Purple Haze
Active Member
Play around with the needle height, that really affects part throttle. Mine runs best with the lowest setting (clip in top groove)
It won't affect your bike that much. You must be right on the lean edge. Maybe drill out to .62 or. 63 mm bit . Dude it's been around -10 here the last few days and I've been snowmobiling, mopedding, and chainsawing. All piston ported 2 strokes.
Checked it carefully and everything seems fine, fuel flows when the float is down and flows stops when the float is up. No leaks.Have you checked if your float works recently or your tab may possibly be bent slightly for your needle valve
Good point, even 4 stroke engine kits go for $160 now on eBay, heard they used to be $300+. Maybe I’ll build a 4-stroke next...2-strokes are awesome for power and speed but 4-strokes are much quieter and smoother with a centrifugal clutch as well...with a good bike and mounting along with packing the stock exhaust, it will be super quiet and smooth, great for just cruising around on a nice day without wanting to go fast. 2 stroke when you have that itch for speed and wanna rip!You mentioned the price of engines, they have come down a lot since I bought my first. My first kit was a 48cc grubee kit that cost $171 in December 2010, I had to buy 5 to get that price. Some people don’t like grubee engines but the ones I got have been great, I’m still running that original engine with one rebuild.