john b Posted July 14, 2014 Report Share Posted July 14, 2014 Hi there Got a TLM 50 for my son, and was after a big bore kit. I cant find anything TLM specific, but can find an MT50 60cc kit below - apparently the same engine ? Can anyone confirm before I buy ? http://www.patternparts.net/fcm-Barrel__Big_Bore_Kits-Honda_MT_50-18-69.aspx cheers John Quote Link to comment Share on other sites More sharing options...
andy m Posted July 14, 2014 Report Share Posted July 14, 2014 99 per cent they will interchange. The tlm had road kit fitted so they could be registered as a moped. I am sure the engine was same as the earlier MT and MB5. Look at this link, 3 rd pic down is Peter Gaunt, his bike is 62cc http://www.trialscentral.com/forums/topic/43483-perce-simon-sammy-miller-series-17th-november-2012/ Quote Link to comment Share on other sites More sharing options...
john b Posted July 14, 2014 Author Report Share Posted July 14, 2014 Thanks for that ! Yeah I've seen Peter Gaunt riding his at some trials - and it certainly is capable ! (as he is as a rider !) We have tried the TLM before strip down - Its being prepped for my sons Christmas present (he's 12) and it works well - just need to rev and splat to get the front end up - but seems a great little bike - a great step uf from his Whitehawk 80 cheers - and think I'll invest in the 60cc kit John 1 Quote Link to comment Share on other sites More sharing options...
fatchef Posted July 27, 2014 Report Share Posted July 27, 2014 Hello, the tlm 50 engine and the mt5 mb5 motors are not the same.To be fair to andy m there are a lot of internal parts that are interchangeable. Tlm motors are the next gen motor along similar to mbx 50,(brit market) mtx 50 s.h ( german market). Someone does a 70 kit. vsmotoparts.com. Not sure about exhaust port angle? ive done a fair bit to mine, 100cc.Stock gearing and pulls third up hills,( with a bit of run up:)great little bike. Always puts a smile on my face. Hope this is some help. Quote Link to comment Share on other sites More sharing options...
john b Posted July 28, 2014 Author Report Share Posted July 28, 2014 Thanks for the note - I've emailed but the company are on holiday so I'll hopefully get sorted. Have you got any photos of your tlm ? Cheers John Quote Link to comment Share on other sites More sharing options...
turbo Posted July 31, 2014 Report Share Posted July 31, 2014 Hi, i am also trying to upsize my tlm50, But can confirm that the mt50 big bore kit from pattern parts DOES not fit , I bought one and tried . What is my next move , any suggestions please ?? Quote Link to comment Share on other sites More sharing options...
john b Posted August 3, 2014 Author Report Share Posted August 3, 2014 Hi there Ill post the reply from the company in holland when I get a reply after the holidays Cheers John Quote Link to comment Share on other sites More sharing options...
turbo Posted August 3, 2014 Report Share Posted August 3, 2014 Hi John, that would be really helpfull to me so will wait for your response, thank you. I am looking also to the kx65 piston solution which has been mentioned on these forums in the past , but dont know to what extent the piston needs to be modified , can anybody perhaps help .?. Quote Link to comment Share on other sites More sharing options...
john b Posted August 23, 2014 Author Report Share Posted August 23, 2014 Latest update No joy from company in Holland (vsmotoparts) - spoke to them and they just said to have a look on the website for something I thought would fit ?? I have a friend who lives in Japan ( search on youtube and loads of videos of TLM50's trialling in japan !) who is investigating out there..... cheers John Quote Link to comment Share on other sites More sharing options...
john b Posted November 6, 2014 Author Report Share Posted November 6, 2014 And the finished result is......... Quote Link to comment Share on other sites More sharing options...
nph779 Posted August 18, 2018 Report Share Posted August 18, 2018 I have a TLM 50 too and would like to upgrade to 65cc, would be good to compare notes Quote Link to comment Share on other sites More sharing options...
GillesBelis Posted September 20, 2022 Report Share Posted September 20, 2022 Hi, I have a question, where did you found the after market silencer. I have a TLM 50 without silencer... Thanks in advance! Quote Link to comment Share on other sites More sharing options...
snailspeed Posted August 24, 2023 Report Share Posted August 24, 2023 (edited) for future reference: honda mt/mb and first model mtx cylinders, heads and crankshafts do not fit. The clutch and gearbox does but the gear ratio's are off so they are not useful. the 50cc engines/engine parts that do fit: MBX50 air cooled AC03, MTX50 2nd model air cooled AD09 MBX50 water cooled AC04 MTX50R water cooled AD06 NSR50 water cooled AC08 CRM50 liquid cooled you can also fit 80cc engines: MBX80 liquid cooled HC04 MTX80r liquid cooled HD08 MTX80R2 liquid cooled HD09 NSR75 liquid cooled DC03 NS-1 75 liquid cooled CRM 75 liquid cooled CRM 80 liquid cooled. for the 50cc engines above there are several 63/65cc (marketed as 70cc) big bore kits available, both taiwanese/chinese and better quality like Malossi. for the 80cc engines above there are several kits available from 80 up to 100cc (often marketed as 110cc) from for example Athena and Gilardoni. Gilardoni also makes a 44 stroke crankshaft to be used with their big bore kit. The standard TLM 50 engine can be converted to watercooled by installing the clutchcover with built in waterpump, from any one of the watercooled models mentioned above. Then it is just a matter of swapping the aircooled cilinder and head for those of a watercooled version.Do pay attention to the fact there are 2 diameters of kickstarter axles used, so make sure to get the right one. VHM makes a CNC head for the watercooled 50cc and 80 cc models, so you can use custom inserts and have them made to your own specifications. When installing any other cilinder than the stock one on the TLM50 be aware that there is a huge variation of port durations between all different cilinders. They range from 1.4kw @ 5000 rpm up to 5.8kw@ 10.000 rpm depending on model and country it was made for so most won't be suitable for any trial work because the torque is either lower than TLM 50 spec, or at a way to high rpm. The easiest way to get way more torque and power than the stock TLM50 is to get a used 80cc watercooled engine, use a german GE3G cylinder (this has the lowest port timing), 18mm manifold and a genuine HM183 18mm carburettor (not a chinese copy). take out the gearbox, and install your TLM50 gearbox instead. Edited August 24, 2023 by snailspeed Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.