i have the limited addition suzuki ay50 katana and it cost me 300 to buy and 250 to fix it does about 40mph but does eat my fuel maby 15 - 23 pound a week mine is white but the only problem i have is the back break goes spongey and after 5 mins goes back to normal any sugestions

hi i bought a ay50 3 years ago i got it for £50 with cracked panels no barrel or piston and a handmade exhaust so i went to buy a 70cc barrel and piston and exhaust about a year down the line i got all of the panels eventually all off different bikes its had 10 previous owners i tested it just up and the road so i taxed and moted it it cost 200 hundred for a voltage regulator including labour the exhaust was 77 the barrel and piston was 110 and the panels cost about 100 all together it needed a vacume tap before mot aswell then the head gasket kept going 2 times so after that i put 2 on it went really well until a month down the line it went again so i bought another 50cc engine 5000 miles for 110 it goes better with that in and as fast not had a problem yet and its been in the bike for three weeks now thanks for reading

I bought my Katana with a Viper exhaust on it, but only goes 40! would it still be restricted or is somthing wrong with it? its 2007 only done 16500 miles, any ideas?

I bought my 2004 Suzuki Katana as project and had to spend alot on plastics. Mine is an air cooled model and as standard had no engine problems. After replacing exhaust with gianelli race exhaust, changing rollers and placing a 70cc malossi bore kit, I have been through two drive belts and recently had to replace the coil but the bike still does not run. Replacing the piston rings is my next solution. Overall the bike is fantastic for acceleration but not top speed with the air cooled Model. Any ideas were can find alot of parts for the bike

I've got a 2001 ay50 katana wr sport. 70cc bore kit. polini variator. polini 7.5 g rollers. leo vince tt exhaust. It only does 50mph! Spent a lot of money on it and it simply will not budge over 50mph only on downhill. I believe that it has got to be restricted somewhere but i dont know where.

How much for an engine rebuild anyone have any ideas. This bike is amazing it's my first bike it's a 1999 version and does 45mph with no exhaust or race rollers it's done 13,000 klm and want to get an engine rebuild for it has anyone got a clue how much it will cost.

I've got Suzuki Katana WR '01 Movistar (new model), and I've unlocked suppressor and VARIATEUR (the ring on the ridge). I can only go 65km/h. What I should do to go faster?

I have had my Suzuki Katana r a few week naw and it was restrict in the exhausts and the variator now this ped will get ta 50 faster than any other ped on the road inculding Aprilla sr 50s and Yamaha jog rr all round I have had no problems with it and a get a long with it turmemdusly and you don't have you spend loads ov money on 1 cos I shopped round and a 54 plated one in mint nik with only 7000 miles on the clock for 450quid a cant flat it if one cums up in your price dnt fink just buy it.

I have a Suzuki ay50 Katana on a '53' it had a new jama laser exhaust and thats it. I have had 40mph out of it.
Just wonder if anyone has deristiced their katana of same year and also how can i do it?

I have a Suzuki Katana 04 stock except for a Seven exhaust. Recently I have been going along at my bike's top speed along flat (40-45 mph) and all of a sudden I hear a big pop and my bike cuts out. I pull over my exhaust steams and sometimes so does my cooler. Does anyone have any suggestions what the problem is? thanks

I love this Suzuki AY50. I have a 1999 model with a leo vince hand made exhaust and want to know if theirs any other way to derestrict it? any comments would be great! I read one review about a cone shaped piece of metal in the exhaust that can be removed, could someone please tell me where abouts it is?

I have a 07 Suzuki Katana (not derestricted yet) was wondering what would be the best to make it faster? Thanks!

I have an Suzuki AY50 ak5 katana on an '05' plate and its brilliant. Its de-restricted with a viper exaust. It will cruize at 40, do 50 on the flat and 60mph-65mph down a hill. Brilliant bike! Reccomend to everybody.

I have an 05 Suzuki Katana r Di-Tech When your looking for pipes the Leo Vince handmade TT is amazing i would tell you how fast it goes now but it still has the ecu electric restriction and i cant work out how to remove it any comments would be nice thanks.