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Thread: Need engine timing help

  1. #1
    Join Date
    Jan 2003
    Location
    Southern MN
    --
    1,875

    Need engine timing help

    I was wondering if anyone knows how to time a Honda 185s or 200s engine (1982). I have worked on Yamaha engines before, but thier totally diffrent, and I'm new to Honda trike engines. I understand you must line up the cam chain and sprocket just right, but how do I tell if its in time? What else do I have to set on it? I heard theres something on the lower part of the engine that has to be set in time exactly as the cam chain does. I don't own an owners manual either, so some diagrams and a good explination would be great help to me. If anyone can help in any way, let me know. Thanx again.
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

  2. #2
    bbechtel16 is offline At The Back Of The Pack Arm chair racerAt the back of the pack
    Join Date
    Oct 2002
    Location
    Halifax, PA
    --
    400
    On my SX there's a timing mark you have to line up in the bottom end. You can see it by taking off a cap screw. Then on the top you have to line up the 2 marks on the cam gear with the top of the head with the cam lobes facing down. I think its a lot easier with 2 people, one to hold the bottom in time and one to do the top.
    -'86 ATC 250SX: No longer mine... Complete 350X front end, Corbra Megaphone system, 350X carb with UNI dual stage foam & outerwear bolted driectly up, Powroll/Rocky 260cc bore 10.5 to 1 compression piston.

  3. #3
    Join Date
    Jan 2003
    Location
    Southern MN
    --
    1,875

    timing

    Thanx man. I managed to get my hands on a TRX 200 repair manual the other day. The engines are pretty much the same, and I will be using that for help as well. Hopefully I can get this thing running in a couple days.
    THE 80's RAGE! Currently owns:
    81, 85 Yamaha Tri Moto 125
    83 Yamaha Tri Moto 200 x2
    82,83 Yamaha Tri Moto 175 project
    85 Yamaha Tri Z 250
    84 Kawasaki Tecate 250
    84 Honda ATC 70
    85 Honda ATC 350X
    84 Honda ATC 250R
    (2) 84 Honda ATC 200x
    82, 83 Honda ATC 185s
    81 ATC 200
    Lots of other parts and bikes

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