I was hoping i could just put a 110cc cylinder on as i already have one, but it seems no one has done this, do i don't know if the engine could handle so much more power. would it even fit without boring out the block?Welcome to Miniriders,
You can take it out to a 70cc by fitting a 47mm piston, cylinder and head to it from a 70cc or 90cc.
Or fitting a 52.4mm piston, cylinder head will take it out to 88cc
Classic Honda 50's Australia - TB Stock Head, 88cc Bore Kit, 20mm Carb Kit, Cam - 92-13 Models [TBW0930]
You would need another carby if your's cant be jetted to suit, and a better camshaft is recommended too
Classic Honda 50's Australia - 20mm Performance Carb - Fits a variety of Hondas [TBW0125]
Alright, i'll get a coil, lead and cap from a good brand, and get a mikuni 20mm carb, with an uni air filter. I'm not sure i wan't to change the flywheel just yet as it's a bit of a hassle to change, but eventually i'll probably do it.Performance cdis aren't worth the trouble of fitting (especially the cheap) alloy china ones.
They have different timing advance settings, and are made from cheap componants.
Some of them work for a while, others wont work from new, also a lot fail prematurely when you're out riding and can leave you stranded.
You can upgrade the stator flywheel to a better kit, a lighter flywheel helps the engine rev faster, and you can get adjustable digitial timing stator kits like the Daytona 125/ Lifan 150 uses.
TB and OORacing sells a few cdi's too that are better quality.
One of our site sponsors sells them here in australia, give Jaimie a call to discuss what you want, he is very helpfull
Classic Honda 50's Australia
Most of the pit bike cdi's dont have a rev limiter in them, the valves usually bounce before you can get any where near the limit of the cdis' sparking capablity's
But as i mentioned before, they are available at an extra cost.
Performance Ignition coils are available, AWR, Takegawa, Splitfire, Piranha and Ngk make a few.
The quality of the big name coils is a lot better than the generic china made coils, they last a lot longer and can give you a much better spark.
I use the Cheap china performance coils on my bikes and haven't had a problem with them yet.
Performance Racing Ignition Coil 110cc 125cc 140cc PIT Quad Dirt Bike ATV Buggy | eBay
Even just fitting a better spark plug lead can help, i use the Splitfire leads on my bikes and there is a noticable difference in the spark output.
Ngk sell a good quality lead too
Carby wise, something around a 20mm would be the best,
and run a decent foam filter on it too like a Uni Filter, and make sure it's oiled up too.
2 stroke carbs are set up differently inside to mix the fuel air, and generally use bigger jets too
To swap it over to a manual clutch is easy enough.
You'll need the manual clutch kit, manual gear shift shaft, manual clutch cover with arm, pusher/actuator etc, a clutch cable and lever