valkerez Posted February 21, 2008 Share Posted February 21, 2008 Hi I really need to know if any one has any ideas to this problem of mine so here goes.. I've got my '98 thundercat and had it restricted to 33bhp (I'm only 18) and we've had nothing but trouble with it. Its very reluctant to get past the 6-7000 rev mark and wont go much past 70mph, wont move off from stand still very well and acceleration is very poor (worse than my 125). It did have a Scorpian exhaust on it and I'm wondering whether its been re-tuned to get the most out of it and its just not suiting the restrictors any ideas would be greatly appreciated Link to comment Share on other sites More sharing options...
Mr OCD Posted February 22, 2008 Share Posted February 22, 2008 Hi I really need to know if any one has any ideas to this problem of mine so here goes.. I've got my '98 thundercat and had it restricted to 33bhp (I'm only 18) and we've had nothing but trouble with it. Its very reluctant to get past the 6-7000 rev mark and wont go much past 70mph, wont move off from stand still very well and acceleration is very poor (worse than my 125). It did have a Scorpian exhaust on it and I'm wondering whether its been re-tuned to get the most out of it and its just not suiting the restrictors any ideas would be greatly appreciated What was it like before the bike was restricted?... some kits are pretty poor. If it had just a race can on it I doubt it would have been setup for it as they dont really need it ... if its had K&N as well then its very possible the carbs have been fettled... But personally I would remove the restrictor kit and see what its like then... some bikes dont like being restricted. Link to comment Share on other sites More sharing options...
valkerez Posted February 27, 2008 Author Share Posted February 27, 2008 found out what the problemo was. Cylinder 3 wasnt firing, one of the leads was not connectedto a bit right next the carbs. easy mistake suppose but at least its working good and proper now. thanks for your help anyway. Link to comment Share on other sites More sharing options...
ashy Posted February 17, 2009 Share Posted February 17, 2009 Hi I really need to know if any one has any ideas to this problem of mine so here goes.. I've got my '98 thundercat and had it restricted to 33bhp (I'm only 18) and we've had nothing but trouble with it. Its very reluctant to get past the 6-7000 rev mark and wont go much past 70mph, wont move off from stand still very well and acceleration is very poor (worse than my 125). It did have a Scorpian exhaust on it and I'm wondering whether its been re-tuned to get the most out of it and its just not suiting the restrictors any ideas would be greatly appreciated hi can you please till me where you got the restriction kit from and how much did it cost. thank you Link to comment Share on other sites More sharing options...
valkerez Posted February 17, 2009 Author Share Posted February 17, 2009 I went to my motorbike garage and they bought the restrictor kit for us and fitted it. the restrictors cost £200 and it could depend on how much the garage charge for fitting Link to comment Share on other sites More sharing options...
Madison Motorsport Posted February 17, 2009 Share Posted February 17, 2009 Thundercats when restricted correctly should have no problems. It sounds like you have an underlying problem somewhere. I would recommend putting everything back to stock while it is restricted as any 'performance' aftermarket goodies (can, K&N, plugs, etc) will not work well on a restricted engine, purely because they were not designed to be used on 33 BHP. I've restricted at leat 100 cats with no problems at all when stock. Link to comment Share on other sites More sharing options...
valkerez Posted February 17, 2009 Author Share Posted February 17, 2009 mines no problem at all with the scorpion can on. it was a wire knocked loose as the guy put the restrictors in Link to comment Share on other sites More sharing options...
mjkthundercat Posted February 17, 2009 Share Posted February 17, 2009 Mine fired on three once (and only once), its not restricted but some moisture got in to the plugs, and it didn't like it. A spray with some WD40 or let it run for a while can evapourate out the water, just incase it does it again. Link to comment Share on other sites More sharing options...
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