How do I set the timing on an 01 Rancher 350? - Honda Rincon Forum : RinconRiders Honda Rincon Forums


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Old 09-28-2009, 05:16 PM   #1 (permalink)
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Default How do I set the timing on an 01 Rancher 350?

I was wondering if anyone had a step by step or some general advicehow to set the timing on an 01 Rancher 350? I believe it is through the pull start, and if it is, what do I do from there?

Any advice would be appreciated!
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Old 09-29-2009, 11:34 AM   #2 (permalink)
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Do you mean cam timing or ignition timing?
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Old 09-29-2009, 02:03 PM   #3 (permalink)
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no way to adjust engine timing on that bike, some Fuel injected bikes you can..but thats a totally different situation than you. (theoretically you could on your bike to....but it would involve some work like finding or having a offset flywheel key made or moving your pickup inside your engine).

If you have checked your engines timing by using a timing light and it seems off a little, check a few things first.

First, check connections at your coil.... Be sure that your two wires are free of corrosion and fit tightly onto the spades of the coil.

Second, check your spark plug wire for tears, rips, contaminiation of water, mud or anything else that could be wrong.Plug check also....be sure that the insulator is not cracked or chipped.

Third, check your connector for the flywheel sensor. this is the magnetic pickup that I refer to in the first paragraph. Check for dameaged wires, or most likely....bad connection. these connections should be as clean as possible with dielectric grease packed into them



Now, if your wondering about cam timing.....your engine is a pushrod engine. The cam is alighned with the crank via two gears inside the block. On these two gears resides two dots.....when the cam is indexed properly with the crank the two dots face each other perfectly. there is no way for that mesh of the gears to change.....there is nothing to fail here. Unless someone has split the case and improperly indexed these gears.....it will never "jump timing" on you.

Id be inclined to say you are talking about spark timing instead of cam timing....but you know what assumptions lead too
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Old 09-29-2009, 02:08 PM   #4 (permalink)
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I have no idea. Are you trying to set the valves??????
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Old 09-29-2009, 02:14 PM   #5 (permalink)
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Remember to remove your plug.... makes it so much easier to get the mark where they need to be on the flywheel.
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Old 10-01-2009, 08:13 PM   #6 (permalink)
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Thanks Cavhooah1< The cam timing is the one I thought I was having the problem with. yes, the crank was split and cylinder re sleeved for a new piston. The engine was all put back together by a mechanic friend of mine that is to busy to help me out with this issue.

After it was put together, I had taken it out on a test run to get everything moving again. After about 5min or so it back fired twice pretty hard, but it ran fine after that. I rode it for another half hour but it really heated up! Since then I haven't had much luck finding the problem of why it would heat up so much (you could start the bike and just stand there holding the throttle half way. The exhaust right at the head would turn bright red!) The carb has been cleaned VERY thoroughly and the jets set.

The next thing that happened was a few weeks after (sat in garage whole time) I started the bike to remind myself of the problem and was ready to take another crack at it. It started to spit oil into the air box.... I had only put a little over a litre of oil in to get the engine torun it for the first run and it wasnt run hard at all. So not too much oil.

Now,.....the machine will not max out on the throttle - or idle. So I am really stumped here. I was told thata good backfire could throw the timing out. So here I am
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2007' Camo Rincon with 2" Lift - 26" Dirt Devils - 2500lb warn winch - reverse rev limiter bypass switch - 1.5" snorkle - "twin air" air filter with protective 'sock' - 1.5" wheel spacers at rear - 28" Outlaws, A-arm skid plates, and Kimpex rear foot pegs waiting for the bike to run again.
2001 Honda fourtrax 350 - 26" Mud Lites - 2" Highlifter lift kit - completely re-buit from the bottom up,
2008 Honda TRX 500 Foreman ES - completely stock right now debating modifications or sale
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Old 10-01-2009, 08:24 PM   #7 (permalink)
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check valve clearence use the procedure CAV listed. They may have not been set right, or lock nut tight, or just running after putting it back together. It is always a good idea to check valve clearence after running it after having it apart anyway. If it ran, and started good at first, it wouldn'tbe timing unless thr chain jumped, but that is unlikely
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Old 10-01-2009, 08:29 PM   #8 (permalink)
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Also forgot to add my guess there is not enough clearence,and the valves are not closing blowing back on the intake, and fireing on a open exh valve that is not closing
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Old 10-01-2009, 10:30 PM   #9 (permalink)
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Swine, Im right with you on that.... As I was reading down the post, thats what I was thinking too.

Mud, that would cause your heat issues...backfire issues...and in general running like poop issues. Are you comfortable checking your valves ?

Any mechanic worth his salt, will know about the two dots on the cam and crank. I would rule that out, unless your not sure of your mechanics ability.



You can easilly check if your rockers are to tight by removing your spark plug, removing the valve cover....and rotating the engine over slowly untill you feel slack in your rocker. If there is no play at all through you rotating the engine over 2 complete revolutions....your rockers are to tight, and you will need to adjust them. This is a non-scientific way of checking....but it works good to tell you if they are too tight. If they are, you will need to break out a 10mm wrench, flathead and feeler gauges.

There is also no need to remove your pull start to do any of this....you can spin the engine over nicely by the pull start once the plug is removed.



One more thing too mud, after re-sleeving a jug....its VERY important that you check head bolts after you get it heat cycled a few times. Some time, your sleeve will "settle" down further in your jug. They will run a smidge hotter after re-sleeving and a re-ring due to the rings and sleeve "breaking in" to each other. But other thatn that, it should run fine besides a little extra heat for a while....mind you NOT a cherried exhaust....but a little hotter.

Keep is informed !
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Old 10-02-2009, 12:19 AM   #10 (permalink)
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The 350 Rancher has a chain driven cam.
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