78ltd 1000..wiseco

hello again...have a 78 ltd1000...just installed drop-in 1015 wiseco kit...fresh cylinder hone...valve stem seals and the like...guides checked out well...fresh valve lap..cometic gaskets..sanded my intake runners smooth..dyna-s ign. accel super coils and wires..stage three dyno-jet kit..valves adjusted...carbs sycned...have about 200miles on break in...clymer says give it 500 miles before interstate use...was very careful for first 50 miles...and still pretty ginger with her after that...but have taken her on interstate for quick shots...how careful should i be...info appreciated..thanx..

Just curious as to why You would go through all that to replace the factory 1015 pistons with the same size Wisecos?
How many miles were on the old pistons,and why did You replace them in the first place?...like I said...just curious,because that's probably the first time I've heard of Someone doing that...

40,000 on old ones...and excellent question...should have got the goddamm bigbore for same price...but anyway...#3 cylinder compression was down buy almost 30 points...did the oil thing and all...but have heard that boring causes in-board cylinders too wear more rapidly...i do drive it daily..

...a;so still bumped my compression over 2 points..

break it in the way its going to be driven,id say youre due for an oil change after first 50 miles. goodluck,happy wrenching!

thanx for the ifo..from your list of bikes i'd take your word...like i've said haven't really gotten past maybe half throttle...but it seems to run like a different bike...really huals ass...and exhaust note is noticably louder..

Well that would make sense...if You're using it on a daily basis.
I would have thought that with 40k on the clock,that the cylinders would HAVE to be bored,and bigger pistons to go in.
Now as far as break-in goes...I know that there are literally 100's of different opinions,but...(here's one of Mine)...You say that You haven't had it past half throttle?...I think You should be more concerned with Your R.P.M.'s, more-so than where You throttle is positioned.Don't be afraid to give it a pull...just stay away from the red-zone.Let it work through some torgue ranges,and then just let off when Your revs pick up.Some would say You're ok around 6k(or less),and Others would say You're ok at 9k.
When I first took out My bike after the 1105 kit went in...I didn't "BABY" it,but I also didn't really push it...I played with the new feeling of the new cams(more torque) and just stayed away from the red.
"I" would say...don't be afraid to give it a good,strong pull,but just let off when it starts to feel good,LOL...and then give it ANOTHER good pull...don't be scared,Bud

Generally, when rebuilding a bike, I use the original pistons and put in new rings after honing the bores. I used to pay a lot of attention to OEM recommendations for new bike break in... you know, vary speed and keep the bike under a certain speed. I have found from personal experience that it doesn't seem to matter a lick if you keep the speed down... After the first few miles, if nothing breaks, ride it like you stole it! I DO think it helps to vary engine speeds A LOT... The rings seem to seat better and faster by not babying an older bike.

As far as your choosing the 1015cc kit to go into the store bores, that is fine IF you measured the cylinder bore to piston clearance and it was within spec. The MAIN reason for going oversize is that this clearance becomes too great. Most folks also forget when going oversize, to add in the cost of boring the cylinders which can be fairly expensive, depending on area... that makes the question is $200 worth 60cc displacement (1075cc kit)? I dunno... guess it depends on your performance goals but I like stock size bores to keep liners as thick as possible and I like stock type compression to keep regular gas on my menu!