sredish

how 'bout Polished Off

First off, I'm sick of them doing all these shootouts and not including the banshee anymore. Yeah, the yfz will beat the 450r and so on, what about a head to head comparison with the original. They know that the banshee was race ready machine (while not the best suspended) long before these newbies, lets see what they'll do. I can understand not including the 250r because its no longer sold, although its a great machine, but the banshee is still being sold new, just like the yfz and 450r. Sorry, it just irks me how Dirtwheels can just turn their back on something like it was never there. There is still a huge following for these quads, so why not include them.

what type of mods do you have, what is your elevation and air temps?

I was told the spacer is worth a couple points on the main jet due to the extra amount of air coming through at high rpm. I jetted with that in mind and came out pretty good. The VForce have the spacer built in, I don't know if that makes a difference. I was surprised at the smoothness they provided.

Check your other Reed Spacer topic to get more info.

I ran 310 with the fattys in the summer before I switched out my carbs. That was with the proflow air kit.

I'm trying to remember, and I'm fairly certain I have a 180 main in my machine. Its a little rich for this time of the year, but the weather fluctuates so much that trying to jet for the conditions would be a weekly occurence. I can handle a little smoke now and them. Like Banchetta mentioned start with the 185 and work down if need be. I'd imagine the 180 will work for you given the time of the year. I wouldn't doubt over the summer needing to go somewhat richer, maybe 185. Good luck and keep us informed.

You may even try 160 and see how it does there. Not too sure about the pilot. 38 is probably a good place to start. If in doubt go richer and back it off.

ScreaminShee, I think your shee will be screamin. I think 28s or 30s will probably work pretty good in your application. Let us know how it turns out.

I think Meats got it more or less in my opinion. You'll generally feel a sensation of more low/mid power. I don't know if it would show up on a dyno as more power, just maybe a smoother curve. I set my machine up to pull more mid power out and I believe the VForce reeds helped that. As a stock motor, I wouldn't say spacers would do all that much. I believe that with bigger carbs, it will help you pull more volume. Make sense, think I confused myself.

Well, my pops saw me doing some jumping and stunt riding on the 110 and took it away and sold it. Did I ever see that money? I was in the 4th grade when he sold it. It took till the 6'th grade to get my Honda 350x.

uuuh, yeah, no chance

I agree. I third that. Get to work on the jetting and you'll be happy you did.

I'd start with taking both plugs out and have someone kick over the machine to ensure your getting spark at both plugs. How old is the gas? If its old, put fresh gas in. If you have the fresh gas and good spark they both should be hitting. I generally put my hand behind the muffler for a real generic way to feel if they are firing. You'll feel a good push of air hit out of both pipes if they are both hitting, if one hits and one is weak or nonexistent then it may not be firing. You can check the jetting in both carbs and check that they are both working properly. You might let a Yamaha tech look at the carbs if your still concerned with it firing or not. If one isn't firing and you run it, you can potentially break the crankshaft in two. Not a good thing. Good idea on installing the fresh plugs.

This is my first winter using this oil, I started using this summer. So, I'm not really used to dealing with this type of oil. I've always used full synthetics. I like it, but I'm not sure if its the jetting, fuel ratio, or oil seperation. My friend/tech tells me its the oil, and it does seem to clear when warm, so I deal with it. It starts fine, and runs fine, just needs a few kicks to blow the oil out I guess. It also spits oil somewhat at startup and that goes away when warmed also. I guess its the oil. I'm using a 32:1 ratio, and I'm thinking of going to a 36:1 or 40:1 for the rest of the winter. Ledofthezep, do you notice any excess smoking when cold, or do you have any issues with the oil in cold weather, it sounds like it starts fine. I've considered switching oils, but overall I really like this oil. What mixture are you using?

Funny, here's a listing of cars they fit: NGK - br8eix Automotive Fitment: Vehicle Displacement Engine VIN FERRARI 400I (1985) 4.8 V12 FERRARI 400I (1984) 4.8 V12 FERRARI 400I (1983) 4.8 V12 FERRARI 400I (1982) 4.8 V12 FERRARI 512 BBI (1985) 4.9 H12 FERRARI 512 BBI (1984) 4.9 H12 FERRARI 512 BBI (1983) 4.9 V12 FERRARI 512 BBI (1982) 4.9 H12 FERRARI 512 BBI (1981) 4.9 H12 LAMBORGHINI COUNTACH (1985) 4.8 V12 LAMBORGHINI COUNTACH (1984) 4.8 V12 LAMBORGHINI COUNTACH (1983) 4.8 V12 LAMBORGHINI COUNTACH (1982) 4.8 V12 LAMBORGHINI JALPA (1988) 3.5 V8 LAMBORGHINI JALPA (1987) 3.5 V8 LAMBORGHINI JALPA (1986) 3.5 V8 LAMBORGHINI JALPA (1985) 3.5 V8 LAMBORGHINI JALPA (1984) 3.5 V8 LAMBORGHINI JALPA (1983) 3.5 V8 LAMBORGHINI JALPA (1982) 3.5 V8 LAMBORGHINI JALPA (1981) 3.5 V8 LAMBORGHINI SILHOUETTE (1977) 3 V8 LAMBORGHINI SILHOUETTE (1976) 3 V8 LAMBORGHINI URRACO P200 (1976) 2 V8 LAMBORGHINI URRACO P200 (1975) 2 V8 LAMBORGHINI URRACO P200 (1974) 2 V8 LAMBORGHINI URRACO P250 (1976) 2.5 V8 LAMBORGHINI URRACO P250 (1975) 2.5 V8 LAMBORGHINI URRACO P250 (1974) 2.5 V8 LAMBORGHINI URRACO P300 (1976) 3 V8 LAMBORGHINI URRACO P300 (1975) 3 V8 LAMBORGHINI URRACO P300 (1974) 3 V8 PORSCHE 911 (1968) 2 H6 PORSCHE 911 E (1971) 2.2 H6 PORSCHE 911 E (1970) 2.2 H6 PORSCHE 911 L (1968) 2 H6

