RM 250 rebuild.

[Lion]

I have torn the topend down on my rm250. Does anyone know where I can get the piston circlip and bearing from online? There are no suzuki dealerships in my area.

[barty5]

phone them pay by c/card and get them to couirer it to you or send them a chq i/net banking easy

[Lion]

ok thanks will give that a go.

[cheese]

Hey Lion, there should be the top end bearings and circlips in that box I gave you. If they aren't there let me know and I'll check if they are still sitting in my garage. I'm pretty sure I gave you all the bits I had though.

Was there a pool of oil in the bottom of the crank? Make sure it's not coming through the crank gasket.

A good Suzki dealer near you is in helensville. I think that the are called Bike sport? Anyway talk to Mathew. Or call total motox 4122153 they are cheap for parts.

[Lion]

Hey...Found the circlips and bearing..should of checked in the bottom of the box lol. Nah there was no oil in the crank. I got it all back together, but I found the real problem. There is little to no spark. I am going to try a new plug and lead tomorow after school.

[cheese]

Make suer you get a 7 range one- it sound like its too hot but it is teh proper one. It has a new spark plug cap on it. A new lead might help.

[Lion]

ok thanks for that.

[chop]

Try Mr motorcycles theyll do over the phone credit card sales if you ask nicely!

[Lion]

Ok I fixed the spark issue. There was a broken plug lead so I robbed one off the lawnmower. There is a healthy blue spark. Now I am getting it to fire for about 15 seconds, but dies after that. I am thinking the crank seal is fucked as thats about the only thing I havent fixed.

Hey cheese, did the RM ever run since it came back from the bike shop? Maybe the crank bearing seal isn't in properly. I might just replace both crank seals.

[Lion]

Thanks for all the help everyone.

[cheese]

The crank seal has just been done, so it should be fine.

I'd say it's coming out the gasket that runs between the cases.

[Lion]

Ok. I am going to do a leak down test tommorow. Should my powervalves spit out oil when I kick the bike over? I pulled the powervalve cover off, and it is a oily mess inside there. Should I disassemble and clean them up?

[cheese]

Did you use teh old or teh new cylinder? There is meant to be oil in there , but I think that it needs a clean out. What it really needs is a good run.

[Lion]

I used the one that was on the bike when you sold it to me. Was the spare in better condition? The one that was on the bike looked fine.

Ok, so the leak down test showed that there is no leaks in the motor at all. I cleaned the carb up, and it ran for around 15 seconds, but was stuttering. I reset the air screw and idle to factory settings. I think the float valve is fucked. It is also wet fouling the plugs.
Any ideas?

cheers.

[cheese]

Keep running it a few times over and hopefully it will come right.

The cylinder on the bike was ok, but the spare was a new one I just got from the states and was a fair bit better.

I'd clean all teh oil out of the power valves and get it going on a nice hot run.