yes after got honed....bakaracer wrote:The original rings shouldn't have fit if its that size. That means those rings got shaved to fit and maybe that's why you were having issues with that cylinder. That 50.10mm measurement,was that after you honed it?
Search found 194 matches
- Mon Jan 30, 2012 6:43 am
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
- Sun Jan 29, 2012 8:56 pm
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
So the original piston also measured 50.25mm also? heres the spec's im working with: original piston- 50.02mm w/ 50.25mm rings new piston- 49.94mm w/ 50.00mm rings bore on cylinder- 50.10 ive already had the cylinder slightly honed to clean it up from seiz... its bout 26 degrees out right now seeme...
- Sun Jan 29, 2012 1:26 pm
- Forum: Performance Technical
- Topic: Where can i find polini or malossi exhaust pipe?
- Replies: 25
- Views: 10035
Re: Where can i find polini or malossi exhaust pipe?
here ya go scott, its pretty steep though...
http://www.mopedsplus.net/index.php?dis ... t_id=29903
what about leo vince are them any good?? i know i read a post from wheelman and his broke or something... just another option maybe
http://www.mopedsplus.net/index.php?dis ... t_id=29903
what about leo vince are them any good?? i know i read a post from wheelman and his broke or something... just another option maybe
- Sun Jan 29, 2012 1:21 pm
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
can someone help me out on this usually i just throw my cylinders away... but im starting to get a little collection. i dont have any experience with the whole honing process.. i have a 50mm cylinder i had honed, i put the new piston and rings in and the piston was very sloppy.. the piston gap is .0...
- Sat Jan 28, 2012 1:55 pm
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
i have a old 50mm cylinder that i polished the ports on was thinking of having that honed out to a 51mm piston.. i was thinking to have it done to the actual piston im gonna use... what piston gap should i have?? will the porting be ok?? 50 and 51 both look exactly the same.. besides the big hole in...
- Sat Jan 28, 2012 1:51 pm
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
Greetings: Weights will need to be lighter using a softer Contra spring. I'm using 30-35 grams with my +1200, for example, to run 10K RPM on the tach. Yours will be different. Bakaracer no doubt is correct in saying that port timing dictates the best power RPM. RE-read my earlier caution about the ...
- Sat Jan 28, 2012 11:02 am
- Forum: Performance Technical
- Topic: gas tank mod?
- Replies: 6
- Views: 1961
Re: gas tank mod?
I may have to get me a basket then!!!Mystic wrote: I carry a gallon can in the rear basket
- Sat Jan 28, 2012 10:31 am
- Forum: Performance Technical
- Topic: gas tank mod?
- Replies: 6
- Views: 1961
Re: gas tank mod?
Wow that one is $126 plus shipping.. for that much I'll ride around with a gas can between my legs..
- Sat Jan 28, 2012 10:12 am
- Forum: Performance Technical
- Topic: gas tank mod?
- Replies: 6
- Views: 1961
Re: gas tank mod?
Awesome I'll check it out anyone ever order from there? Its seems really expensiveMystic wrote:webike.japan sells a nice tank that fits in the underseat storage made by koso
- Sat Jan 28, 2012 9:12 am
- Forum: Performance Technical
- Topic: gas tank mod?
- Replies: 6
- Views: 1961
gas tank mod?
Anyone have a good fuel tank mod? I only get 30mpg on my scoot so that's bout the whole tank. Running 100 octane at 32:1 is hard to come by on the road so I'm limited to only 15 mile one way trip. I am using oil tank as a little extra tank but need something bigger... was thinking maybe another elit...
- Sat Jan 28, 2012 8:58 am
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
Minarellies are not the only motors that have those .3 gram or .7gram or odd weights. The 16x13 rollers which these motors use have them in those odd weights too. Malossi,polini,stage6 doppler all have them or you can make your own with a step drill bit and pocket scale. Don't expect to get your bi...
- Fri Jan 27, 2012 10:37 pm
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
Raising the jug up to increase the port duration narrows the power band. Its does raise peak power some and also raises topspeed due to higher max rpm but you do narrow the power band up which makes for a more difficult fine tunning.the higher the exhaust duration you run ,the higher the cylinder c...
- Fri Jan 27, 2012 10:23 pm
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
Greetings: First off, beware if you've raised up the cylinder and still seeing 150PSI BEWARE! That 51mm kit has thin walls, and isn't very forgiving of overheat conditions. My first one grenaded with 135 PSI in fact. Look for more like 125 for a decent chance at durability. Add a head gasket or hog...
- Fri Jan 27, 2012 3:34 pm
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
any comment on raising the cylinder up so much that it changes peak power?? im not even sure if thats how it works. thats why im asking.. been reaserching all day kinda gave me a headache so i figured id just ask..
- Fri Jan 27, 2012 1:04 pm
- Forum: Performance Technical
- Topic: rpm tunning question
- Replies: 20
- Views: 6720
Re: rpm tunning question
i was running great at 48g went to 45g and the revs went up that much.. i know 3 grams is kinda a big jump for fine tunning, but how do i get my r's in the peak power area with out lowering weights??? with 48g i never seen rpm's over 9500. just trying to make sure its tunned to the best of my abili...