Project "RM"

05svr650 · 03-18-2008, 10:57 AM

A few weeks back I aquired one infamous "RM 250" from another board. Little did I know the history behind the bike and how many times it had to be pushed or towed out of the woods to the truck.

Upon me aquiring the bike it ran good until it got hot, then it had a mind of it's own and wanted to go wide open. Kinda like the float was sticking...Bryan and I adjusted on the power valve spring and thought we had the problem fixed.

One day I was riding it thru the yard and noticed oil on my leg. Upon further inspection I noticed a crack in the exhaust. So I started taking pieces of to check it out. I had the exhaust welded up and I plastic welded the airbox holes while I was in the mood of fixing.

I got it put back together last week. My dad came over and we were playing with the bike. It took a while to get it started because it was flooding itself out. But once it got started it ran for about 10 minutes then the demonic soul came back out and the bike ran wide open on it's own. At this point I turned off the gas and let the bike die. Then when I went to kick start it back, we could hear something rattling in the case. I don't know if something broke or just came loose.

This is where I am now.

Starting next week I am going to start tearing down the bike and so will begin "Project RM" because I am not going to let this bike beat me! Next step will be to purchase a service manual and continuing my internet reading on rebuilding 2 strokes.

I will keep this thread up to date until I have conquered "THE RM".

Any advise is greatly appreciated. I have nothing to loose except a demonic bike and I have knowledge to gain.

Adieu

Trip · 03-18-2008, 11:05 AM

LOL, ghost bike

dReWpY · 03-18-2008, 11:14 AM

the good thing, 2 strokes are super easy to work on and dont have all that many moving internal parts, depending on how many hours are on it since the last rebuild, a new piston, rings, a complete carb rebuild should be a good starting point to pin pointing the problem

Rider · 03-18-2008, 11:23 AM

2 strokes are super easy to work on. It sounds like a carb issue to me. Rebuild the carb, also while you are at it replace the top end(piston, rings, bearing wrist pin and gaskets. Make sure when you remove and replace the cir clips in the piston, put a rag down into the crank case to block it off from anything getting down in the crank case. If you drop a cir clip down in there you're hosed and you will have to split the case to get them out.

vabarber2 · 03-18-2008, 10:15 PM

Have fun. Good Luck.

Trip · 03-19-2008, 12:02 PM

We demand pics btw.

marko138 · 03-24-2008, 11:35 AM

05svr650 · 03-24-2008, 01:55 PM

Aint started yet!

Here's you a picture to keep you occupied until I get started.

marko138 · 03-24-2008, 01:55 PM

Nice retort. Respect.

Rider · 03-24-2008, 01:56 PM

He fits in with this group well.

03-18-2008, 10:57 AM	#1
05svr650 Supporting Vendor Join Date: Feb 2008 Location: Soon to be Temple, TX Moto: wide open throttle Posts: 108	Project "RM" A few weeks back I aquired one infamous "RM 250" from another board. Little did I know the history behind the bike and how many times it had to be pushed or towed out of the woods to the truck. Upon me aquiring the bike it ran good until it got hot, then it had a mind of it's own and wanted to go wide open. Kinda like the float was sticking...Bryan and I adjusted on the power valve spring and thought we had the problem fixed. One day I was riding it thru the yard and noticed oil on my leg. Upon further inspection I noticed a crack in the exhaust. So I started taking pieces of to check it out. I had the exhaust welded up and I plastic welded the airbox holes while I was in the mood of fixing. I got it put back together last week. My dad came over and we were playing with the bike. It took a while to get it started because it was flooding itself out. But once it got started it ran for about 10 minutes then the demonic soul came back out and the bike ran wide open on it's own. At this point I turned off the gas and let the bike die. Then when I went to kick start it back, we could hear something rattling in the case. I don't know if something broke or just came loose. This is where I am now. Starting next week I am going to start tearing down the bike and so will begin "Project RM" because I am not going to let this bike beat me! Next step will be to purchase a service manual and continuing my internet reading on rebuilding 2 strokes. I will keep this thread up to date until I have conquered "THE RM". Any advise is greatly appreciated. I have nothing to loose except a demonic bike and I have knowledge to gain. Adieu __________________ www.JandBcycle.com

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03-18-2008, 11:23 AM	#4
Rider Moto GP Star Join Date: Feb 2008 Posts: 12,156	2 strokes are super easy to work on. It sounds like a carb issue to me. Rebuild the carb, also while you are at it replace the top end(piston, rings, bearing wrist pin and gaskets. Make sure when you remove and replace the cir clips in the piston, put a rag down into the crank case to block it off from anything getting down in the crank case. If you drop a cir clip down in there you're hosed and you will have to split the case to get them out.

03-18-2008, 10:15 PM	#5
vabarber2 ICON FTW!!! Join Date: Feb 2008 Location: VA, but currently in the sand Moto: 00GSXR6 Posts: 1,380	Have fun. Good Luck.

03-24-2008, 01:56 PM	#10
Rider Moto GP Star Join Date: Feb 2008 Posts: 12,156	He fits in with this group well.