My '05 SM had it's rod bearing go out at 15,000 miles and scored my cylinder so its time for a rebuild. I already have the engine out and cases split, just getting ready to clean and inspect everything and spend lots of money. Bike as of now has 3x3, full Yosh RS3 Off-Road exhaust, and JD jet kit.
The plan so far is to get:
Hot Rods Crank Assembly Cylinder Works Big Bore Kit Cam Chain MCCT FCR 39 (hey why not) My main question is if I should replace the engine bearings or not. I feel like I should since I have the engine apart and plan not to have it again for a while, but its around $200 for main, transmission, counter balance, etc. I could not find anything about inspecting bearings aside from feeling smoothness. Is there anything that indicates I should replace bearings? Should they be fine? Or dont risk it and replace all since I had metal running through the oil?
Let me know what you think along with any recommendations for the build. I plan on skipping out on the stroker to eliminate challenges with compression and reliability and skip out on cams for the sake of $$$.
What can I expect as challenges to using the bigger fin cylinder from a ATC200X on a TLR200 Reflex engine. I want the extra cooling from the bigger fins.
Am I going to have to also use the ATC 200X head and then use the ATC200X ignition parts? Help me if you have done this by telling me of your experience mating these to a Reflex TLR200.
Nick from England here. First post so go easy on me :-)
i wonder if if anyone can offer views on feasibility of increasing the capacity of a Chinese Suzuki GN125 derived engine beyond the "big bore" limit of 147cc. Following the advice found on this forum I've fitted a Chinese 147cc big bore kit, a VM26 carb and a DR200 cam...actually a Chinese QM200 cam, but I'm told they are the same thing. This is nice, but I would like to increase the capacity further, ideally up to 200cc.
I know the stroke is longer and bore is wider on a 200cc variant so im guessing I would need a DR200 crankshaft, con rod, piston, barrel and head. But, in big handfuls, is this likely to be compatible with the 125 crank case and transmission ?
ive posted here because there are (or were a decade ago) some guys who seemed to know everything about swapping bits between the small two valve Suzuki engines. Whereas other forums tell me I can get major performance increases by changing the air filter and spark plug :-)
Thanks in advance