ChinaRiders Forums - View Single Post - Gio X31 build-up thread

goofyexponent · 11-30-2011, 05:55 AM

When I first stuck the 18 tooth sprocket in there and held the cover up by hanbd I heard metal on metal....GREAT!

But after I pulled the cover back off I seen a little dirt in there...I cleaned it out with a wire brush and it went away. Provided I keep the chain adjusted JUST right it JUST clears. 17 tooth would be a much better fit though.

I am not 100% certain on the bore size. I have read places that it is 65.5MM, others claim it to be 69MM and a few other sites range it anywheres in between. I can find ALL kinds of parts for smaller engines, but hardly any kits for the 250 engines.

I am not 100% on it, but I think the car was a 1996. She was a big old boat that's for sure! I had to haul it up highway 103 through the hilly area along the east coast, then down the 107 to the end of that....what a long haul!

11-30-2011, 05:55 AM	#10
goofyexponent Join Date: Jul 2011 Location: Halifax, N.S. Posts: 145	When I first stuck the 18 tooth sprocket in there and held the cover up by hanbd I heard metal on metal....GREAT! But after I pulled the cover back off I seen a little dirt in there...I cleaned it out with a wire brush and it went away. Provided I keep the chain adjusted JUST right it JUST clears. 17 tooth would be a much better fit though. I am not 100% certain on the bore size. I have read places that it is 65.5MM, others claim it to be 69MM and a few other sites range it anywheres in between. I can find ALL kinds of parts for smaller engines, but hardly any kits for the 250 engines. I am not 100% on it, but I think the car was a 1996. She was a big old boat that's for sure! I had to haul it up highway 103 through the hilly area along the east coast, then down the 107 to the end of that....what a long haul! __________________ Gio X31 Paid $440 for the bike new in the crate! Currently a modified, high compression, head turning MONSTER!
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