Honda Fourtrax 300 - TRX300 Valve Adjustment
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- Опубликовано: 6 сен 2024
- Valve adjustment Fourtrax 300 - TRX300 at beginning of video. Tools needed, disassembly description, before and after. Hope this helps you.
Note: .15mm or .006 inch feeler gauge. (Page 57 in Manual) 1988
Note: Adjust on the compression stroke.
MARKINGS ON FLYWHEEL
T or (T With Hash Mark) = TDC (USE THIS TO ADJUST) (Compression Stroke)
F = Initial Spark Advance 1300RPM or less timing light shows this.
II (Dual Hash Marks) = (Timing Advance)- 1300RPM or more, timing light shows this.
FINDING THE COMPRESSION STROKE
Removing the spark plug placing a finger over the hole notice air push out on the rotation. With plug in place while rotating it will feel like a tightening. Also, both valves will have play as apposed to exhaust stroke.
Best thing I did to this Fourtrax so far - besides a muffler. It runs and sounds nearly new!
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#Honda TRX300 FWI
#1988 Honda TRX300
#Honda TRX300 valve adjustment
#Honda TRX300 valve lash adjustment
Disclaimer: Please note: This is just a demonstration of what I did and what worked for my particular project. All videos on this channel are for informational purposes only and we are not liable for any claims of any kind, loss or injury. Warning: The tools and equipment presented on this website can be dangerous. Use all necessary safety protections at all times.
Question: For Engine PRO's - I went slightly tighter on the valve adjustment using the gauge. Will this cause any issue down the road? What I notice is that the valves rockers have some play side to side and rattle somewhat. The noise was reduced. I do not know the run time hours of this engine, yet may do a compression test to get an idea of the wear. - Thank you any input!
Thanks i needed to know if the T was the one who is on its side. Cause there are 3 marks on the fly wheels 1st 2 stripes a 2nd mark that looks like a t or h or 2 lines and then the T layed down with 1 line i got confused
You are welcome. From the manual page 58.
T or (T With Hash Mark) = TDC (USE THIS TO ADJUST) (Compression Stroke)
F = Initial Spark Advance 1300RPM or less timing light shows this.
II (Dual Hash Marks) = (Timing Advance)- 1300RPM or more, timing light shows this.
@@SteveAddis ohhhhhh thanks makes more sense now :) usual its clear on the flywheel T and befor you got 2 lines but on this adly 300 (honda trx300ex) i got confused. i adjusted the valves now, it runs a bit better since i now adjusted them right the 2nd time but still get me black spark plugs so i gotta fiddle with the carb setting always fun
Hello , did it improve it ? Thanks
Hi Robert. It did slightly. There are multiple marks, so I put that info the video description. I plan to go back and check it again with the correct marks that has a "T" and one line. Take care.
Hi again Robert. I readjusted yesterday, marks on the "T" and line. I went slightly tighter, and it made some sound difference. Thanks for your comment!
@@SteveAddis It could be a worn out cam chain. hondas these years are known for this, especially on their three wheelers!
@Spectra4l You may be correct. I hope not to go that deep into working on it for a while. I adjusted it slightly better since this video and it seems quieter. Thank you for your comment! :)