|
|
|||||||
| Gas Yamaha Gas Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles |
  |
|
|
Thread Tools | Display Modes |
06-08-2009, 06:33 PM
|
#1 |
|
Not Yet Wild
Join Date: May 2009
Location: Ocotillo,California
Posts: 20
|
top end keeps going out
hello guys & gals I hope someone can help me I keep buying new piston & cylinder kits for my G-1 this is getting old I tried several diferent air cleaners but every 2 or 3 months im replacing the top end thanks for any help Bill
 |
|
|
 Today
|
|
Sponsored Links
__________________
This advertising will not be shown in this way to registered members. Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum |
|
|
06-08-2009, 07:40 PM
|
#2 |
|
Admin/Moderator
 Join Date: Dec 2006
Location: Ohio
Posts: 18,052
|
Re: top end keeps going out
Welcome to BGW!
If you are not sucking any dirt, I would look at the crank and connecting rod bearings. Is the cylinder size within tolerance? |
|
Ron
 PLEASE VISIT Our Sponsors * BGW GEAR The Store The G2 Project * Swing Arm Drop & Repair * Geep1 Project |
|
|
|
|
|
06-08-2009, 08:07 PM
|
#3 |
|
Gone Wild
Join Date: Nov 2007
Posts: 469
|
Re: top end keeps going out
if you are still using the original oil injection I would buypass it & start mixing oil in gas it is probably running to lean
|
|
|
|
|
06-08-2009, 09:42 PM
|
#4 |
|
Gone Wild
Join Date: Jan 2009
Location: Alabama
Posts: 2,120
|
Re: top end keeps going out
Hi Bill, Welcome to BGW!
I think we need more info on this... First...What is wrong with the piston and cylinder? Are you melting the sides of the pistons to the cylinder? Burning holes in the top of the piston? Knocking off the piston skirts? Breaking rings/scoring cylinders? Second...When it's apart, is there an oily film or is it dry? Do you premix? If not, how often do you need to fill the oil injector? Is it run for long distances at a time, or stop and go? Sounds like a form at the doctors office, don't it??  This will help us figure out cause of your top end failures. Any answers or other info would be very helpful   |
|
|
|
|
06-17-2009, 08:08 PM
|
#5 |
|
Not Yet Wild
Join Date: May 2009
Location: Ocotillo,California
Posts: 20
|
Re: top end keeps going out
Hello this is bill all the top ends were new checked clearance on all and were fine . when i first bought cart the guy had a 40 mm kiehin carb on it i thought it washed down the cylinder wall but i premix 40 to 1 yamalube and reg gas but i put a 24 mikuni and re jetted for sea level the problem seem to be rings wearing out to early and breaking the ring land on the piston does anyone know what engine is semi bolt in for my g1 thanks for all your help need all the help i can get thanks Bill
|
|
|
|
|
|
||||||
|
|
Linear Mode
