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Enduro Intake/Carburetion - 2 stroke Jetting, Reeds, Air Filters, etc. |
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#1
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Timing problem???
Riding last week we were about 800 to 1000 ft above sea level (maybe), I did not re jet but jetting seemed ok as weather was cooler than normal.
A mate rode the bike and happened to have a go where there was a lot of flowing corners and managed to get high in the revs in top gear on the summer setting. While doing this the motor started pinging . A good mate said this was a timing problem as on the rain setting it was ok, which it was. My question ( without checking), is whether or not the timing is adjustable and whether or not this is trhe problem. Has anyone had the same problem? Cheers Mark |
#2
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Mine would do the same thing.
Ron @ RB-Designs advised me to go to a bigger main jet. I had a 180 main. Went to a 182 and the pinging went away |
#3
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OK,
Thanks for that I will try it Gas gas man. I too have a 180 main. Cheers Mark |
#4
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Also, When I was riding at about 1/3rd throttle and cracked it wide open it would bog or die until I wound it back and fed it on slowly.
Same prob or not, seemed like it was almost too rich( like riding with choke on). I will get a jetting kit anyway as I want to have a bit of a play but am still interested to know whether the timing is adjustable or not. Thanks again guys, Mark |
#5
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yes, the stator plate has elongated holes to adjust the timing. You might try moving it the same as the crank rotation a small bit in order to retard the timing. Let us know the result as I have been wanting to do it to my bike (minor pinging when really hot and being worked hard) but have been too lazy to pull the flywheel to try it.
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jeff '00 XC250 (mine) LTS front and rear suspension, power valve cover, carb jet kit and rear chain glide, RB Designs head mod, BRP tall triple clamp, backyard foot-peg lowering conversion. '04 EC250 (the kids) (he can do his own mods haha!) |
#6
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Good luck if you can adjust it on the stator plate. I tried this on mine and could only get about a 2 deg of movement in retard. Forget what stopped it now. There was a special elongated washer that I had to remove to get any movement.
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#7
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So what did you end up doing?
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#8
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Retarded by 2 deg only!
To get more would've required drilling the casings or some elaborate fabrication. But I wasn't doing it to stop pinking, I just wanted to soften the response. You should check yours, mine was an 03 motor - yours may be different. |
#9
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I will mate, thanks for the heads up though.
Cheers Mark |
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