Ran fine then died? 97 GP1200 - PWC Forum: The best hang-out for Personal WaterCraft enthusiasts
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 18 (permalink) Old 04-20-2019, 10:32 AM Thread Starter
Member
 
jgkyle123's Avatar
 
Join Date: Apr 2018
Posts: 32
Ran fine then died? 97 GP1200

Hey Friends!

I had to take the skis for the first time this season yesterday. After doing all my checks we looked like we were ready to role!

Got to the lake and it started fine and ran great for about 30 min. Full throttle and all. Then all of a sudden when I went into a turn it just shut off. I thought that maybe my key slipped so it fired right back up. Ran for about 2-3 min then died. Now it was getting harder to start (like the battery was goin bad) but eventually it would until I couldn't start and it seemed like the battery was dead. Thankfully I typically never ride alone so I had some help getting back to shore.

Now I can't get it to start however it turns.

It was a brand new battery

Could this be an electrical issue or a carb/gas issue?

I plan on rebuilding the carbs and replacing fuel lines etc.

Thanks for any help!
jgkyle123 is offline  
Sponsored Links
Advertisement
 
post #2 of 18 (permalink) Old 04-20-2019, 11:30 AM
Senior Member
 
Dave in DE's Avatar
 
Join Date: Jul 2015
Location: slower lower Delaware,second home on lake Conesus in NY. keep a 93&94 vxr pro there.
Posts: 753
My first suggestion would be to do a compression check. Also check your bilge for oil. indicating a broken oil line. That is if your still injecting oil and not premixing. This sounds very much like a lean seizure.
Dave in DE is online now  
post #3 of 18 (permalink) Old 04-20-2019, 05:07 PM Thread Starter
Member
 
jgkyle123's Avatar
 
Join Date: Apr 2018
Posts: 32
Hey Dave!

I think you are right. I noticed that there is some oil in the bilge and with a paper towel wiped under the pump and sure enough it came back blue. Hopefully I did not cause too much damage and thankfully the pistons still move freely.

I will be replacing all the lines this week sometime.
jgkyle123 is offline  
Sponsored Links
Advertisement
 
post #4 of 18 (permalink) Old 04-20-2019, 08:46 PM
Senior Member
 
Dave in DE's Avatar
 
Join Date: Jul 2015
Location: slower lower Delaware,second home on lake Conesus in NY. keep a 93&94 vxr pro there.
Posts: 753
Quote:
Originally Posted by jgkyle123 View Post
Hey Dave!

I think you are right. I noticed that there is some oil in the bilge and with a paper towel wiped under the pump and sure enough it came back blue. Hopefully I did renot cause too much damage and thankfully the pistons still move freely.

I will be replacing all the lines this week sometime.
Unfortunately the damage is done. Right now it may still be saved with a top end service. Just replacing hoses won't do it. If the oil line broke/pulled off that cylinder is now scored and needs to be serviced before it's run again. Only a disassembly of the top end will tell how much damage is done, and what will need to to done to repair. Right now if only minimal damage was done it may be salvaged by honing that cylinder and new pistons and rings in all. If you run it more you maybe in need of a complete motor to repair. The cost of repair goes up quickly.
Dave in DE is online now  
post #5 of 18 (permalink) Old 04-21-2019, 12:11 AM Thread Starter
Member
 
jgkyle123's Avatar
 
Join Date: Apr 2018
Posts: 32
Gotcha! Here are a couple pictures of the damage. I am not an expert at all but I think i can salvage this bore?

Couple questions. I definitely want to do a good job however I would like to not do anything unnecessary.

1) Is the bore salvageable with just honing?

2) Is it worth just replacing the rings and honing out the single bore?

3) Or replacing the piston and rings on the one bad cylinder or is it just a good idea to do them all?

4) Will I have to remove the exhaust to get the Bore off in order to hone?

