Search the Community: Showing results for tags 'reliability'.
Found 4 results
flyinggibbon posted a topic in DR-Z 400I'm currently looking at moving with work to Andalucia in Spain, just across the water from Morocco and am looking at building a new DRZ-400 into a Rally bike to take with me. I looked at getting a KTM or Husky or other 450cc, but the maintenance would be a killer, so my intent would be to build a DRZ-400 engine under 450cc which can put out a reliable 50+HP. The only must have's on this beast would be kickstart, a capacity smaller than 450cc to stay in the lightweight class and ability to work in hot n high environments. I'm guessing I'd build it using a set of wide gears? I get that the DR Rally bike will be heavier and I'll have to change a lot of the components like brakes and suspension to make it onto the same playing field as a KTM 450 EXC, but the key for me, is having a bike which means I can actually focus on the riding during a 4/5 day event and self deploy to the event, meaning I can start racking up experience. As well as Morrocan based rallies, I'd be looking at competing in the Rally Albania and Greek rallies and maybe getting off-road in the Sierra Nevada's. Thumper Hive Mind, hit me with your opinions and suggestions on how to achieve this goal.
Hi, im new to this forum. I recently got me an NX650(euro), but i didnt check the bike properly before buying it. Found some faults driving it home. Welded sprocket and noisy 4th gear. 23K miles stock. Might be wrong forum, but its the same engine as xr650r if im not mistaken? This is my first rebuild, and it went somewhat bad. A couple of rounded allen bolts(rubber intake carb), bolt to head broke and rounded a allen when splitting the cases. Damages found so far - timing chain stretched, 4th gear broke, some scratches in cylinder, some scratches in oil pump, 4th gear broke. A lot of carbon build up in combustion chamber, guess oil have been burning. Cam and journal seems good. Rockers also seem good, hard to tell. Many pics, more upon request. Now that its teared down, i need some help with purchase list. I dont know what is smart to change while im rebuilding it. Im building bike for reliability - mainly commuting. Power is always welcome, but rather reliability. List; Poured some engine cleaner in combustion chamber and had it upside down over night. Valves didnt leak - guess they are OK? No need for re-seat? Is it necessary to change timing tensioner? Anymore seals or bearings i should change while im at it? Im guessing 4th gear breakdown is the reason for scratches in cylinder and oil pump. Found some metal parts. Why the exhaust valves have been running hot(white) is oil consumption due to scratches in cylinder? Teardown was "fun", looking forward to rebuild it and paint it. Ive done alot of research online, but feedback before rebuild is MUCH APPRECIATED.
ak47bravo posted a topic in What bike should I buy?Hello all, I know this is a highly debated topic and one that has probably been discussed at great length. I apologize in advance for opening up this can of worms. Unfortunately, when I have done searches both on this forum and google, virtually all the threads I have read are old (2004-2010, maybe 1 thread from 2011'). I have not seen anything (2013-2017) regarding this topic. I think with progression of engineering that reliability on both 2 strokes and 4 strokes on 2014 + bikes is vastly superior of that of 2004-2010 bikes. (maybe I am wrong....) My background: I had a Yamaha RT 100 and TTR 125L back in the day (my only dirt experience). Then ended up with a GSXR 750 after college, then a KTM 690 SMC supermoto, CBR 600 track bike, and then a Husqvarna 701 Supermoto. So I am not new to motorcycles but my knowledge of dirtbikes and dirt riding is pretty limited. Obviously coming from a street bike the maintenance and service intervals are substantially different than a dirtbike. Hell, even my track bike does not require all that much maintenance and I ride the crap out of that (change oil every few track days). I want to get a dirtbike that I can go ride some trails (I will probably just putt around) and occasional try and ride a MX track (I imagine I would be very slow. I road a MX track back with my TTR 125L but that sucked because it had no suspension- amongst other things). So while I do not need race bike power, I would like suspension capable of hitting some MX jumps. Hence why I do not want a trail bike like a TTR 230 or CRF 230. I want something that would be able to actually take some jumps if I get to that point (I at least want to try and progress to that point). My question is: Would a 2 stroke (no older than 2007') be easier/cheaper to maintain than a modern day 4 stroke (2012' +). I have read 2 strokes need a top end rebuilt every 20 hours. Some say 30 hours, and I have heard people not racing run 2 strokes for 60-80 hours without a rebuild. Then they say 4 strokes are full engine rebuilds when they go (and the cost of the actual pistons and rods are significantly higher on the 4 strokes?) I will be riding not nearly as hard as many people on here would. I understand the powerband difference and all of that. I am more concerned with wrench time and cost to ride over anything. P.S. Holy crap, people have their bikes overpriced on craigslist. I am trying to pick up a small bike for my fiance and I am seeing like 2004-2007 TTR 125L's for like $2,000- $2,200..... a 10-13 year old small displacement trail bike???
Alright good news. Had saved up a bunch of money expecting to owe a significant amount for taxes.. Turns out I don't owe nearly as much!! Time to put the money to good use and build a nice performance motor for my drz. I am planning on doing a full 470 kit from ebay (Stage 2 cams, +4mm Crank, 94mm Piston/Jug) Has anybody else done this big of a displacement change? If so how bad will this hurt my reliability? I know it wont be nearly as reliable as stock, obviously.. just wanted to get a few opinions before I jump into ordering everything. Also, if I follow through with it I would be doing the MX39 carb swap. I am running a new Yoshi RS-2 full system, but will swap to MRD if it will make a significant difference. Thank you guys, Brad