Modern Buddy

So my 2006 blur broke down and needed some major engine repair. I am in the process of rebuilding the engine from the bottom to the top.

2.2 mm stroker crankshaft
58.5m big bore kit
Large head
Racing valves
Hot cam

Photos to come soon. Two questions, it originally came with a 102 jet and with the upgrades I think I need to go at least to a 108 but might need to go to 118. Any suggestions?

Any one have a bead on a cold air intake for the blur 150?

My "Work" area.

Sorry about the Blur (hahahaha, cell phone photos suk), still waiting on the oil pump.

Pretty sweet ride. The upgrades are totally worth doing if you have to rebuild the engine, but they might not be worth it on a functional engine. I still haven't had the guts to open it all the way up, but I am 220 and it is still pulling strong at 60 BSUs. I have put about 50 miles on it and the tach is already hitting 8k without much effort. I get the feeling that this will go pretty fast when I get it broken in.

I put in the 108 jet and it is running a bit rich FYI. I might thin it down a bit, but I would rather run rich than lean at this point. I don't know how much it is going to need at full throttle.

Did my first oil change and she is still running strong. I got her up to a reported 73 mph. Even if it is optimistic, it is still really fast. I am getting my smaller jet tomorrow, I am buying a 105, but it had to be special ordered. This oil change was really early, but I have been riding it harder than I probably should. I bought some Lucas 10w-30 and the Lucas break in oil. I am super impressed with how much smoother it is running with high grade oil. I should have been running this stuff from the start.

By my calculation it is now running a 161.3cc engine with all the upgrades (actual cc, not scooterworks overstated numbers). Not too shabby.

GY6 engine modification downside.

tortoise wrote:GY6 engine modification downside.

YIKES!!!

Ouch!

Looks like my racing go kart engine when it blew. Running 9000 RPM, it blew a hole, the size of a tennis ball, out side of the block.


That does suck!