Recent content by coopernicus

The ATKs are good bikes. My e-start stopped working a while back and it turned out to be just replacing the starter fuse and cleaning up some ground wires. It has been undergoing a complete overhaul for a few years as the main shaft wears a lot if you don't keep an eye on the countershaft...

Had an older Lectron and hated it as it totally flattened the power. Newer one does have some adjustment on Power Jet so that MAY help prevent a seizure during extended street riding. Modified choke circuit with cable: That MAY help but it's a stopgap and not a solution. Richer fuel/oil: That...

It is necessary for the 300 if you have it jetted/tuned for riding trails for which it was intended. Enduros and motocrossers are jetted/tuned/geared for slower but more "sudden" obstacles where we want responsive power. Scooters and 2T street bikes are jetted/tuned/geared to be ridden in a...

I would never do that with either of my 300s. I had to ride my 2014 EC300 for 15 miles of 60 mph highway with a group of others and we kept it at 55-ish and the 2014 had the stock choke lever on the handlebars. I tapped that lever every 5-10 seconds to keep it from seizing. I don't want to...

I recently rode a friends 2004 GG 250 and noticed the same thing and I was trying to figure out why it was like that...If you get yours diagnosed and fixed, please post what you find out to be the issue!

I use my plated 2018 300 (stock gearing) for dual here in Colorado and it works well as long as you keep speeds below 50 mph for any sustained riding (I periodically press kill switch to give it some "richness") and distance of less that 10 miles on pavement. Those are the upper limits in my...

Well, according to Enduro21, the Fantic uses Yamaha transmission and cases so that is not an insignificant part of the motor. The frame is 2005 issue YZ and it looks like the swingarm is the same. Given that Yamaha didn't like the old GG 4 strokes being imported, I was just interested to see...

I'm sure he has awareness to some degree but I just heard this week some second hand information that Cody is working with a local (to Denver) Yamaha shop to develop the YZ 250X into a 300. Maybe Yamaha wants to remain carbureted? That may be one of the reasons why Yamaha is allowing the import...

I just read that CPD is importing Fantic 300s and 250Fs for Fantic USA. Looks like they are just handling the logistics while Fantic USA is handling dealers. Interesting development...

I think there is an equivalent Honda or Kawasaki part...I will try to find the part number for future reference. edit: here's the Kawasaki part number of an essentially equivalent part: 92160-1201

Did you check the carburetor for air leaks? They get worn out over time...

If I remember correctly, the rod used in the legacy GG/Rieju 250 and 300 are the same as mid 90s Honda CR 250 rods. You may be able to find a Honda part easier.

No worries, didn't take it that way! He seems like a good guy who is building his business from the ground up by servicing bikes. I hope it works out for him!

Well, not really that weird...He's from Eastern Europe and has a mobile motorcycle repair business and recently moved into a small shop area in Denver. He's taken on SWM from CPD and I think he got Rieju's situation confused with that. Simple mistake due to a non-native language barrier.

Looks like the dealer got the 2025 6 Days and took it out to Thunder Valley MX track for pictures. He put an ad on Craigslist locally. https://denver.craigslist.org/mcd/d/denver-2025-rieju-mrs300-6days/7824844776.html