still sucked to dune like a cub does. Even with smaller carbs on it. So I'm hoping with the different port timings of this serval that'll change a bit.
Just slapped jayz350xzzkxndns or whatever his screen names is old old 421 serval on my 4 mill bottom end. Just has little 28 pwks vf3s and inframe snipers on it. Haven't ridden it yet. This weekend is goin to be the 1st trip. So not sure how the snipers will do but I think on this cylinder they'll prob be pretty good.
They're in good shape. Just took them off my duner. I'll polish then before I sell them. They'll all get that treatment. They've just got the newer I think 304 silencers with polished cans and no stickers.