Results 1 to 5 of 5
  1. #1

    94 sl750 I'm toast, will I have to change the cam?

    I guess I'm toast...

    Will I have to change out the cam?
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

Name:	PTO Pistion 1.jpg 
Views:	36 
Size:	19.5 KB 
ID:	244891   Click image for larger version. 

Name:	Center Piston 1.jpg 
Views:	36 
Size:	20.7 KB 
ID:	244892   Click image for larger version. 

Name:	Mag Pistion.jpg 
Views:	36 
Size:	18.4 KB 
ID:	244890   Click image for larger version. 

Name:	Mag Intake 1.jpg 
Views:	43 
Size:	20.4 KB 
ID:	244889  

  2. #2
    slothman's Avatar
    Join Date
    May 2011
    you need to find out why you fried the piston before you rebuild the engine. My guess is no fuel?

    Scarring looks pretty bad on the cam, you might as well replace it. It might be more cost effective to drop in a used motor, rather than rebuilding.

  3. #3
    johnsonmtz's Avatar
    Join Date
    Oct 2006
    Mt. Zion Illinois
    Yeah, it looks like some of that piston material went in the bottom end and chewed on the crank. You'll need to pull that engine out and tear it down completely. You could get the crank rebuilt and one new piston.....or a remanufactured crank plus one piston.......or just drop in a new motor.

    You are indeed lean on all 3 pistons. Either your carbs aren't set properly, you don't have enough fuel supply (original 1-outlet fuel pump), you have one or more plugged carbs, or you have a fuel restriction somewhere. You definitely need to find the source of the problem before you even think about putting another engine in that hull.


  4. #4
    Rasta Mon Condoms We Be Jammin!!!!! TxVirageTx's Avatar
    Join Date
    Aug 2006
    sbt rebuilt motor,rebuild carbs,and get 3 outlet fuel pump or part it out.

  5. #5
    bowsniper's Avatar
    Join Date
    Aug 2008
    Camshaft? no such animal. You mean crankshaft.

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 1
    Last Post: 06-29-2016, 02:16 AM
  2. How high will price have to get before you stop buying.....
    By ron00023 in forum Yamaha Open Discussion
    Replies: 27
    Last Post: 09-22-2007, 03:26 PM
  3. Replies: 14
    Last Post: 05-29-2007, 09:18 PM
  4. Will I have to remove the waterbox????
    By GeoRXT in forum 4-Tec Performance
    Replies: 25
    Last Post: 09-13-2006, 07:09 PM
  5. Instaling my BOV do I have to use the middle notch????
    By Jrsrxp in forum 4-Tec Performance
    Replies: 11
    Last Post: 07-22-2005, 07:32 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts