BuggyMasters.Com - An On Line Mini Buggy Forum and Go Kart Forum

Go Back   BuggyMasters.Com - An On Line Mini Buggy Forum and Go Kart Forum > Technical Discussions > 150cc GY6 and Under Engine Tech

150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum

 
 
Thread Tools
  #1  
Old 08-08-2016, 07:28 AM
toomanytoys2's Avatar
toomanytoys2 toomanytoys2 is offline
Contributor
 

Join Date: Sep 2012
Location: Lefty California
Posts: 284
Default Modifying CVT belt cover

Yesterday my son and his buddy took the HH to a nearby field and stretched its legs. I was sitting in my Baja on a nearby hill to keep an eye on them. All of a sudden, they stopped, got out and looked at the engine. So I drove down to them to investigate. Turns out they didn't have any drive in forward or reverse. I always carry a tow rope, so I towed them home. 1st thought was CVT belt, so I grabbed a flashlight and looked in a vent hole - sure enough, belt cords. I drive this buggy fairly long distances in the SoCal desert, so I looked at what would be the minimum tools needed to swap the belt in the field. I decided that it would be a royal pain in the rear.

So I came up with an Idea, What if I pull the cover off, and use a metal bandsaw to cut the cover into two pieces. Where I would cut it would be vertically through the hole that was originally for the kick starter. Then I would have a front and rear halves, and wouldn't have to worry about pulling the exhaust off . We never go through water, and there would only be a small slit between the two pieces. Does anyone see a problem with this?

Thanks
__________________
2005 Hammerhead 150
170cc BBK, PnP Big valve Head, A12 Cam, Uni Filter, Custom Exhaust, 10G rollers, 1500 Contra Spring, 2000 Clutch Springs

Just added - 2007 Joyner 250 SV - Let the fun begin

4-Dirt Bikes, Baja Bug and enough toys to keep me in the garage and out of trouble.
  #2  
Old 08-08-2016, 10:34 AM
OLDKID's Avatar
OLDKID OLDKID is offline
Contributor
 

Join Date: Nov 2014
Location: Western N.Y.
Posts: 457
Cool

I only ever had the cover off of my first one a few years ago and can't remember how much meat it had , heavy , or flimsy . My concern would be how much reinforcement does it add to the rear arm of the case itself ? Couldn't you do an exhaust mod. to accomplish the same thing , two piece header pipe , slip joint , springs , etc. Like a bike exhaust .
__________________
2011 BMS KING COBRA 150 Sold
YERF DOG SPIDERBOX's Sold
YERF DOG 3203's. Sold
MANCO SILVER FOX. Sold
2009 POLARIS 500 HO SPORTSMAN 4X4
2002 POLARIS 500 HO SPORTSMAN 4X4
2000 POLARIS MAGNUM 2X4
HALF A DOZEN CHEVY 4X4's
NEED-MO-BUGGY
  #3  
Old 08-08-2016, 02:12 PM
toomanytoys2's Avatar
toomanytoys2 toomanytoys2 is offline
Contributor
 

Join Date: Sep 2012
Location: Lefty California
Posts: 284
Default

My exhaust is already like that. However, for support the muffler has a strap that goes to the kick start shaft. In the field, don't really want to wait for the exhaust to cool down, before I can work. Especially if the ride is right before dark.
__________________
2005 Hammerhead 150
170cc BBK, PnP Big valve Head, A12 Cam, Uni Filter, Custom Exhaust, 10G rollers, 1500 Contra Spring, 2000 Clutch Springs

Just added - 2007 Joyner 250 SV - Let the fun begin

4-Dirt Bikes, Baja Bug and enough toys to keep me in the garage and out of trouble.
  #4  
Old 08-08-2016, 09:11 PM
ckau's Avatar
ckau ckau is offline
Heavy Contributor
 

Join Date: Dec 2009
Location: central North Carolina
Posts: 915
Default

I have consider doing this. one of those "round to it" projects. for the same reason as yourself , making access easier. I know a scooter builder who does some pretty radical stuff. he removes the cover completely, uses a polished aluminum plate held off with spacers to act as a guard. there seems to be no effects as far as bracing or strength to the motor case. Basically the cover simply serves as protection from the elements and a guard to keep fingers and toes out. IMo there's no problem making a two piece unit.
  #5  
Old 08-31-2016, 01:51 PM
SYCARMS's Avatar
SYCARMS SYCARMS is offline
Supporting Vendor
 

Join Date: Sep 2009
Location: Senatobia, Mississippi
Posts: 3,375
Default

The only problem I see with cutting it is it wouls not have a tight enough seal for air o circulate cooling the cvt.
  #6  
Old 09-02-2016, 10:24 PM
scjeep4.7HO scjeep4.7HO is offline
Contributor
 

Join Date: Apr 2015
Location: Virginia
Posts: 197
Default

You could get a thin piece of rubber to fill the cut line, trim it and glue it to the side that would be staying bolted on most of the time.
  #7  
Old 09-10-2016, 05:19 PM
fan4chevy fan4chevy is offline
Contributor
 

Join Date: Sep 2016
Posts: 252
Default

Maybe for the center area you can get a T gasket of some sort. T rubber. Maybe a modified seal from a door bottom seal. Just a thought.
__________________
Buggy 1
150cc Buggy
A12 Cam, 12g Sliders, Ban Jing Bell, NCY Green Clutch, 24mm Carb, 115mm Koso variator ramp, redneck intake, uni filter, straight through exhaust.

Guang Max 150
All stock but to be like Buggy 1 with all koso cvt.

Roketa 150
Complete tear down building port/polished 61mm NCY head, 62mm cylinder, A12 Cam, 28mm carb, straight through exhaust, 8 pole stator, possibly 2.5 stroker, painting frame, adding plastic including doors and rzr seats.
 


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 07:51 PM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.