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

Reply
 
Thread Tools
  #1  
Old 10-23-2015, 11:44 PM
BEEFKING69's Avatar
BEEFKING69 BEEFKING69 is offline
Contributor
 

Join Date: Jun 2015
Location: Blountstown, Fl
Posts: 364
Default 57.4mm cylinder wont fit howit

So i started to rebuild a yerfdog spiderbox and first ordered a 58.5mm cylinder and it wouldnt fit so i ordered a 57.4mm cylinder and it wont fit?????

Will nothing fit these howits or do i just have an oddball?

The number on the case is LH157QMJ....I have 6 of these howit motors plus the one on my crossfire which has a 60mm cylinder in it and then a hammer head.

My crossfire case number is just 157QMJ and then the hammerhead is obviously not a howit..... So if these howits cant accept anything bigger than a 57mm then they are junk as far as im concerned
Reply With Quote
  #2  
Old 10-24-2015, 07:13 AM
JERSEYDEVIL's Avatar
JERSEYDEVIL JERSEYDEVIL is offline
Supporting Vendor
 

Join Date: Feb 2011
Location: port charlotte fl
Posts: 831
Default


where did you get the cylinders from, maybe it's a 2 bolt gy6 cylinder?
ive been running 58.5s for a couple of years in my yerf.
__________________

"LUCIFER" JOYNER JD400,
CROSSHAMMER 250R,
YERF GX150,
CROSSFIRE MBX150,
BMS 800V-TWIN
'16 RZR 900s ,
'17 ACE 900XC,
'99KX250,
'94 KDX200,
'18 SSR SR170TX

Reply With Quote
  #3  
Old 10-24-2015, 01:38 PM
BEEFKING69's Avatar
BEEFKING69 BEEFKING69 is offline
Contributor
 

Join Date: Jun 2015
Location: Blountstown, Fl
Posts: 364
Default

Its not the stud spacing its the sleeve wont go in the case bore
Reply With Quote
  #4  
Old 10-25-2015, 12:22 AM
xlint89's Avatar
xlint89 xlint89 is offline
Senior Member
 

Join Date: Dec 2011
Location: cleveland OH
Posts: 1,064
Default

I'm with Jersey. Where did you get the cylinder from?

I had a NCY 58.5mm cyl on my Yerf (Howhit) with no problem.

Although, I am wondering what the LH in your engine code means? Pretty sure mine doesn't have that
__________________
My Yerban assault vehicle: 2.2mm stroker crank, 62mm Nikasil cyl, Taida large vavle head, American made valve springs, ported intake manifold, TM 28mm carb, stock CDI, Bando coil, TK exhaust, stock CVT except for the 14g sliders, 13/40 internal gears, 16T drive, 31T axle sprocket, 22" rear tires, and ONE BIG POTATO CANNON mounted on top..........
Reply With Quote
  #5  
Old 10-25-2015, 01:19 AM
BEEFKING69's Avatar
BEEFKING69 BEEFKING69 is offline
Contributor
 

Join Date: Jun 2015
Location: Blountstown, Fl
Posts: 364
Default

A guy called gy6racingteam on ebay.....thats the seller i get 90% of my stuff from and never had any problems till this motor :/ this is a 4bolt valve cover motor btw....think ill pull one of the other howits apart and see if either cylinder will fit.

Check your engine code and see cause all the howits i have start with LH except one of the 3 crossfires i have and im begining to think its a hammerhead motor cause its code is just 157qmj plus it has the long output shaft for revers and it has the oil cooler ports on the case.

Last edited by BEEFKING69; 10-25-2015 at 01:23 AM.
Reply With Quote
  #6  
Old 10-25-2015, 08:55 AM
ckau's Avatar
ckau ckau is offline
Heavy Contributor
 

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

The original Howett motors don't have the LH prefix letters. Don't use the long output shaft and don't have the oil cooler provision. They do accept the 58mm jugs. Appears someone got some motor cases mixed up.
Reply With Quote
  #7  
Old 10-25-2015, 08:37 PM
BEEFKING69's Avatar
BEEFKING69 BEEFKING69 is offline
Contributor
 

Join Date: Jun 2015
Location: Blountstown, Fl
Posts: 364
Default

I just picked up another stock spiderbox lastnight and it also has the LH motor???
Reply With Quote
  #8  
Old 05-20-2016, 09:51 AM
Tony915 Tony915 is offline
Lurker
 

Join Date: May 2016
Posts: 1
Default

Did you figure this out???? I just got a yerf dog and ordered the piston and rings and didn't fit (57.4mm)...
Reply With Quote
  #9  
Old 05-20-2016, 03:49 PM
BEEFKING69's Avatar
BEEFKING69 BEEFKING69 is offline
Contributor
 

Join Date: Jun 2015
Location: Blountstown, Fl
Posts: 364
Default

No i ended up trying 8 different howits before i found one it would fit and dremeled the case on a couple of the others.
Reply With Quote
Reply

Thread Tools

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 08:44 AM.


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