Sorry Matt for not making it clear earlier about my detent arm. I thought mentioning about polishing the detent bearing might have given you a clue as the original detent arm only comes with only a roller. IÂ’m ridding with MT09 group and their bike comes with detent arm with bearing and that...
Will be putting back the parts tomorrow. It just occured to me whether the mod I did earlier with the detern spring that causes the wear n tear. About 2000 km ago, I changed the metal roller of the detent arm to micro bearing and changed the 2.8mm spring to 3.0mm. The design is the same as...
Managed to open up the clutch side and this is what I found. It seem the shift shaft CPL 90234005033 has worn out at where it suppose to shift the shift drum location (detent star) 90134015000. Looks like upshift is on the tight side to create this wear n tear or a material defect. Ordered the...
As I'm usually riding my bike mostly from 7,000 to 10,000 rpm in all gears, and my peak TQ is 3.6 kg-m at 7,060 rpm, I'm thinking of moving the power band highier. Anyway, I have planned to regrind my cam but before I do so would like to try this out to see what I can get. My plan is to retard...
Managed to open up the clutch side and this is what I found. It seem the shift shaft CPL 90234005033 has worn out at where it suppose to shift the shift drum location (detent star) 90134015000. Looks like upshift is on the tight side to create this wear n tear or a material defect. Ordered the...
Rechecked and realigned all the gear shift link and shaft link arm but the problem is still there eventhough i tried to upshift using clutch. 4th gear is the worst as can't upshift anything above 6k rpm. I believe this is caused by my 2 idiots friend. First one took my bike for a spin while I...
Thanks Isaac for reminding me that. I have aftermarket rearset and has not touch it since adding quickshifter 8 months ago. Will check out the shift lever and shift rod adjustment for any loose movement before going for the big job of stripping the gearbox. The problem I,m not able to engage...
Hi, I'm having difficulty in engaging gear during WOT . I'm not able to upshift when my rpm is above 9k. Anyone experienced this issue before? I thought it might be the engine oil (Motorex about 2k km) and i just changed it to Motul 300V 15W50 but the problem is still there. Thanks.
Hi guys, I,m interested in going for cnc head porting with berillyium copper valve seat. What is the biggest valve size I can put in for our rc390 head? Will the ovesize valve inprove performance? Currently, I,m getting 42.14 horses and 3.6 kg-m torque on wheel (haven't done the open air box...
I’m from Malaysia and riding a 2016 RC390. I always dream of owning and riding a KTM Moto3 bike but unfortunately it is beyond my means. This is the closest I can get with my RC390