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Old 01-12-2010, 07:30 PM   #1
JG5 OP
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yamaha jog starting problem, help!

hey so i found a 1990 yamaha jog for a decent price, when i contacted the guy he said it would start but when i went to pick it up he couldnt get it started. so when i got home i installed a new spark plug and checked the compression, so i tried to kick start it but it wouldnt work i tried the electric start but all i heard was a buzzing sound and a few times it almost turned over. so what should i do? any help would be greatly appreciated
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Old 01-12-2010, 08:02 PM   #2
Quickv4
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Location: Dickinson, Nort' Dakohtah- Orig. from Wiscowsin
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Dirty Carb, Dirty Carb, Dirty Carb, Dirty Carb

Take apart, clean it really good, adjust everything to base settings, ride...




Its really easy to clean, My former Razz took about a hour to disassemble/reassemble, HOWEVER, I did have the stripped carb body soaking in a gallon can of carb cleaner overnight.

If you need any other help, just post up...
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Great forum and Resource for 1st and 2nd gen Honda V4s SabMagIntercept


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Old 01-12-2010, 09:05 PM   #3
pennintj
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Quote:
Originally Posted by JG5
hey so i found a 1990 yamaha jog for a decent price, when i contacted the guy he said it would start but when i went to pick it up he couldnt get it started. so when i got home i installed a new spark plug and checked the compression, so i tried to kick start it but it wouldnt work i tried the electric start but all i heard was a buzzing sound and a few times it almost turned over. so what should i do? any help would be greatly appreciated
Sounds like the battery is low or dead for starters. Try charging the battery and see if it will crank.

Tom
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Old 01-12-2010, 09:52 PM   #4
JG5 OP
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it took the carb off it looked very clean but i cleaned it again, i have no idea what the base setting are there just put to what they were before. i checked the battery and it was 11.62 volts so that should be good, i also cleaned the battery terminals. am i missing something?
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Old 01-13-2010, 12:38 AM   #5
nii
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Quote:
Originally Posted by JG5
am i missing something?
the battery should be around 12.5 volts, but the Jog will kick start even if the voltage is down.
I guess you should see if the automatic choke works. you can dismount it, apply 12 volts to the plug and see if it moves a bit with time.

try to cover the airbox intake with something (manual choke of sorts), if it starts - then change the choke or have the carb adjusted.
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Old 01-13-2010, 08:26 AM   #6
pennintj
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Quote:
Originally Posted by JG5
it took the carb off it looked very clean but i cleaned it again, i have no idea what the base setting are there just put to what they were before. i checked the battery and it was 11.62 volts so that should be good, i also cleaned the battery terminals. am i missing something?
Battery will read between 11 - 13 volts depending on how recently it was charged. Put your meter on it, hit the starter button, and if it reads under 8 volts (under load) it's bad.

Yes with a kickstart it should start, however it'll be easier to troubleshoot with it starting on the starter.

My next suggestion will be to test the auto-bystarter for failure, if your jog has one. Easiest method is to cover the airbox intake and crank the bike.

-Tom
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Old 01-13-2010, 09:44 AM   #7
30Bones
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Found a Jog locally...pretty rough for $300 and he says there is a title that was lost and the PO will sign paperwork to get it back.....
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Old 01-13-2010, 06:12 PM   #8
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i did the airbox intake test and still nothing. the first and sometimes second try of starting after letting the bike sit the engine makes a weak attempt at turning over but after that it just makes that buzzing noise
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