@Glynn123 You said in my other post about me porting your cylinder, I advise you to send me the head aswell to get it machined to spec and derestrict it, as for rings, can't beat yamaha original ones for stock yamaha piston.

It'll be a 3MB cylinder. You want the 3MB head to go with it. 3BN heads are restrictive.

@Irongamer727 I rode a hornet 600 and it's pretty hard stock.

@britshgigolo make sure that you get the right width bearings as the original are narrower than the typical ones for the DT's diameter

@Irongamer727 that's really bad! im going to take everyone else advice and get a 4FU or 3MB cylinder instead with a aftermarket pipe and carb

@Calum isn't there a metal spacer as well? They can wear too if fitted and leak around the seal

@DTR-NSR yes they are narrower. Found out the hard way years ago when I couldn't get my cases back together......

@Bananper Get yourself one of these bud, give it a good swish around the bottom end and hopefully you will pick up any loose fragments; https://www.ebay.co.uk/itm/Flexible-Shaft-Bendable-Magnetic-Pick-Up-Tool-With-LED-Light-And-Strong-Magnet/391962870896?epid=15017009964&hash=item5b42cec470:g:L00AAOSwR0JUO~Ya:rk:72:pf:0 Also change your oil 3-4 times within the first month after the engine is rebuilt, just to flush out any remaining debris.

@NINJA Thanks, I have to get the A1 licence now :face_with_tears_of_joy: But the summer will be definitely fun!

Yeah, most use 2% as a rule of thumb I saw a chart on the auto-pump back in the days, as I recall it pumped out 3-4% af WOT, and way less just idling or at low throttle operations. Kinda shows you the beaty of the auto-pump. Some info here: http://www.dansmc.com/2_stroke_oilpump.htm

@Irongamer727 Twas what ever was in Motorworld at the time and cheap. And has always worked fine for me.

@Louis-James said in What clutch for a WR200 conversion?: The ebc heavy duty clutch. Use bandit 400 clutch springs

@jakeyboy See here; http://www.dt125.cz/download/Service_Manual-DT125R.pdf

@declan thanks for clearing that up

@DTR-NSR Yeah true, early clutch covers have different oil pump housings.

@HondaLover Yeah try giving me a photo of the pump, not the cover. I actually don't know how to adjust the early type pumps. The newer types you can just adjust a threaded bar. I had an early type pump just inject way way too much oil. Never figured out how to fix it, just deleted it in the end.

@NINJA Hey, that's looking very tidy!

Might sound silly but you are using a genuine head gasket or an Athena one yes?

@Calum I only posted that link as it was a complete kit, individual parts may be sourced for less cash in total? I just wasn't sure what/if he had any parts already???