48MM Big Bore kit

Jack Owl · Post by **Jack Owl** » Wed May 04, 2016 5:24 pm

Hi, Im new here, and I apologize if this is in the wrong area, I tried to post in tech, but I cannot. I purchased a 48mm Big bore kit from Ebay, but I did not get any instructions with it. I know how to replace a piston and a cylinder, but I understand there is some things included in the instructions, that I need to know, Does anyone have a copy of the instructions?
Thanks! It is a 1986 Honda Spree
Jack

Peteyparado · Post by **Peteyparado** » Wed May 04, 2016 8:08 pm

No instructions bro!!! Try YouTube or google

patthesoundguy · Post by **patthesoundguy** » Wed May 04, 2016 10:39 pm

Spree big bore kit? If yes there totally used to be an instruction sheet that Taz used to include with the big bore kits for spree.
I had a copy, not sure where though. It told what to do for break in and how many ┬¢" holes to drill in the airbox lid for using the stock carb and stock airbox. Check wikiSPREEdia they might be there.

MrJumps · Post by **MrJumps** » Wed May 04, 2016 10:52 pm

I have that sheet somewhere i will scour for it after school im already in bed for tonight, but I am 50/50 that I still have it. It is either in the garage or in my room somehwere. No promise if not im sure taz can messgae you it

Ultraliner · Post by **Ultraliner** » Thu May 05, 2016 2:58 am

Heres the instructions that came with my BBK about 6 weeks ago. Darn good piece of kit too

Credits to Taz

Jack Owl · Post by **Jack Owl** » Thu May 05, 2016 7:10 am

Thank you so much! I spent hours on the internet and could not find these instructions.

MrJumps · Post by **MrJumps** » Thu May 05, 2016 7:58 am

d*** beat me to it :_:

Wheelman-111 · Post by **Wheelman-111** » Thu May 05, 2016 2:57 pm

Greetings:

Running 32:1 plus oil pump = more than double the recommended oil. The bigger cylinders probably won't survive on the pump alone, but shouldn't need more than 100:1 pre-mixed with it. I've broken in plenty of 47, 49, 50 and 51mm bores using 32:1 premix alone. Adding oil causes a leaner fuel/air ratio, hotter combustion chamber. That much oil won't burn off completely and will accumulate as crud in the head and exhaust. I suspect the bores that are broken in according in to these instructions survive in spite of the excess oil, not because of it.

Ultraliner · Post by **Ultraliner** » Sat May 07, 2016 1:51 am

I'm just using 32:1 premix with the oil pump inoperable and everything seems to be fine. Agree that using the oil pump is unnecessary if you use 32:1.

tazland001 · Post by **tazland001** » Tue May 10, 2016 2:03 am

I just saw this post. Those are older directions and I'm sure how they made it in the box. I have since updated the mix ratios. Wheel is right. That is way to rich. Im not sure were my head was when I wrote them. If anyone needs the updated one pm me.

Taz

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48MM Big Bore kit

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