lineaway Posted December 4, 2014 Report Share Posted December 4, 2014 Not even all of them. Quote Link to comment Share on other sites More sharing options...
shedracer Posted December 4, 2014 Report Share Posted December 4, 2014 Lineaway, I'd say you've got a serious addiction there mate. ;-) Quote Link to comment Share on other sites More sharing options...
lineaway Posted December 4, 2014 Report Share Posted December 4, 2014 Top ends don't last my ass. Mine has literally thousands of hours on it, and still runs very strong. The PO rode it pretty hard, and I've not been too kind to it either. Regular oil & filter changes, and keep and eye on the valve adjustment (although mine has not slipped out of adjustment....ever). As others have stated, it's a Honda. Love it a little, and it will love you long time! BTW mine is an '05, ridden, worn, and bashed here in the wild, wild west. You will have to excuse Brewtus, his mind is a little warped. He set this canyon last year for our vintage Experts. (He`s a committed Honda/Montesa nut.) 1 Quote Link to comment Share on other sites More sharing options...
brewtus Posted December 4, 2014 Report Share Posted December 4, 2014 Not even all of them. Been rooting through some "Brown" trash I see.... You will have to excuse Brewtus, his mind is a little warped. He set this canyon last year for our vintage Experts. (He`s a committed Honda/Montesa nut.) Damn straight I am!! As I recall, you were the only Vintage Expert to ride that section. The rest poooosed out. 700 hours on a 4RT top end? Pffft! Nothin!! Barely broken in. Mine had that by the time I got it in 2008. 1 Quote Link to comment Share on other sites More sharing options...
2stroke4stroke Posted December 4, 2014 Report Share Posted December 4, 2014 I've only ridden a 4RT once, at a test day, so have no experience but the most impressive thing about them for me is the vast amount of nothing their riders have to do whilst passing time in the parc ferme each morning at the Scottish. It's decades since Honda had a bad reputation for top ends and I would be very surprised if any real work was ever required to one that had been given regular oil changes and used in trials that did not require revving to valve bounce before popping the clutch. 1 Quote Link to comment Share on other sites More sharing options...
jrsunt Posted December 4, 2014 Report Share Posted December 4, 2014 Wow lineaway, how many years worth of barrels is that? What else do you put in while you have it stripped? Quote Link to comment Share on other sites More sharing options...
jj65 Posted December 4, 2014 Report Share Posted December 4, 2014 I know of 11 4rts that have had varied life's by owners ranging from novice to expert and none have needed top end rebuilds, ever. Some, like I said before, have been used twice a week for years. If your having to rebuild top ends, it must be something to do with either, fuel, oil or ?, but it ain't a Honda issue. 2 Quote Link to comment Share on other sites More sharing options...
tail Posted December 4, 2014 Report Share Posted December 4, 2014 You will have to excuse Brewtus, his mind is a little warped. He set this canyon last year for our vintage Experts. (He`s a committed Honda/Montesa nut.) Lineway, what have you got on the end of your exhaust??? Quote Link to comment Share on other sites More sharing options...
jj65 Posted December 5, 2014 Report Share Posted December 5, 2014 Lineway, what have you got on the end of your exhaust??? A spark arrester, as required in some states in the US. Quote Link to comment Share on other sites More sharing options...
brewtus Posted December 5, 2014 Report Share Posted December 5, 2014 (edited) A spark arrester, as required in some states in the US. Make that ALL states in the U.S. when riding on "public" lands. A complete and utter horses*it "solution" to an unwarranted and unproven "problem" created by the bunnyhuggin', idiototic, and unregulated EPA to prevent wildfires that were never, ever started by an internal combustion driven vehicled, blown-out-of-the-tailpipe exhaust emitting "spark". I may have a strong opinion about this. Edited December 5, 2014 by brewtus 3 Quote Link to comment Share on other sites More sharing options...
lineaway Posted December 5, 2014 Report Share Posted December 5, 2014 (edited) Never said that was one bike or several. Just said they don`t last forever. Thinking about it, you boys don`t even have sand. Rarely do you ride in a cloud of dust, We seldom ride when it`s wet. Myself, I cannot remember the last cylinder I bought on a trials bike. Never in 42 years. At least on my personal bike! But I have blown up a few other Honda`s! Edited December 5, 2014 by lineaway Quote Link to comment Share on other sites More sharing options...
stkman Posted December 11, 2014 Report Share Posted December 11, 2014 I have heard from a very reliable source that there is a Cota in New Zealand that has 700 hrs on motor. A rebuild parts order was supplied for it but the parts still sit in the cupboard! Mags Quote Link to comment Share on other sites More sharing options...
stkman Posted December 11, 2014 Report Share Posted December 11, 2014 That would be mine although is at 1100 hours now. Did piston, rings and valve seals at 700 hours - paid to do it, $600 all up. Am OK with less than $1 per hour. 2 Quote Link to comment Share on other sites More sharing options...
mags Posted December 11, 2014 Report Share Posted December 11, 2014 G'day Stkman, So I didnt have it quite right? Components changed at 700 hrs... not still in cupboard. I have 25 hrs on my Cota so have a bit to go! What signalled the new stuff? Did you do a compression test and it was dropping? Leak down test? Where the valve ground and seats recut? Its a great testament to Honda trials motor running 700 hrs on original topend! And...1100 now on the rest. Mags Quote Link to comment Share on other sites More sharing options...
b40rt Posted December 11, 2014 Report Share Posted December 11, 2014 Does a "leak down test" replicate compression on a running motor ? Quote Link to comment Share on other sites More sharing options...
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