Smoking g2

Mdesbrou · 06-19-2017, 07:52 PM

I have an 85 g2 with rebuilt motor from Yamaha ( 5 yrs ago). Just replaced vacume lines, fuel pump & carb. Runs great but it just started smoking blue smoke like a yard fogger!! The pvc broke so it's not installed !! Is this my issue?? Any ideas?? Thanks

sho305 · 06-19-2017, 09:14 PM

I don't know what the pvc is, there is 3 lines to the rocker cover, one is by (past) the fuel pump, one from the rear of the block under the muffler, one to the airbox. Make sure its not pumping oil into the airbox, only put 1 qt of oil in them that is full. Make sure your float is not sticking and filling the oil with gas. Normally they wear out and the oil ring goes bad and they start to burn oil, but they still run ok because the compression rings still work. But if the oil gets overfilled via people or gasoline they can also burn oil. If it was rebuilt it should be fine in 5yrs, unless they tossed rings in maybe not but that is not a full rebuilt really. Dealer here said they bored them.

Mdesbrou · 06-20-2017, 02:26 PM

Quote:

Originally Posted by sho305

I don't know what the pvc is, there is 3 lines to the rocker cover, one is by (past) the fuel pump, one from the rear of the block under the muffler, one to the airbox. Make sure its not pumping oil into the airbox, only put 1 qt of oil in them that is full. Make sure your float is not sticking and filling the oil with gas. Normally they wear out and the oil ring goes bad and they start to burn oil, but they still run ok because the compression rings still work. But if the oil gets overfilled via people or gasoline they can also burn oil. If it was rebuilt it should be fine in 5yrs, unless they tossed rings in maybe not but that is not a full rebuilt really. Dealer here said they bored them.

Did oil change, added one quart. No fuel in oil, no oil in air box . Assuming it just the rings?? Thanks

06-19-2017, 07:52 PM	#1
Mdesbrou Not Yet Wild Join Date: Jun 2017 Posts: 2	Smoking g2 I have an 85 g2 with rebuilt motor from Yamaha ( 5 yrs ago). Just replaced vacume lines, fuel pump & carb. Runs great but it just started smoking blue smoke like a yard fogger!! The pvc broke so it's not installed !! Is this my issue?? Any ideas?? Thanks
Mdesbrou Not Yet Wild Join Date: Jun 2017 Posts: 2

06-19-2017, 09:14 PM	#2
sho305 Vegas modded 420 Join Date: Jun 2009 Location: West MI Posts: 15,445	Re: Smoking g2 I don't know what the pvc is, there is 3 lines to the rocker cover, one is by (past) the fuel pump, one from the rear of the block under the muffler, one to the airbox. Make sure its not pumping oil into the airbox, only put 1 qt of oil in them that is full. Make sure your float is not sticking and filling the oil with gas. Normally they wear out and the oil ring goes bad and they start to burn oil, but they still run ok because the compression rings still work. But if the oil gets overfilled via people or gasoline they can also burn oil. If it was rebuilt it should be fine in 5yrs, unless they tossed rings in maybe not but that is not a full rebuilt really. Dealer here said they bored them.

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