Re: Kasea mini 50 not moving with throttle pressed in
My son has a Kasea mini 50 (see my posting "Kasea mini 50 Hop-ups"). Shut the fuel off. I usually lay a piece of carpet down on the floor behind it and stand it up on its back end. Using a 3/8 ratchet, 10" extension, universal joint and a 13/16 spark plug socket, remove the spark plug and inspect. My guess is that it will be fouled out (black and covered with oil). You can go to any motorcycle shop or Walmart and buy a few NGK plugs. The stock plug is a NGK BPR7HS. This is a resistor plug and anyone in the youth world will tell you they suck. Buy a B7HS or a B8HS (the 7 is a hotter plug). I installed a B8HS in mine, but have switched to a B7HS. The mini, stock, has a carb and exhaust restrictor. Although it will run with these in, the plug will foul out very quickly. Removing them , will make the bike fly .... so use your good judgement here. ATV Action February 2003 has done a full write up on the Kasea mini 50. I still havn't gotten it yet, but I heard they report the bike does 20mph (probably removed the restrictors). I've gone further to remove the oil injection and changed the tires out. Does your mini have the same round air cleaner as mine (see attachment on my Hop-ups post)? You can rotate it and it has like 4 holes coming out of it. They have replaced this (see pictures in your owner's manual). I've ordered one, but it's on back order. The one I have does not breathe well and could cause fouling of the plug too, and on top of the restrictors could be even worse. My son's smoked real bad and stunk when it was stock. Without the restrictors and switching to pre-mix it runs super clean now. After you've checked the plug, then we can look into other possibilities, but start here.