Trialscentral Forum

Hi all, Anyone out there riding a 26 factory Sincro 250. Just wondering how they run in comparison to the superseded evo. My bike seems very rich and gassed up on the first part of throttle, cleans up nicely on quarter throttle all the way up but very fluffy down low. Leaned the pilot circuit right out on mixture screw but still not as clean as I’d like. Anyone else finding the same

Hi all, Anyone out there riding a 26 factory Sincro 250. Just wondering how they run in comparison to the superseded evo. My bike seems very rich and gassed up on the first part of throttle, cleans up nicely on quarter throttle all the way up but very fluffy down low. Leaned the pilot circuit right out on mixture screw but still not as clean as I’d like. Anyone else finding the same

Hi all, newbie here from South of England just starting to rebuild a honda tlm50 so may be asking for advice

Hi all, newbie here from South of England just starting to rebuild a honda tlm50 so may be asking for advice

Hi guys I’m looking for chest/back body protection for trials. trying to get a jist of what my fellow riders are using and what they think of them Some look bulky and others look to bloody flimsy and they’re not cheap Tia!

Hi guys I’m looking for chest/back body protection for trials. trying to get a jist of what my fellow riders are using and what they think of them Some look bulky and others look to bloody flimsy and they’re not cheap Tia!

Thought I’d post here rather than the beta specific forum hoping for better exposure / someone who has knowledge on the subject. recently purchased a 26 250 Sincro factory. Noticed the bike seemed rich off the bottom particularly rolling off a bank etc first pick up on throttle motor really gassed up doesn’t clear easily. Best describe it like an SWM or bultaco from 80’s, actually sounds like that on the ear. Immediately thought of going to a 45 pilot jet to clean it up, worked well on my last evo but does make the transition onto the slide slightly weak so didn’t bother. Removed the fly wheel weight which helped and and fitted the extra fast throttle tube used on the TRSGOLD thinking I would almost bypass that problem part of the revs. It’s better but not perfect. Beta uk said a thinner base gasket helps and I’ve also been told a MP fabricated header helps low rpm response? Any Sincro owners experienced this or anyone know of someone that has fitted an aftermarket pipe etc or how they have overcome the problem? Any advice would be greatly appreciated. Thank you in advance.

Thought I’d post here rather than the beta specific forum hoping for better exposure / someone who has knowledge on the subject. recently purchased a 26 250 Sincro factory. Noticed the bike seemed rich off the bottom particularly rolling off a bank etc first pick up on throttle motor really gassed up doesn’t clear easily. Best describe it like an SWM or bultaco from 80’s, actually sounds like that on the ear. Immediately thought of going to a 45 pilot jet to clean it up, worked well on my last evo but does make the transition onto the slide slightly weak so didn’t bother. Removed the fly wheel weight which helped and and fitted the extra fast throttle tube used on the TRSGOLD thinking I would almost bypass that problem part of the revs. It’s better but not perfect. Beta uk said a thinner base gasket helps and I’ve also been told a MP fabricated header helps low rpm response? Any Sincro owners experienced this or anyone know of someone that has fitted an aftermarket pipe etc or how they have overcome the problem? Any advice would be greatly appreciated. Thank you in advance.

Good Day , I have a 350cc Merlin Cagiva which has pretty much overnight developed an engine issue. It will now not fully rev. The engine sounds muffled when revved, like if the exhaust silencer was blocked ( which it is not). I have checked the carb, cleaned the jets, tried different jets and even tried a new carb. This did not solve the issue. I checked the coil and tried a new coil. This did not solve the problem. I checked the stator and tried various advance and retard positions. This did not solve the issue. For my sanity, can anyone explain to me how the CDI works? The engine when was running fine, the stator was pretty much on TDC. Does the CDI then deal with the timing of the spark when the engine revs are increased. Not having an useful specs for the engine, I assume that TDC is correct. Whilst taking the flywheel on and off, I did detect some movement in the main shaft. I doubt if the main bearings have ever been changed! If the bearings are faulty and subsequently the main seals may be faulty, could this possible be the source of the problem ( taking in air or pushing out fuel ). The engine is not smoking excessively, but maybe that is due to bearing/seal failure only being on the flywheel side. I have approached Rex's Speedshop for advice, but before I part with a small fortune on a new ignition system, I thought I would ask you knowledgeable guys for advice. Kind Regards Bruce

Good Day , I have a 350cc Merlin Cagiva which has pretty much overnight developed an engine issue. It will now not fully rev. The engine sounds muffled when revved, like if the exhaust silencer was blocked ( which it is not). I have checked the carb, cleaned the jets, tried different jets and even tried a new carb. This did not solve the issue. I checked the coil and tried a new coil. This did not solve the problem. I checked the stator and tried various advance and retard positions. This did not solve the issue. For my sanity, can anyone explain to me how the CDI works? The engine when was running fine, the stator was pretty much on TDC. Does the CDI then deal with the timing of the spark when the engine revs are increased. Not having an useful specs for the engine, I assume that TDC is correct. Whilst taking the flywheel on and off, I did detect some movement in the main shaft. I doubt if the main bearings have ever been changed! If the bearings are faulty and subsequently the main seals may be faulty, could this possible be the source of the problem ( taking in air or pushing out fuel ). The engine is not smoking excessively, but maybe that is due to bearing/seal failure only being on the flywheel side. I have approached Rex's Speedshop for advice, but before I part with a small fortune on a new ignition system, I thought I would ask you knowledgeable guys for advice. Kind Regards Bruce

Has anyone tried an MP titanium header on a new synchro. I’m looking to get a wee bit more bottom end out of my new 250 factory Sincro, have removed the FWW which has helped but been told the custom header improves the bottom end and sounds better too, anyone on here had any experience with it or know of someone who has?

Has anyone tried an MP titanium header on a new synchro. I’m looking to get a wee bit more bottom end out of my new 250 factory Sincro, have removed the FWW which has helped but been told the custom header improves the bottom end and sounds better too, anyone on here had any experience with it or know of someone who has?