Hello. I have started along the road of converting an old 1991 (91-96 Model) to be a replica of an F1 or TT1 Race Bike. I have been advised that I am "p***ing into the wind" if I try to use the standard carbs with no airbox. Upon further investigation it appears the best solution is a pair of FCR's. Ideally I would like the split kit (where the carbs are fitted seperately, near to each cylinder) but I would consider one of the more common paired sets (which fit together in the same way as the original carbs). I guess it's a long shot but this site has been very helpful thus far so I thought I'd give it a go! Regards to all, Jared
I ran stock carbs with twin K+N filters on my Baines Imola with no issues? It's a lot cheaper to try that first!?
Nothing to do with me ..... But i think the seller is a typical ebay tosser.. He won a 750 ssie frame of mine and will not answer my emails on payment and collection etc.
Nothing really wrong with the stock carbs. My 900ss engine made 84BHP on a Dynojet dyno on CV carbs, with a few engine mods. I have FCR41s on there now, and while it is a bit better, its not really significantly better. As the old adage goes, get the best out of what you have first, and only when you are satisfied that you have accomplished that, spend some money and buy the bling. Then spend time and money setting that up to work right. The further you go from stock, the more time you are going to take to get all the mods working harmoniously together. Just my two cents.
Agree with above except I would not spend money setting up stock carbs to then buy fcr and start all over again. For me fcr's feel like they deliver more torque at low and mid-range, pick up faster and cold running is a bliss in comparison to stock. Idle at 900rpm in -10 easy. Start in that temp, with no choke, easy. Would I spend 850GBP again on fcr's do not know. Fuel economy went up so by my math about 3y of commute of 6k minimum a year to get to about 0 on cost (just hardware). Sadly I do not commute no more but I went from 1.25 tank to 1 tank a week as soon as fitted. Every month save 1 tank so about 252GBP a year. Well that is how I explained it
Thanks all. I guess what I need to understand then is if the bike will run okay with the stanard carbs and no air box. As Dynojet do (or did) a kit that allows the bike to run individual filters (and NuttyNick ran K&N's) then the bike should work okay with no air box. Which contradicts what the people who wanted to sell me FCR's told me. Go figure, as the American's might say. Thanks to all! Jared
I guess it all depends on what you want to do? When you say 'runs ok' what are you after? An acceptable solution, which cheaply produces reasonable power and economy? In which case the stock carbs are excellent, well made, reliable and cheap. A Dynojet kit costs little, but I went down this route, and fiddling with jet sizes, mixture screws and needle clip positions yeilds almost identical results. FCRs, while undoubtedly the best available, are a whopping quantitiy of cash, and in my opinion, hard to justify. I bought mine second hand for about half the price of a new pair. Yes, my bike goes considerably better than a stocker, but theres a lot of other mods in there too, its all about making them work together, its not just the FCRs making the difference. If you want a TT1 or F1 rep don't forget that the rear head will be pointing the 'wrong' way anyway, and if you are after something that looks the same as a TT1 or F1, it won't be. IMHO, something pretending to be something it isn't is probably a waste of time. On the stock bike, you can't see the airbox anyway, so why go to the trouble of modifying this and that, just to try and make something look like its clearly not? You would probably do well to have a look at BikeBoy.org He's been through more 900ss engines than anyone, and knows his stuff.
Thanks for your thoughts. What I want is a bike that runs reliably and is not a pig to ride. I was going down the FCR route as I thought that was the only thing that would work. I'm coming round to the point of view that the standard carbs can be set up to work with individual filters. The airbox will be going because I will be fitting a different style tank and there won't be room for the airbox. I'll ckeck out BikeBoy.org. Thanks again.
