'Good things come to those who wait'
Bollocks, get of your arse and go get it
Hey fellow pig owners,
Any tips for changing rings, bike has now clocked up 36000km and developing a thirst for the black stuff. Any tips and or suggestions. I intend replacing rings and gudgeon pin and checking valves,piston and barrell for scouring anything else worth replacing while I'm in there??
Cheers in advance Matt
If you're not living on the edge you're taking up to much room!
Life begins where your comfort zone ends!
My no 1 piece of advise is don't drop a gudgeon circlip into the gearboxStuff a rag in around the conrod before you remove the piston! Let's just say that my 91 XR250 is gonna have a mint engine and gearbox by the time I get it back together assuming I don't cock it up
Top end work is pretty easy but I'd be lapping in the valves and replacing the valve guide seals while there. I'd also measuring the piston and bore and checking if it's time for a new piston too.
Your welcome to come and have a look at a 250's motor in bits for inspiration.
Cheers R
"The ultimate result of shielding men from the effects of folly is to fill the world with fools." - Herbert Spencer, English Philosopher (1820-1903)
a KB mechanic helped me out with my engine makeover so i cant really over advise except if you need to helicoil the sump bolt DONT lose the tag in the sump![]()
'Good things come to those who wait'
Bollocks, get of your arse and go get it
[QUOTE=cooneyr;1129861814]My no 1 piece of advise is don't drop a gudgeon circlip into the gearboxStuff a rag in around the conrod before you remove the piston! Let's just say that my 91 XR250 is gonna have a mint engine and gearbox by the time I get it back together assuming I don't cock it up
Top end work is pretty easy but I'd be lapping in the valves and replacing the valve guide seals while there. I'd also measuring the piston and bore and checking if it's time for a new piston too.
Cheers Ryan,
Just awaiting a Clymer manual to arrive before I break into the motor, wanted to check what piston measurements were before ordering anything in case it is still within spec
I'm a bit of a novice at mechanics but hey there's only one way to learn. Luckily I have an engineer next door, calling Alf, come in Alf!
Want that engine nice and tight for the Dusty Butt!
If you're not living on the edge you're taking up to much room!
Life begins where your comfort zone ends!
[QUOTE=mattsdakar;1129862820Just awaiting a Clymer manual to arrive before I break into the motor, wanted to check what piston measurements were before ordering anything in case it is still within spec
[/QUOTE]
Matt - heres an online manual while you wait for yours to arrive
http://xr650r.barbershack.com/XR650R...50R_manual.pdf
Cheers Col,
Having problems opening the link but will hopefully work it out!
Rgds
If you're not living on the edge you're taking up to much room!
Life begins where your comfort zone ends!
Hey Matt, before starting talk to Brendan at Honda Country in Ashburton. He is a guru on the 650 and knows what works and doesn't, talk to him they may even have some hot pistons and cams going cheap?
Its harder to lose weight than gain horsepower.
Got my Clymer manual a week after ordering..was approx $60...not bad
Let the f*%k-ups begin!!!
If you're not living on the edge you're taking up to much room!
Life begins where your comfort zone ends!
better late then never - just found this spreadsheet for the xr gearing
http://www.honda-xr650r.com/honda-xr...earing-to-use/
stock is 14/48 and on the brp site it says aust xrs came out with 15/41 which according to the spreadsheet increases top speed quite a bit
not too sure what to do - im prob going back to the 14/48
the XR6 stock gearing is 14/48 too, but im running a 14/45 and chuck on a 15 for some highway legs, its my compremise between trail and road gearing so it kinda geared for metal![]()
'Good things come to those who wait'
Bollocks, get of your arse and go get it
There are currently 1 users browsing this thread. (0 members and 1 guests)
Bookmarks