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Hi all, I am aware that running a straight pipe with no expansion chamber isn't ideal due to the fact that the exhaust pushes some of the intake...
Is the piston fitted the correct way round? If not the ring might be getting jammed in the exhaust port - im guessing you checked everything by...
Which one would be the best for top end? Power won't be an issue, just need to make sure that I can maximise all the power it will have etc.
You taken the variator restrictor collar out?
Probably best to check stuff like the carb being clean, the fuel filter changed, the belts in good condition etc first
The space between the rocker arm and the valve needs to be a certain clearance, if its too far out the valves won't open fully - less performance,...
It might be that large thumb screw on the top of the carb, info found here:...
I also read somewhere that a bit like the exhaust, the air box is also a tuned size for when the reeds close, when they close fuel is the pushed...
If its a 4 stroke have you checked the tappet clearances etc and that the cam is correctly set - ie not 1 tooth out
Hi all, Just found some crazy footage of some 50cc bikes going rather fast due to the riding position: [media] Then I rememeber that its...
The engine I am getting for the project currently has no carb attached so will be going with an upgraded option anyway and set the jetting to suit.
Hi all, I have been researching into parts etc for my zip 50 engine, I found some useful PDFs off a Vespa forum with regards to the ET2 engine,...
It won't be running a standard carb anyway, are there oil pump removal kits?
Hi all, Im basically brand new to scooters and especially 2 strokes, my mini bikes take 2 stroke oil as premix with the fuel, however I have...
Thats the perfect answer I was looking for, I kinda figured that the cylinders would be interchangable, I think I will run with the air cooled...
Ah ok gotcha, so the CVT basically gives you the acceleration and around town responsivness until it is maxxed out? When I saw there were...
Its due to the heat cycle on the metal, it happens with exhaust as well, the bearings must have got very hot though!
Hi all, My project engine is a Zip 50 2 stroke air cooled engine, its going to be pretty basic and in stock form I think it puts out around...
Hi all, I am just researching my drag bike project a bit more, I have read the thread about why scooters can't go 90/100mph:...
You can see a standard full cycle crank for my Blata B1 bike here: [IMG]
