• Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Suzuki RM125 won't idle

Thought about that, the stator is aligned with the mark on the crankcase so should be good.
However I'm not sure the crank is an OEM one, could be after-market. Shouldn't be a problem but I've heard stories were the fww key was slightly off.

I'm going to try bigger pilot jets, just to try as I'm thinking it needs leaner ones. Have to try something right. Very confusing.
 
Problem is I don't know what the height must be. Very hard to get information of Suzuki, can't even find an owner's manual.
 
Roll piston up to top dead center than kinda look at your mark on flywheel and magneto to see if you are kinda close.
 
Will do!

I had an epiphany, when the pet cock was closed it began to idle and increasingly higher which led me to believe the float height is to high.
I set the float to 7mm as the following picture on this page suggested, which is rather high, per Suzuki instruction it should be 8,7mm to 10mm.
So I'm going to set it at 9mm and try AGAIN.
 
Really hard to measure with a vernier caliper (parallax), I'm not sure it's set correctly. However noticed that the tap that touches the metering pin of the floats is a bit worn. So I had to bend it quite a bit further then the picture shows to get it near the 9mm.
Anyway installed the 37,5 again, and got it to idle when the idle screw is turned in full (shouldn't be like that). I'm waiting for a 40 pilot jet to be delivered.
 
Problem has been found, low on compression.
It suddenly got really bad, could rev it to the moon and but hardly did move (sand track).
Pulled the cylinder and noticed there was a piece off ring missing (about 2mm), also the ring was worn as I could clearly see light between cylinder wall and ring.

Anyway decided to send the cylinder in to get a new plating, new top end and hopefully that's the end of it.
 
It ran yes, but didn't produce any power. I'm hoping once I get it replated in a week or so it does perform (it really should shouldn't it).
 
Back
Top