First off, I got that backwards, as I always do. Its BR8EIX. I bought them at O'Reillys for a whopping $7 bucks a plug. I was having trouble with the smoking at cold start (mainly due to the seperation of the Castro 927 oil at cold temps). My friend (and a Yamaha tech) told me to start using the Iridium plug and it will help burn more oil off in a rich mixture, plus spark hotter and run better. I've never been a fan of the Splitfire crap or all the other catchy plugs. I was pretty hesitant, but since my tech told me to use them (and he's against the catchy crap) I tried them. I honestly can tell a difference in cold start and seems to sound stronger. In the winter, with this oil problem, its 8 to 10 kicks to start cold, now to 3 or 4. It always has started on first or second in the summer, and always first when warm. Just in the winter this oil sits in the bottom and gets sucked in first. NGK's BR8EIX page Here's a quote from the NGK site: Try them out, I think their worth the extra tag.

Maybe it's time for an Adjust-on-the-fly ignition. I know I've been wanting to try one.

Yeah, I lubed that sucker up once it came loose, and now its as loose as can be, I can pivot it by hand with ease. My bansh pulls 15/41 easy. It barely feels like I've changed it, except in the higher gears it pulls longer. There's no doubt that it will handle the 15/40. I'd like to try a 15/38. I'll probably keep it here for a while. I've ordered a 42 and 40 teeth sprockets, and I'm looking for a 38 for experimenting. Like I mentioned before, the front won't be changed again, until its worn out. Scott

Alright, are you all ready for this one. Looney Tuned Ok, so it's a little dumb.

What about your jetting? If its a little rich it won't want to start. I know someone mentioned the pilot jet. Also, what oil do you use. Castor oils (Castor 927) will seperate below 35 or so degrees and you will have a really rich mixture going to the motor when you start it cold. I know this personally, and I shake my machine before I start it in the winter. Not too mention, they will run a little richer in the winter anyway. So you could be borderline in the summer, but never notice, and when winter comes, its just enough. Try some BR8IEX NGK Iridium plugs (same as BR8ES, just Iridium version), the spark is a little hotter and that might help. Also, how is your overall ignition? You might have just enough power to keep it running, but low enough that its hard to get started. Just a thought. Scott

I started using the BR8IEX, Iridium version of the BR8ES. Someone told me the Iridiums would spark a little hotter and help burn more fuel. I don't if thats true or not, but it does seem to start easier when cold. I run Castor 927 and in the winter it likes to try to seperate and if its really cold it will see a really rich mixture at the bottom of the tank. I shake it a little and that helps and once it warms up its fine. The Iridium plugs help burn the oil off the plug and help keeps from fouling. Try them out.

I would recommend Trinity's CV 35mm Keihen (pwk) single carb kit is the only way to go. I've tried the 28mm and 30mm pwk's. This setup is a 1 minute or less jetting change, no synchronizing, no excess crap. The carb area is ten times easier to clean and no longer a rat's nest. It looks much more finished. The throttle is a tad looser, since your not pulling two slides. Oh, don't let me forget the power. This setup gives you more power than the other setup, in my opinion. The midrange pull through top is wicked. On dual carbs, air is pulled through the carb for a split second and then stops. With the CV kit, air is pulled through the carb constantly and the cylinders will see more air in my opinon. Here's what the kit looks like. Link to Trinity's CV kit. I'm sure whatever you'll find will work great, its just a matter of opinion. I like simplicity.

Good job for having the guts to try. Thats the only way to learn. You could very easily pay someone to do it, or you can give it a try and see where you end up. If you got a performance gain out of it, congrats. The next time it will be easier and you can use what you learned this time next. I'm sure a pro shop might be able to egg some more power out, but you saved money and pulled more power, that sounds like a win win. Scott

I personally like Keihen carbs, and some like Mikuni. Like wassup said, if they are the same size, sounds pointless, but if you can get a decent increase then go for it. I'm sure you could make a few bucks if you didn't use them.