Guy who owned the bike before me claimed to rebuild forks and had around 4 hours on bike since. Is this a normal amount of metallic for the fork oil for that much riding? The bike is a 03 cr250r
u/Hopeful_Virus_4619 — 6 days ago
r/Dirtbikes
Rumore Freno Suzuki rmz 250
Salve a tutti, ho da qualche mese acquistato una suzuki rmz 250, ho fatto il cambio pastiglie in autonomia ma forse qualcosa è andato storto. Ora la moto fa questo rumore quando è in movimento. Cosa può essere? Ho visto che la pastiglia ha in po di gioco è quello? come risolvo?
u/ItchyLeading5537 — 9 days ago
Ktm 300 xcw leak down test
I'm having some issues with blurbleing and missing at 1/8-1/4 throttle on my 18 xcw with a 6 hours top end .
I've tried jetting, cleaning, installed 2 diff carbs with the same issues so I ran a leakdown test with 5 psi and found that there was a big air leak at the power valve on both sides I had recently cleaned & replaced the power valve orings with aftermarket ones .
I thought I might have did something wrong or an o ring got pinched etc but everything was correct and the orings were in the right places.
I decided to change the o rings again anyways and there is still a large air leak at the pv o rings. The power valve etc has about 40 hours on it so shouldn't be worn out. I am not %100 sure if this is normal and I need to look elsewhere or what. I have checked the stator and coil and they tested good Any other ideas ?
Update... I may have fixed the issue I installed another set of o rings in the power valve and the pressure test passed with no bubbling at the pv everything was installed correctly but they must have been crappy orings . Got them with a namura kit ( yes I know) , I installed cheaper orings and they seem to have sealed the power valve lol will update if it fixes the issues.
u/doh13 — 12 days ago
broken Cases
I got these engine cases off eBay. After the small crack from the seller turned out to goall the way though the cases on the original ones. then the new case the Listing mentioned a few things (stripped/re-tapped drain plug and some minor stuff), but didn’t say anything about this broken section.
There’s a chunk of the aluminum casting missing right at one of the bolt bosses in the crank/transmission area. The break is pretty jagged. The sealing surface looks intact and the bolt still threads in with a few good threads left. The cases are still connected solidly in the other spots nearby.
I’m not worried about oil leaks — more about structural integrity. Figure if I go a bit lighter on that one bolt and make sure the neighboring ones are properly torqued, it should be okay… but I’d rather get some other opinions before I button it up and run it.
Anyone seen something similar or run cases with this kind of damage? Would you run it as-is, or is this something that needs welded up first? its a 2006 KX450f
u/IndependentMud3844 — 12 days ago
What mufflers can I use on a 1988 kdx 200?
I got this bike a few months ago to do a full rebuild and the last jack ass who had it put the ugliest custom muffler on it. I was originally gonna get the stock muffler but there extremely expensive so why not get a modern one for cheaper that will overall be better. I just need to make right choice then I’ll custom fit it, any recommendations?
u/Forestryfeels — 12 days ago