SUZUKIPictures of how I set the timing on the camshaft sprockets and timing chain on my 89-09 Suzuki GS500 motorcycle.

But first, lets pay some bills:

  1. I had the head and cylinder block off to fix the gasket leak and clean up the carbon deposits on the head and pistons. That done, I reinstalled the pistons, reassembled the top end, and pulled the timing chain up through the head.

  2. I removed the signal generator cover, or the right side engine cover, so I could get to the crank bolt and timing marks.
    signal generator cover

  3. I used a wrench to rotate the crankshaft by the LARGE BOLT, 18mm I think, not the small bolt. The small bolt holds on the signal rotor. The large bolt turns the crankshaft.

  4. I'm looking for top dead center (TDC) on the right piston. When the RT (Right Top) mark is on the rear pickup, that is RTDC, Right piston, Top Dead Center.

  5. When the RT mark is on the rear pickup, the LT mark is on the forward pickup. 5 to 15 degree timing advance will not make any difference for setting the timing on the timing chain and cams. The difference is so small it is way less than one link on the chain.
    LT mark

  6. Here are both camshafts and all four camshaft journal holders. A "journal" is the part that the holders hold. The exhaust cam is marked EX and the intake IN. The exhaust also has a worm gear for turning the tachometer cable. Those gear teeth are brittle, so be careful and gentle installing that cam. How do I know? Shut up.

  7. Reinstalled the camshafts and the front timing chain guide.
    timing chain guide

  8. Here are the camshafts set in place without installing the journal holders.

  9. This is the exhaust cam from the right side of the bike. On the right side of the exhaust camshaft sprocket, mark "↑ 2" (up arrow 2) is at 12 o'clock and mark "1 ↑" (1 up arrow) is at 3 o'clock, even with the head mating suface. The 2 arrow points to this circled chain pin. This is pin # 1.

  10. Now I count to pin # 18. 18 pins is 9 links.
    timing chain pins

  11. Timing chain pin # 18 is cirlced here. This timing chain pin # 18 gets aligned with the intake camshaft sprocket at timing mark "↑ 3" (up arrow 3). This is the best picture I have. Can't read it? Look in your Factory Service Manual!
    intake camshaft sprocket timing mark

  12. Journal holders + Moly paste + Torque. Careful to not damage worm drive on exhaust cam. Careful to install camshaft holders slowly and evenly to not damage camshaft lobes. Even Fleabay camshafts are expensive. How do I know? SHUT UP!

  13. Timing chain tensioner. That is a little screwdriver in my hand. I held the tensioner and screwdriver with one hand, and installed the bolts hand tight with my other hand.
    Timing Chain Tensioner

  14. Next I sold out to make 02ยข so I can fulfill my lifelong dream of owning a 1986 944 with blown head gaskets.

    But no minivans!

  15. Then I finished my beer.


For legal reasons you should not try anything you see on this website.
Comments are suspended due to tons of spam.

Donate to Charity

If this site has helped you, or even if it hasn't, please help care for abused and neglected children by making a donation to The Valley of the Moon Children's Home. That's right, abused and neglected children. Visit their website and try not to cry, you cold hearted bastard. Their site talks about how they achieved their goals and built a new home, but that was years ago. They still need cash to take care of all the kids there. Breaks my heart and pisses me off.

Think: Cars are expensive, powerful, and heavy.   Before I start work, I face the possibility that I will destroy my vehicle, my own life, and innocent pedestrians' lives.   If anyone messes with a 4000 lb machine capable of 100 mph, these are real possibilities.   If I get in over my head, I call a professional mechanic.   The information on this website is provided only for entertainment purposes, and it is not intended as advice on how to service a vehicle.   For all you know I made this up.   Don`t believe everything you read on the internet.

Disclaimer: The technical information in these documents is provided without any warranty whatsoever and at no cost.   All information is in general terms and is not meant to apply to your particular situation, be current at the time you read it, or even be correct in the first place.   Improperly maintained vehicles can lead to serious injury, death, or unavoidable accidents. The author is not responsible for any errors on this site, and does not make any claim at all about the validity, safety, or veracity of the information contained on this website. Any work you choose to do or not to do on your vehicle is done at your own risk. The information on this site is not intended to serve as a replacement for professional advice, professional workmanship, dealer service, union labor, or psychological counseling.   The author disclaims any and all liability directly or indirectly arising from the application or use of any information or idea contained on this or any other web site.   By opening this page, you agree to never sue anyone ever or allow anyone to be sued on your behalf.   The appropriate professional should be consulted regarding your specific condition.    BeerGarage.com does not take responsibility for the information posted on other sites to which it links.

Copyright (c) 2007-2018 BeerGarage.Com.  All rights reserved.
Valid XHTML 1.0 Transitional

Written in Notepad2 and KWrite.
Last modified: 11/22/2014