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Post by ohdanny on Mar 14, 2015 20:57:14 GMT -5
Hi, my scooter already stopped wile driving four times, on hot days.
This fourth time, it wont start any more.
The Spark plug looks a little old but good I believe, I filed electrode and re gap.
I can turn CVT pulleys by hand, I guess engine is not locked.
Please... any guidance? thank you.
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Post by humanshield on Mar 14, 2015 21:16:59 GMT -5
Compression test time
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Post by 90GTVert on Mar 14, 2015 21:44:19 GMT -5
Check for spark. Check compression. Make sure it's getting fuel.
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Post by niz76 on Mar 14, 2015 21:46:03 GMT -5
Sounds like you may have damaged the cylinder to the point of low compression and no-start. A compression check will give a good indication of the state of the cylinder. You'll want to pull the cylinder off and have a look after any overheat "soft seize". Sounds like it's not jetted properly??
I have warped a head before overheating an engine. The head gasket wouldn't seat properly after that and had to constantly tighten the cylinder head nuts to have high enough compression to start it...
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Post by ohdanny on Mar 14, 2015 22:32:06 GMT -5
OK. Thank you guy's. I'm going to check for spark now
I will then test the compression once I get a hold of the tool.
Also, small leaking somewhere from oil pump.
I am suspecting a clogged oil tank to, as oil has not gone down as much as normal (if any)
I have some gas in the air filter.
(I know, poor scooter... anyone wants to buy it?)
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Post by Fox on Mar 14, 2015 22:43:26 GMT -5
Sounds like the oil pump stopped pumping. Too little oil/no oil = repeated soft seizingfollowed by engine/piston/ring damage.
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Post by Jwhood on Mar 19, 2015 20:29:15 GMT -5
I'll tell you like I told several other guys be ready for headaches cause these Tgb scoots will give you one,ask me how I know,cause I have 2 and my brother has had 4 or more so I have had my fair share of migraines
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Post by ohdanny on Apr 19, 2015 22:37:54 GMT -5
 I'm back. I skipped the compression test. Cylinder head bolt didn't look equally tight Gaskets looked bad |
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Post by niz76 on Apr 19, 2015 22:47:39 GMT -5
Yep- no compression. Time for a new piston! Is the cylinder trashed too?
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Post by Jwhood on Apr 19, 2015 22:56:00 GMT -5
I have a kit if interested its a 47.6 mm bbk kit I'll sell for $60 + shipping let me know,sorry to hear the bad news
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Post by ohdanny on Apr 19, 2015 23:32:00 GMT -5
Yep- no compression. Time for a new piston! Is the cylinder trashed too? Cylinder is rusty an seized inside yep |
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Post by ohdanny on Apr 19, 2015 23:39:06 GMT -5
I have a kit if interested its a 47.6 mm bbk kit I'll sell for $60 + shipping let me know,sorry to hear the bad news Yes I am, would this fit mine?  What carburetor should I get in combination with that BBK and my Leo Vince Handmade ZX exhaust, + stock variator? I was thinking of going stock for not to damage the crank. |
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Post by Jwhood on Apr 20, 2015 0:03:31 GMT -5
Yes I have a few Tgb scooters,I had bought for myself but switched to liquid cooled so I don't really need it now,get a dellortto clone on eBay 19mm or 21mm for like $35 (that is a carb) and a decent pipe and you should be good to go!!!
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Post by ohdanny on Apr 23, 2015 20:04:40 GMT -5
Yes I have a few Tgb scooters,I had bought for myself but switched to liquid cooled so I don't really need it now,get a dellorto clone on eBay 19mm or 21mm for like $35 (that is a carb) and a decent pipe and you should be good to go!!! What brand is your BBK? it seems to cheap, is it used? tanks. I already ordered: Dellorto PHBG DS Black 21mm Racing Carburetor (Clone) |
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Post by Jwhood on Apr 23, 2015 20:39:05 GMT -5
Taiwanese brand just trying too help you out since I don't need it now,just opened not used brand new kit!!!!
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