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Post by seven on May 17, 2014 16:01:12 GMT -6
My 150cc GY6 came with a YTX5-BS battery. It is really 4Ah and 50 CCA. (Cold cranking Amps)
I replaced it with a YTX9-BS which is 8Ah and 120 CCA. More than double the energy available for starts.
The YTX9-BS is 1/2" taller, but it should fit in your Jonway. Measure first of course. The other dimensions are the same.
The larger capacity battery made all the difference in the world. The scooter starter motor spins like a top and the engine starts immediately. No more cranking it several times to start it anymore.
You can find the YTX9-BS on eBay for $23.50 with free shipping. It arrives in 2 business days in the U.S.
If your problems are not resolved by the earlier suggestions, you may want to consider the higher capacity battery.
A Battery Tender Jr. will keep any motorcycle or scooter battery alive for much longer. It cost about $25 and will save your battery safely, even in long term storage. |
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New Student
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Joined: May 17, 2014 12:54:36 GMT -6
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Post by seven on May 17, 2014 13:53:24 GMT -6
These are the things I ended up replacing on my 150cc GY6. I wish I had done them all at once.
It is the standard list:
1. Gas lines - remove and replace with Goodyear brand
2. Vacuum line - same
3. Petcock - remove vacuum controlled petcock and replace with manual petcock with reserve.
4. Spark plug - replace with NGK
5. Spark plug wire - replace with higher quality cable
6. Coil - replace with higher quality coil
7. Carburetor - replace with good Japanese carb.
8. Battery - remove YTX5-BS and replace with a YTX9-BS to eliminate starter issues. 55 CCA vs. 130 CCA.
9. Fuel Filter - replace with a clear view filter from a major brand.
Once these things were done I could start looking at improvements, like a phone charger, and theft recovery GPS unit.
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