I have a 2000 banshee I'm setting up for mx, I have pro circuit pipes, boost bottle, cool head, tcs shocks, dura blue axle, burgard a-arms, lsr steering stem, denton dampner, etc. My question is whether or not the trinity 2 into 1 carb is worth the money, the bike needs more bottom end, and Bo at trinity says this is exactly what I need, and that the graydon one doesn't work because something is not close enough. Any advise on this subject will be greatly appreciated.
thanks rick new racer e-mail yamaholik@cs.com

 

I'm not sure what size the Trinity carb is, but I've been told by another manufacturer that it is too small. There is a dyno chart floating around on the net that has a banshee using a trinity 2-in-1 carb and I was suprized at how low HP that it had.

I believe that Moto-Fast makes a 2-into-1 Carb (as well as exhuaust) and they use a 40 something Lectron carb and according to the owner of Moto-Fast, that is barely big enough.

Hope that helps.

 

I had the Trinity kit on my '87 and liked it. The bike was mainly setup for drags/hillclimbs but I used that carb for ease of tuning and ridability for play riding. I personally feel the unit is well worth your hard earned cash. I don't know if they've changed it since '97, but I got mine without the airbox adaptor since I was running in the sand. Since you're going to MX, I would run the airbox adaptor. Because if you run a filter on the end of the carb, you need to stabilize the carb somehow, especially in rough conditions like MX. Go for the carb kit, but don't have them do any motorwork. They're manufactured products are good quality, but they're manual labor has gone downhill in past years.

 

Duncan,

I am the perfect person for you to speak to on this topic!

In the past year, I have done numerous hop-ups to my 98 Banshee engine (Wisecos, Port/Polish, Bore, Coolhead w/18cc domes, Barnett clutch, etc.) I also fell for the "hype" and good looks of a 2 into 1 carb kit.

Well, I first got the Trinity Mark IV Kit - SUCKS! Not only did Trinity refuse to answer my installation questions on their 1-800 line, they were rude while "talking to me on my dime" and even had the nerve to tell me to call back 6 straight times!!! My first 6 calls on my dime were met by a "we are too busy in the shop to speak with you right now." The female in customer service was pathetically rude and nasty!

If that wasn't enough, on my third ride with the 2 into 1 on, I noticed that my Banshee suddenly began running extremely hot and erratic. When I pulled over and looked, I couldn't believe my eyes. The rubber boot that connects the carb to the intake manifold had split! To add to my woes, I was four miles from my home in Mexico and it was 1 a.m. I pushed that thing for almost two miles in beach sand before I was able to get someone to tow me in the rest of the way. This was bad enough, but imagine how close I came to fryin' my engine from suddenly running too lean.

When I contacted Trinity about the tear in the rubber boot, their response was, "Well, you are supposed to put a wire tie around the air filter and attach it to the frame. The carb needs this support since the boot is made of rubber." There is no where in the installation instructions that mention this. Had they been helpful when I called them about installation, maybe they could have told me about it. For those of you who are unfortunate to own the Trinity 2 into 1 kit (or any Trinity part), run out to your bike and ensure your rubber boot is in good shape. Also, put some wire ties around your air filter to help support the whole kit.

I still liked the idea of the 2 into 1 kit so I went with the Graydon next. This is a much better set-up than the Trinity. No rubber manifold boots here. It is all first grade aluminum. It looks great installed, especially when you have their 2 into 1 aluminum manifold polished. Sweet, very sweet!

However, the only problem with the Graydon kit was big. I just couldn't get it tuned to ride at sea level. No needle adjustment, main or pilot jet adjustment, etc., could eliminate all of the flat spots. Even the best "wrenchin'" shop in town couldn't seem to fix it. The kit just didn't work.

Well, I am now the proud owner of two Keihn 35mm Air Strykers. The bike now rides like the perfectly tuned machine I wanted! I only wish this is where I started.

Bottom line: in my opinion, [red] Trinity SUCKS!!! I will never buy anything from them again! They are rude and have zero concept of Customer Service. I am not just munchin' bad apples here and taking my frustrations out on Trinity. They had numerous opportunities to get it right, but their ignorance almost cost me to destroy my freshly built engine. [/red]

As a side note, I addressed this same issue with my Trinity experience sometime within the past six months on the ATV Connection. Hopefully you could do a search and find it. Several other disgruntled customers responded with similar complaints about Trinity's rudeness and complete lack of Customer Service.

The Graydon seemed to be a very well made set-up. It sure looked good, but I just couldn't get it to work right.

My advice: stay with two carbs. Don't let anyone tell you different!

Good luck and let me know what you do!

 

I've had the Trinity CV single carb kit on my '95 Banshee for 3 years, and I like it alot. Granted, this kit is not for making more horsepower. But, I liked the way it smoothed out the Banshee powerband, and made the powerband wider. Plus it is a snap to do jetting changes now. I may have lost a little top end, and don't beleive that you won't with this kit. But what you make up in the bottom is good, and makes the machine more fun to ride. I ride mostly in sand, and do just fine against other basically stock bikes. It also removes the stupid Torse system from the carbs and uses 1 throttle cable instead of 2, cutting thumb throttle effort in half! I wouldn't go back with 2 carbs, so I give it a thumbs up. It really depends on what you want to use your Banshee for, this kit has a purpose and it's not made for tons of horsepower. Just my 2 cents.

Jeff
'95 Banshee

 

Duncan, I agree with the rest of the replies. I have the graydon 1 into 2 and had a hell of a time getting it jetted right but finally did. I am not happy with it and went back to the dual carbs, stock for now. not for long. It does have some advantages but I don't believe the bottom end was that much noticable, my midrange is gone with that setup, my Banshee was pretty fast on the 26mm stockers with the rest of the mild build I have. Banshee's love speed, and third and fourth is where it was at for trail riding. It's pricy but there is nothing like the feeling of duals!!!!!!!!!!!! ride on......