Any tips on this process will be great. I am somewhat excited to do a top end rebuild for the first time.
jgkyle123 is offline  
post #6 of 18 (permalink) Old 04-21-2019, 12:13 AM Thread Starter
Member
 
jgkyle123's Avatar
 
Join Date: Apr 2018
Posts: 32
Sorry! Here are the pics. I can take more once I get into it.
Attached Thumbnails
Click image for larger version

Name:	IMG_6718.jpg
Views:	16
Size:	47.0 KB
ID:	17383   Click image for larger version

Name:	IMG_6716 2.jpg
Views:	17
Size:	45.8 KB
ID:	17385   Click image for larger version

Name:	IMG_6717.jpg
Views:	15
Size:	39.9 KB
ID:	17387  
jgkyle123 is offline  
post #7 of 18 (permalink) Old 04-21-2019, 06:32 AM
Super Moderator
 
rodsatheart's Avatar
 
Join Date: Oct 2014
Location: Mena, Ar.
Posts: 4,720
Dock
Yep, your doing a rebuild. I doubt a hone will save it, but it might be worth a shot. I can check and see if Brian Everett has any good barrels, but I highly doubt it.
I was thinking that one was plated, but I guess not. Sleeves sure are thin for not being plated.
rodsatheart is online now  
post #8 of 18 (permalink) Old 04-21-2019, 08:37 AM Thread Starter
Member
 
jgkyle123's Avatar
 
Join Date: Apr 2018
Posts: 32
Okay!

Well...I am about to get my learn on. If I attempt honing first and order a new standard size piston and rings how do I go about testing? Is the only way to re assemble and do a compression test? Do i need to have the carbs/exhaust attached? Or can I just install the piston block and cover and crank the engine?
jgkyle123 is offline  
post #9 of 18 (permalink) Old 04-21-2019, 10:19 AM
Senior Member
 
Dave in DE's Avatar
 
Join Date: Jul 2015
Location: slower lower Delaware,second home on lake Conesus in NY. keep a 93&94 vxr pro there.
Posts: 753
Quote:
Originally Posted by jgkyle123 View Post
Okay!

Well...I am about to get my learn on. If I attempt honing first and order a new standard size piston and rings how do I go about testing? Is the only way to re assemble and do a compression test? Do i need to have the carbs/exhaust attached? Or can I just install the piston block and cover and crank the engine?
From the pics they don't look to bad. Old rule of thumb is if you can catch your fingernail in any given groove it's not going to hone out.
That being said, as Rods stated I can't tell if that's a sleeved cyl or plated. If it's sleeved it could always be bored. To tell if it's sleeved, clean the sealing area of the bore and look for a steal/aluminum parting line.
I would say your best bet unless you have all the inside mics to measure the bore after honing would be a cyl exchange top end kit. WSM performance has one at $635 complete. Gaskets, pistons, everything to put it back together. To properly hone it out you'll need to be able to measure the bore to make sure a STD size piston will fit without excessive clearance witch is critical to make it last any length of time.
If it's a plated bore and any scratches go through the plating it would need a sleeve or be replated. All of witch would be more than the kit.
Yes the exhaust will have to come off to hone. You don't won't the honing grit to get in the exhaust. When you hone the jug assembly will have to be thoroughly cleaned after. Before reassembly.
Personally I wouldn't do only one cyl and leave the others. But a lot would depend on motor age and condition.
I would also consider rebuilding the carbs while doing motor. This will make sure there not contributing to the lean condition.
Dave in DE is online now  
post #10 of 18 (permalink) Old 04-21-2019, 05:23 PM Thread Starter
Member
 
jgkyle123's Avatar
 
Join Date: Apr 2018
Posts: 32
What do you guys think?

From what I can tell it is sleeved...

There seems to be very minimal pitting but rather some build up from the piston. Is it possible to remove that material with a hone? Because I actually have a standard bore piston and rings.
Attached Thumbnails
Click image for larger version

Name:	IMG_6721.jpg
Views:	16
Size:	72.3 KB
ID:	17389   Click image for larger version

Name:	IMG_6722.jpg
Views:	15
Size:	51.2 KB
ID:	17391   Click image for larger version

Name:	IMG_6723.jpg
Views:	15
Size:	49.3 KB
ID:	17393  
jgkyle123 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the PWC Forum: The best hang-out for Personal WaterCraft enthusiasts forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



Similar Threads
Thread Thread Starter Forum Replies Last Post
runs fine then trouble runs restart then runs great then trouble tavis Honda Jetski 8 09-20-2015 06:07 PM
97 Monte Carlo Runs fine and then ignition ticks csimmering Tigershark Jetski 4 07-12-2012 03:21 PM
bought GP1200R , ran 30 min.'s great& died, help! Doni1200R Yamaha Jetski 11 06-13-2011 09:31 PM
97 gp1200. start fine, shuts off in 15min?? jmitch Yamaha Jetski 9 07-13-2010 04:31 PM
Runs fine up to about 5,000 RPM then cuts out SDRotax Sea-Doo Jetski 2 08-24-2008 11:49 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome