To right mate and the satisfaction of many more sweatless top-end overhauls ahead that will bring it's own rewards.Originally Posted by tigertim20
Hardcore Biker
To right mate and the satisfaction of many more sweatless top-end overhauls ahead that will bring it's own rewards.
Scooter boy
start googling.... sounds to me like ur bike needs a lil work. its only a 125 so theres not much you can do to it bar a top and bottom end rebuild but start off by giving her a real good clean, take ur chambers off, take your carb off and start inspecting that piston. Keep an eye on ur valves and watch ur premix these bikes can be fussy when u want too.
ive owned 6 cr125's they go hard for there small displacement.
i know ride a cr250r and a 300exc
2 stroke n wot
mad thou rider
LOL!
you abviously havent read the thread, it doesnt need a little work, it needs to be thrown away, but Im a cheap stubborn cunt.
engine has been pulled apart, and top end done and put back together.
work is ongoing.
Scooter boy
like most two strokes.... get a lumpy 4 batt then. u dont have to do fuck all but sit there and use a waterblaster after every ride
mad thou rider
got the electrics back on the frame today, got the linkages back together, then put the engine back in.
The new bolts I bought were the right size and length and no issues there.
I attacked the bolt that goes through the frame/engine/swingarm that was discussed earlier in this thread with a dremmel, and got it into a usable condition again, and put the swingarm on as well.
I still hadnt hooked up the rod that actuates the powervalves, so I mucked around with that and got it set up right, and put the cover and gasket on with the engine in situ.
Bolted the exhaust manifold back on, and got the radiators back together on the bike, and hooked up all of the hoses etc.
The exhaust was next to go on, then I pulled the carb apart, and restored it to factory settings, before sticking that back on, along with the airbox.
I took the air filter out, and gave it a good wash, it was fucking filthy, let it dry and put it back in.
Topped up the radiator and gearbox oil, and thought, shit, I hope this starts after all this bloody effort!
put the tank on, and gave it a few kicks. after the third kick or so, it fired up, for about two seconds, then died.
I figured this would happen, as I didnt put the new piston and ring in dry, there was some grease to get rid of yet.
Pulled the plug and kicked it over a bunch, then put the new spark plug in.
One kick, and with a RINGANINGANINGANINGANINGA, a cloud of smoke, and the unmistakable smell of two stroke, she was alive and kicking, even idles away by itself - which it didnt do before I started. I left it running a few minutes at idle to fill the garage with that lovely aroma (who needs deoderant eh?) before shutting it off.
as it is, its missing the shock, rear wheel, chain, gear lever, and entire front end, so a ways to go yet, and some parts are still en route, but I did wonder, is there a procedure i should follow immediately following a rebuild on one of these?
Fully qualified Sifter.
Just get it to operating temp blipping the throttle and then let it cool down. Do it twice. Then wring it's fucking neck.
mad thou rider
done. Had to show the wife the progress, so told her to come into the shed and take a look. she'd just got inside the door and I fired it up and gave it a blip. Poor girl nearly had a heart attack, and the old bint from next door was glaring out her window at me - not that she could see me through the cloud of smoke from when it started hehehe.
Now to get the rest together. Purchase wise, I think I still need rear wheel bearings, and a chain and sprockets. could do with some new grips too.
Already have about 8 spare tyres, and a new tube to put in, got wheel bearings for the front, steering head bearings are en route, then I think I can take it out and give it a fang.
mad thou rider
thought I'd do a wee update.
I havent really done much because Ive been sick, and had a few things on.
some extra bearings and bits are on the way, and I bought an hour meter so i can track servicing on it properly with the fresh rebuild.
I had the last exhaust rubber gasket turn up, which I havent yet fitted, but I did remove the shagged tyre off the rear rim. I was going to try and fit the next tyre on it too, but the rim is filthy, and I have run out of degreaser to clean it with.
I have some fork oil too so I can do a fluid change in the forks.
Forum whore
hoefully when you say you washed dried out and put back air filter you just missed out putting in that you oiled it as well wouldnt want to do all this work then have some dirt, dust ans sand make its way through an wreck it all. I always try an use spray on oil filter oil if riding in sand and spray the sides of the airbox as well pain to clean but stops a lot of it getting to your filter.
[SIGPIC][/SIG
mad thou rider
yep, borrowed some from a friend - but its probably going to get a new air filter anyway before it actually gets ridden, the old one os pretty manky!
Hardcore Biker
Shit shame i only just read this thread I have rebuilt a 92 cr125 before they are practiaclly the same bike
Had pretty much the same issues as you im sure i found a manual online somewhere
Cleaning the HPP I used oven cleaner,The bore is def nikasil plated so hopefully they didnt hone it to much that shits expensive to get redone,These puppies wont like reving out till they are nice and warm even so dont expect it to rev out on your shop stand,
Any more Qs just ask
Heres some b4 and after pics
Even on the old ones if you dont race serious and you wanna just go do the odd club day and smoke everyone on a big old 5hundy it great and if you get beaten you have a handful of excuses
Forum whore
yea, can u hone out nikasil at all? I thought u couldn't touch it at all and had to have it replated?
as my rs250 has nikasil bores.
nice job on ur cr looks clean
Hardcore Biker
Yeah i thought the same thing too i def didnt hone mine i left it as it was but surely an engine builder would know this...............OR NOT I do all my own work as im sick of paying "profesionals" for shit jobs
My old cr was fouling plugs like no tommorrow after having a guts full i took it to the local honda shop only for them to tell me it had no compression and needed a top end what i didnt tell them was it just had a brand new top end done I told them to step away from the bike and ill be there in 10mins to pick it up I turned up with a compression tester and performed a test in front of them and got slighty over what the manual states for that bike............They didnt like look to comfortable after that.
Even on the old ones if you dont race serious and you wanna just go do the odd club day and smoke everyone on a big old 5hundy it great and if you get beaten you have a handful of excuses
mad thou rider
yeah there are some cowboys out there. if theres anything I cant do, I have people I trust that I can go to.
fortunately, these things are pretty simple, so no big deal there.
Its getting a bit closer to being done now, be glad when its over and i can start the next project!
Hardcore Biker
A light honing is ok on nikasil bores and is preferable as it helps to retain a fine layer of oil in the criss-crossed pattern.However, yes you cannot re-bore a nikasil lining.yea, can u hone out nikasil at all? I thought u couldn't touch it at all and had to have it replated?
as my rs250 has nikasil bores.
nice job on ur cr looks clean
There are currently 1 users browsing this thread. (0 members and 1 guests)
Posting Permissions
Reply With Quote
Bookmarks