Thread: Big Bore Kit

Hi I'm new to this site and was wondering if anybody can help me out on choosing a big bore kit, for my 1970 Honda CT70? I'm looking for a good kit, also would you recommend a complete kit with carb and new head? Thanks for any information that you could give me. Dave-396

I have the TB 88 kit with race head, it's a very very good kit. Pretty good power increase from stock, and high quality

Thanks. can you tell me who sell"s the TB 88 kit. Thanks Dave-396

Trailbikes sells lots of big bore kits. Definitely, buy the entire kit and make sure you also order the "high volume" oil pump that they offer, good insurance. I would suggest the 117cc TB kit.

Yea, sorry. TB is trailbikes.

I wish I would have got the stroker crank. At the time I just didn't want to bore anything and I didn't have the time.

I think the next step for me is a nice engine with a 127 kit I think

I have the TB 88 kit with race head and cam..works great on my 4 speed 2003 Jap Monkey!! the only thing now is my clutch is slipping bad so i ordered the TB clutch kit

Originally Posted by HymieP

Trailbikes sells lots of big bore kits. Definitely, buy the entire kit and make sure you also order the "high volume" oil pump that they offer, good insurance. I would suggest the 117cc TB kit.

Pretty strong runners, I hear

I have over 20 TB 88 race head kits in stock!

I would like to get a bit more speed from my CT70H. I am not looking for huge gain but would like to get a little more power. My bike is all original right now so i feel i want to keep it as much together as i can. How big of a kit can i put on it and still use the stock carb and air cleaner? I would like to keep the stock exaust also. Can i add some cam to it and some head porting?

none