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Post by JoeyBee on Jan 29, 2015 18:14:14 GMT -5
dyoung1167I agree that using the alignment holes on the cam is the primary method to obtaining TDC. I forgot to add that into the post. As far as moving counter-clockwise I strongly disagree with you. Maybe you don't have a cam stopper on your engine, but OP may. It is just a very good practice. This is a cam stopper.  And it's affects have been throughly discussed. scootdawg.proboards.com/thread/8313?page=1
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Post by JoeyBee on Jan 29, 2015 15:20:11 GMT -5
I set my valves to .004inch intake / .005 inch exhaust.
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Post by JoeyBee on Jan 29, 2015 14:11:32 GMT -5
It's hard to tell hear with my 150cc. Or maybe I just have gotten used to it. It has been just over 300 km on my odometer since I adjusted them.
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Post by JoeyBee on Jan 29, 2015 12:20:58 GMT -5
First it should be .004 - .005 inch. Most people do .004inch intake, .005 exhaust. I have seen other swear by .003inch intake, .004inch exhaust. Once you get the process down its very easy to determine what your scoot likes.
Next is TDC. When turn the flywheel it should line up with the T mark. Sometimes it's a hair off but that's okay. The biggest thing with the 150s is only turn clockwise. NEVER EVER turn it counterclockwise when adjusting the valves. Even the smallest movement counterclockwise will cause the cam stopper to engage and cause the adjustment to not stay. That may be what's happening to you.
I'm sure some of the veteran members here have tips to ensure your are TDC. It took me 5 or 6 times to get the adjustment correct. Now I can do it in 10 minutes flat.
And a slight ticking is a good thing. But very light ticking. Once the ticking stops, that means you should adjust them again. From factory they don't tick. But that is because the valves are set to about 0.0 to keep the EPA happy.
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Post by JoeyBee on Jan 29, 2015 11:47:27 GMT -5
What lash clearance did you use?
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Post by JoeyBee on Jan 26, 2015 20:18:05 GMT -5
 Carrot Top |
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Post by JoeyBee on Jan 26, 2015 7:16:19 GMT -5
The problem I have with mine only occurs when my battery is low "which has again been often ". When I'm hooked up to a 10a charger or being jump from a car it turns over and starts with no problem , however one of the cdi's u mention will probably cut it out all together. I ordered the advancing one from John last night. I'll update the tread with results when I get it. |
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New Dawg Map
by: JoeyBee - Jan 25, 2015 23:10:00 GMT -5
via mobile
Post by JoeyBee on Jan 25, 2015 23:10:00 GMT -5
I'm in.
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Post by JoeyBee on Jan 25, 2015 22:55:59 GMT -5
Why so early on the BBK? We're you having engine problems that soon? My commute to work is about 4 miles with the highest speed limit of 45. So my 150cc has power to spare.
As for CDIs, hard starting with advanced timing CDIs was the reason I have been avoiding them. Plus the tests I have seen with them showed no noticeable gains, only causing starting problems. However, advancing the timing only in higher RPMs sounds like a solid concept.
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Post by JoeyBee on Jan 25, 2015 22:32:04 GMT -5
Good decision, Joey! I might be wrong, but the "slamming to a stop" of the engine during starting was pretty damned worrisome to me. Thought at any moment the whole thing might just snap. And, maybe the violent halt contributed to the early demise of my 60mm BBK ..... dunno. Anyway - tvnavman isn't yet paying me, so I have NO RESPONSIBILITY in case you are disappointed! But I'm pretty damned sure you will be thrilled! I was --- and seriously --- if I had to choose between a sensible variator and this CDI I'd go first with the later. No worries, I'm not expecting significant gains. A BBK is far down the road since my scooter is only a couple months old. I have been planning on switching out the cheap stock ignition parts for better quality parts. But quality is more of a consideration over claims of being "performance" or "extra hot". |
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Post by JoeyBee on Jan 25, 2015 22:17:27 GMT -5
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Post by JoeyBee on Jan 25, 2015 22:11:52 GMT -5
Thanks guys, I'll try and get some better pictures up of all the weird mounting, took it for a spin today and did quite well! Rode quite smooth around 50 mph Most of the day. I am having a issue with the RPM gauge, where would I hook up a electronic RPM? I assume around the cdi? I don't really want to go tapping around and blow the module.  ? if anyone knows what wires I can tap into to get a RPM signal? Thanks! A past thread had identified the red with white strip as the signal wire. I hope this helps. scooterdoc.proboards.com/thread/10528/new-digital-speedo-installed |
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Post by JoeyBee on Jan 25, 2015 21:59:56 GMT -5
rcq92130 Thank you for the recommendation and great explaination. Ignition moding was next on my list since my carburetor and CVT are in tune. tvnacman I hope you have these in stock. I'm ordering one tonight.
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Post by JoeyBee on Jan 24, 2015 6:50:34 GMT -5
The buckets of Chem dip they sell at auto parts stores and wal-mart may work very well.  |
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Post by JoeyBee on Jan 24, 2015 0:58:44 GMT -5
A gravity feed system has a line straight from the tank to the carburetor. No petcock involved.
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