Motor Locked up from sitting so long.

[snyper316]

I Haven't made any post in a while, been kinda watching 2 builds go on in the forum. One of the builds posted an ad from craiglist and it was way too good of a deal to pass up! Granted I have parts and such I have 3 motors that are locked up. Two of which had the boxes on them. These 2 some how had water sitting in the carbs so I am a little dumbfounded by that. They were litterally out in the woods, now i know these motors are bulletproof! Unfortunately the motors are froze stiff. I don't even know if the motors would be worth trying to free them up. Not even sure how to really go about it except for putting oil in the Cylinders. I flipped one upside down today to the water out of the top side. I also was looking at possibly putting a 99 motor in one of the frames. Would a 99 fit or bolt up? I know the exhaust is different and some other things are different. Just curious if it could be done. Another possibility would be getting a Vmax motor and putting that in. I saw these 3 bikes and thought of my chopper build, I just could not bring myself to tare down Tinker. She is a damn good bike. these bikes as far as plastics good there is only one set of saddle bags and a tour pack that was salvageable the rest of the plastics are brittle and no good. So now I am asking what you all would do.... also I got a bit of trivia for you guys to check out and see if you know what it is!

 

 

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Edited June 26, 2019 by snyper316

[snyper316]

[Wrecit]

There are several "quick fixes" to seized engines but imo a locked up power plant needs to be broken down at least to hone the cylinder (assuming the lock up is due to piston/rings)

 

Though this sounds daunting and next to imposible to some (if not many) if you have a basic understanding of mechanics doing a basic rebuild is not that hard. 1 suggestion is video the dismantle. This video can be used as refrence if you get stuck or confused on putting it back together. Youtube is your friend. While I doubt there is a video "tearing down a 1986 yamaha venture engine" there are any number of videos on most all aspects of an engine from syncing carbs to shimming valves.

 

Some work does require tools you do not have and are to expensive to buy. Find a local machine shop for things like trueing decks and boring cylinders (if they are badly damaged the up side would be bigger pistons/bigger displacement lol)

 

If nothing else it can be an amazing learning experience. You currently got 2 yamaha boat anchors. Have some fun and play with them and you might end up with a serious power plant.

 

Btw I knew nothing about engines and 2 years later teaching myself I built a 78hp kart racing engine if I can do it then it is far from rocket science

[snyper316]

There are several "quick fixes" to seized engines but imo a locked up power plant needs to be broken down at least to hone the cylinder (assuming the lock up is due to piston/rings)

 

Though this sounds daunting and next to imposible to some (if not many) if you have a basic understanding of mechanics doing a basic rebuild is not that hard. 1 suggestion is video the dismantle. This video can be used as refrence if you get stuck or confused on putting it back together. Youtube is your friend. While I doubt there is a video "tearing down a 1986 yamaha venture engine" there are any number of videos on most all aspects of an engine from syncing carbs to shimming valves.

 

Some work does require tools you do not have and are to expensive to buy. Find a local machine shop for things like trueing decks and boring cylinders (if they are badly damaged the up side would be bigger pistons/bigger displacement lol)

 

If nothing else it can be an amazing learning experience. You currently got 2 yamaha boat anchors. Have some fun and play with them and you might end up with a serious power plant.

 

Btw I knew nothing about engines and 2 years later teaching myself I built a 78hp kart racing engine if I can do it then it is far from rocket science

 

I can't remember the guys name but I bought the 2 DVD or Cds from the guy who did the Vmax carb and motor rebuild so I have those. I actually have 3, the one that was totally exposed to the elements I knew Was or suspected to be froze up. The funny thing with that one everything appears bone dry... but I havent done much with it as the steering is locked straight on it.

[snyper316]

Just Hoaning the cylinder walls would also be good time to fix second gear, altho there is one bike that has 74.000 on it and the second gear is there... oddly enough, I thought they went at around 20-40,xxx miles.