20 Most Recent 1993 Yamaha YZF 750 R Questions & Answers

It's 1 inch away from the kickstand where the kickstand sensor wire plugs into kickstand you will see a 15mm or 17mm bolt can't remember the size

Hey David, yes, there is an intrusion of water somewhere its not supposed to be..(did you use a power washer?)-DO NOT AGAIN.. Leave the bike in the sun, with the seat open.. it will(should) dry eventually...

http://www.airtech-streamlining.com/index.html

I believe both machines share most of the same internals however check the part Nos for both machines if they are the sam your home & hosed.Regards Geoff

change all the plugs,, maybe try a hotter plug as well

Oil in the cylinders mean worn rings or worn valve stem seals. You can try a blow down test to see if it is rings - get an old spark plug and bust out the ceramic weld in a fitting to press with air and air up the cyl. if you here air in the crankcase you have worn rings. You just have to replace the valve guide seals no test there. 

Assuming you mean an ignition switch with key, go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part and/or the notation "Not Available" is in the description, the part is not in stock. www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx

I found an ignition switch for a '94 at Babbitts'. It should be the same one for a '93.


Could you take a moment and rate my answer? Thanks!

check the accelerator cable that is connected to the carburator , then check the carburator the problem is in the carburator.

Hi and welcome to FixYa,

Initially, on your problem that "it won't start" determine if it is an electrical issue or a fuel issue.

Checks:

• does it crank (starter motor spins);
• is there fuel when you loosen the drain screws at the bottom of the bowls of each carb;
• is there spark? remove 1 plug, reconnect to wire, lay it against engine and crank. Note for sparks at tip.

Postback results of tests.

Good luck and thank you for using FixYa.

You may have a bad piston and oil may be getting by.

If memory serves me correct, it doesn't have one. A light comes on when getting low on fuel. Should get about 130-150 miles out of a full tank

Set the fuel mixture screw at 2 1/2 turns out. pilot screws 3 1/2 turns out, & the Dynojet 118 main jets had been installed.Stock jets are 122 according to the Haynes manual.
set the float height at 12mm, ---------- Mains - 182/172 stagger
Needles - stock
floats - 12 mm to 14mm
pilot jets - 38 (one size above stock, #35)
pilot screw - 2 turns out.----------- ------------ Also click this link for ,more help:-- http://technoanswers.blogspot.com/2011/06/pilot-jet-setting-yamaha-yzf-750.html -------------- This should help.Thanks.Helpmech.

Hello,

There could be several things that would cause your problem;

Wrong spark plug gap - too wide
CDI - The capacitive-discharge ignition uses capacitor discharge current output to fire the spark plug.
Bad gas

I would start by stabilizing your fuel to see if this is the issue. Buy a can of Sea Foam and a bottle of Sta-bil fuel stabilizer. Follow the directions on both of these items when filling your tank (use both together). Use premium fuel when filling up for this time. Run a full take through your system. When filling up again, you may use a lower grade of fuel if you want, but use the Sea Foam again. The Ethanol added to fuel these days can cause valve deposits that will lead to engine issues. You don't have to use the Sea Foam in every tank of fuel you buy - just use it once or twice a month.

Hope this helps. If you find this information helpful, please vote on this post.

Regards,

Oz

Hi,

For that, you could Refer to :-

http://viragotech.com/XV750/750viragotechinfo.html

I also Found a Place where you could buy the Service Manual for less than $10 as Compared to other Sites or Vendors charging more than $50.

http://www.tradebit.com/filedetail.php/1128289-yamaha-virago-xv750se-xv750-xv-750-motorcycle

Let me know,if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Turn to the side and then engage the lock with the key.(you may need to push key in before it will lock)move it a little to the left or right to let the lock fit into the handle bar lug.