Honda-SOHC

SOHC.co.uk Forums => CB750 => Topic started by: 750rideruk on February 06, 2014, 06:01:35 PM

Title: CB750 k1 836cc kit
Post by: 750rideruk on February 06, 2014, 06:01:35 PM: I am looking to rebore my K1 engine and am considering using an 836cc kit from Japan. In the details they state the piston diameter of 65mm. The O/D of the cylinder spigot is only 68mm and I think this may be a bit thin after reboring. Anyone got any experience of using these kits?
Title: CB750 k1 836cc kit
Post by: JamesH on February 06, 2014, 06:51:41 PM: If you check on the US forum plenty on there have used the cruzinimage 836 kit with no major problems I beleive, other than some deburring required from memory. Certainly Hondaman on there has used them and if its good enough for him....
Title: Re: CB750 k1 836cc kit
Post by: Bryanj on February 07, 2014, 07:00:11 AM: Its OK but you need a VERY good reboring firm to do the job as if the liner cracks its totalled
Title: Re: CB750 k1 836cc kit
Post by: JamesH on February 07, 2014, 07:05:43 PM: Bryan I'll be fitting an 836 kit to a project later in the year..know any very good shops for the rebore? Also, do you undertake engine builds yourself?
Title: Re: CB750 k1 836cc kit
Post by: Bryanj on February 07, 2014, 09:52:32 PM: Re builds yes, and I do know a shop if he will take it on but it was £25 per hole plus vat!!! and its a long way to take it out.

I will be at work Sunday night if you want to ring my mobile after about 8pm 07795162623.
Title: Re: CB750 k1 836cc kit
Post by: JamesH on February 08, 2014, 10:23:53 AM: Thanks Bryan - bit tied up sunday night but will drop you a text to arrange a time. It's a 750 k2 rebuild I'm looking at. James
Title: Re: CB750 k1 836cc kit
Post by: Bryanj on February 08, 2014, 01:12:06 PM: No problem mate any day Sunday to Thursday inclusive. I don't get into blasting and repaint by the way!!!