MHR cylinder kit issue roll call
Moderator: Moderator
-
- CB900F
- Posts: 1485
- Joined: Wed Mar 18, 2015 11:49 am
- Location: usa
Re: MHR cylinder kit issue roll call
I had a kit burn up a piston but the replacement piston worked great. I doubt it was just an airleak but you never know. Redeft was the supplier back in the day.
- Mini_Stroker305
- Goped
- Posts: 90
- Joined: Sun Mar 01, 2015 6:05 pm
- Location: Key west, FL
Re: MHR cylinder kit issue roll call
Ive helped DSD with his MHR kit when he had one but never gave any major issues like these. Just couldnt get her to full peak performance not sure where he got the kit from
96 Yamaha Jog Next Zone CY50
72cc Polini Evo 2
Ruima 41.4 Teflon ministroke
Yasuni C16
24mm Polini pwk
Malossi 8:1 Primary Gears
Malossi VL14 Reeds
Polini 360 Mani
Jaingwayne transmission
Michelin S1 tires 90/90/10
Hoca Racing Fan/Alternator kit
72cc Polini Evo 2
Ruima 41.4 Teflon ministroke
Yasuni C16
24mm Polini pwk
Malossi 8:1 Primary Gears
Malossi VL14 Reeds
Polini 360 Mani
Jaingwayne transmission
Michelin S1 tires 90/90/10
Hoca Racing Fan/Alternator kit
- patthesoundguy
- Moderator
- Posts: 3159
- Joined: Mon Mar 29, 2010 11:38 am
- Location: Nova Scotia, Canada
- Contact:
Re: MHR cylinder kit issue roll call
I had mine melt the piston through on the first day of riding after the break in. The temps diddnt rise above 325F it was a major bummer. It had that chalky look to it.
Dude! Ya Can't Fix Stupid!
84 Spree stock
84 Spree Dio AF18E MHR Cylinder Arrow Pipe 28mm OKO
80 Express, 47mm DR BBKit, Weak Ends Intake, Boyesen Dual stage reeds, 19mm Delorto carb, MLM pipe
79 Express
85 Aero 80 stock
84 elite 125 stock
84 Spree stock
84 Spree Dio AF18E MHR Cylinder Arrow Pipe 28mm OKO
80 Express, 47mm DR BBKit, Weak Ends Intake, Boyesen Dual stage reeds, 19mm Delorto carb, MLM pipe
79 Express
85 Aero 80 stock
84 elite 125 stock
Re: MHR cylinder kit issue roll call
I had a vespa 200 with a MHR 220cc piston that I paid $300 for to have installed and bored and it melted and had obvious castingmarks and the shape was off. It wasn't chalky to say, but it had a very funky pattern of ripples on the side where it had kinda gernaded.
http://www.sip-scootershop.com/EN/Produ ... +_31162510
This kit, or one very similar, but from Florida.
http://www.sip-scootershop.com/EN/Produ ... +_31162510
This kit, or one very similar, but from Florida.
-
- CB900F
- Posts: 1485
- Joined: Wed Mar 18, 2015 11:49 am
- Location: usa
Re: MHR cylinder kit issue roll call
Was it bored out stock cylinder or a mhr kit? A 221cc mhr vespa Cosa would be sweet.
Re: MHR cylinder kit issue roll call
1man8scoots wrote:Was it bored out stock cylinder or a mhr kit? A 221cc mhr vespa Cosa would be sweet.
It was that piston, or a copy of it and I had the local shop just bore it and port it.
Re: MHR cylinder kit issue roll call
No prob on my bore kit but my crank I had one where splines did not line up with drive face anyone had that issue. I'll get a product number up later
Re: MHR cylinder kit issue roll call
Got it local. Been running my mhr bore for 6yrs now and recently with the yasuni on it kinda wore down its compression. it's gonna need a new piston and rings soon
Re: MHR cylinder kit issue roll call
I got one recently from racing planet usa for my jog and never ran right so I went back to polini.
some people dream of speed, i own your dreams!
Re: MHR cylinder kit issue roll call
X100,000,000graphite9 wrote:maddog nobody can take your posts seriously...
Re: MHR cylinder kit issue roll call
I got my MHR from Wheelman and I'm pretty sure he got it from Redetf. He put about 400 miles on it and I've got about 100 on it and no problems to date.
86 Aero 50,Polini 65cc BBK,malossi oring head,100 oct. 32:1
21mm OKO,Malossi Wild Lion exhaust,
Stock Ruck vari, malossi special belt,1.5k shoes,1k center,
aftermarket bell, front/rear metro wheels, TT vapor,
5in stretch on motor mount,280mm Shock.
21mm OKO,Malossi Wild Lion exhaust,
Stock Ruck vari, malossi special belt,1.5k shoes,1k center,
aftermarket bell, front/rear metro wheels, TT vapor,
5in stretch on motor mount,280mm Shock.
Re: MHR cylinder kit issue roll call
Im betting all the clones are coming from the same factory or are made by the same people. My fake piston kit had a brand of rings called PCK never been able to find them.graphite9 wrote:so it wasn't a true kit. Im just referring to the MHR's on the dio's.
nonetheless I wouldn't be happy about that. Im not stating that malossi sells bogus kits, I'm just trying to pinpoint where the counterfeit mhr kits are being sold. Malossi doesn't deserve the brand blemish.
Got the piston from a discount supply warehouse deal.
- paulpauly7
- CB900F
- Posts: 1945
- Joined: Tue Feb 21, 2012 6:57 pm
- Location: nz
Re: MHR cylinder kit issue roll call
I had a issue with the malossi small shaft crank .There was too much left to right play in the rod bearing .Stock dio was about 10 - 13 tho this malossi had 27 tho way to much float .I bought from red eft who was great to deal with he contacted malossi they said service limit was 25tho .It had a horrible rattling at idle and off throttle .I took it to a shop here and they pressed the crank closing it up to 14tho and trued it up i reinstalled and my noise was gone .
86 Nifty Fifty (spree)
ZX disk brake
Kitico 120kmh speedo
AF18 ZX ported
Polini corsa
Malossi crank
CTmani
24mmOKO
40pilot118main
Scorpion pipe
8.44 to 1
Michelin s1
71.3mph
92 yz125, 94 crm250
ZX disk brake
Kitico 120kmh speedo
AF18 ZX ported
Polini corsa
Malossi crank
CTmani
24mmOKO
40pilot118main
Scorpion pipe
8.44 to 1
Michelin s1
71.3mph
92 yz125, 94 crm250
Re: MHR cylinder kit issue roll call
Its a track only race bore.
some people dream of speed, i own your dreams!