Hot!07 Yamaha Grizzly 700 FI EPS

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36racin
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2018/12/10 06:37:36 (permalink)

07 Yamaha Grizzly 700 FI EPS

Purchased the bike over a year ago. Had fouling plug issue/hard start issue..Never resolved and bike has sat for a year.  Its a 07 Grizzly 700 FI EPS DU edition with 5000+ miles on it.
Fast forward till the last few days...Finally got the valves checked and adjusted. Bike started up eventually. Rode in pasture and stopped to watch guys digging a pond. Bike would not restart. Let it sit about 30 minutes and it started up. While riding back to house the bike started acting like it was running out of gas, spitting, shuddering, backfiring and killed. Pulled bike home and let sit 20-30 min again. Didn't even make it out the yard again before it was doing the same thing again. Now I'm thinking I'm having a fuel pump problem. Bike has been a pain in my rear since day I bought it. I would like to have it running and have faith in it again. So can anyone help me out....

Few other issues I know of

1. Speedo is very erratic. Like speed sensor is not right.
2. Green start button looks like may have a short...or loose wiring. Bike doesn't turn over when button pushed(sometimes)...
3. Brake reservoirs(both) one has striped out screws and one striped and one missing on the other.


Those issues can wait until I get the bike running good and reliable. With valves just adjusted and engine sounding good(when it runs) I've seen mention on several of full service...Can someone steer me in the direction of what all needs to be done....I am already changing all fluids( already did coolant while panels were off for access) oil/filter(which oil), differential oil(which oil) What else? Thanks for all the assistance upfront....


Todd
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    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/10 06:41:57 (permalink)
    Currently bike has NO spark.  Changed several plugs and still nothing...Coil is just hanging like it came unbolted...Only other thing I've done is removing rear fender.  Found more issues...Cracked on frame and rear fender mount is broken off completely...So that's added to the list.
     
    Todd
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    00_NUTT
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/10 07:16:24 (permalink)
    Man it sounds like you didn't make the best deal. As for as the bike running then you killing it then not starting till cool again sounds like valves. Valves expand as they get hot then stick until cool again so I'd recheck the valves cause they could be too tight. No spark could be several things. Also check the decompression release system as well. Then being that your bike setup for a year plus did you drop the gas? Cause I will tell you now that the new gas is crap after it sits. I would put some seafoam in with fresh gas and let it run through!!!! No spark could be anything. If it had it before then nothing after you messed with it then it's something you might have unhooked. Next top find you a service manual as it will give you a full understanding of your electrical system.

    00_NUTT
    1997 Honda 300 4x4
    Head Ported and Polished
    317 Kit
    Big Red Cam
    Clutch Kit
    SuperTrapp IDS2 Exhaust
    K&N Filter
    Carb Kit
    32" Interco Interforce II's
    16" MSA M30 Trottles
    Snorkled 
    54% gear reduction
    Honda 350 rear axle assm.

    6" BPC CUSTOM LIFT WITH 8" STRETCH AND 3" BODY LIFT OLD 300 LOOKING GOOD AS EVER THANKS TO WHITNEY!!!!!

    SON'S BIKE
    1998 Honda 300 2x4
    6" BPC LIft with some sick a-arms
    420 spindles and disk brakes
    29.5" OL2'S
    14" MSA M26 Vibes
     
    Upcoming
    4x4 Frame and Motor that's here now just got to get to work on the swap over!!!
    54% Gear Reduction
     
    #3
    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/10 07:32:42 (permalink)
    Thanks for the reply...Thought I was buying a reliable bike from a family friend...Doesn't look like it is working out for me right now.  Valves were set to high end of allowable clearance.  Exhaust valve are tight but on upper end.  I used .005 on intake and .007's on exhaust.  Bike was exhibiting the same hard start/ plug fouling characteristics before it sat for a year.  Will recheck since all plastics except front fenders is still off.  When bike quit coming back out of the pasture it acted like it ran out of gas or a grounded out circuit somewhere.  I've looked at the wiring and don't see any open or bad wires.  Just no fire/spark.  Currently awaiting a new fuel pump and will be removing it and the internal screen.  As well as cleaning inside of the tank if there's anything in it.  Then replacing with new gas.  Just need to figure out this non fire deal.
    Todd
    post edited by 36racin - 2018/12/10 07:34:59
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/10 08:21:35 (permalink)
    I'll keep researching and see what I can find out. Also man I'd strongly suggest finding a manual.

    00_NUTT
    1997 Honda 300 4x4
    Head Ported and Polished
    317 Kit
    Big Red Cam
    Clutch Kit
    SuperTrapp IDS2 Exhaust
    K&N Filter
    Carb Kit
    32" Interco Interforce II's
    16" MSA M30 Trottles
    Snorkled 
    54% gear reduction
    Honda 350 rear axle assm.

    6" BPC CUSTOM LIFT WITH 8" STRETCH AND 3" BODY LIFT OLD 300 LOOKING GOOD AS EVER THANKS TO WHITNEY!!!!!

    SON'S BIKE
    1998 Honda 300 2x4
    6" BPC LIft with some sick a-arms
    420 spindles and disk brakes
    29.5" OL2'S
    14" MSA M26 Vibes
     
    Upcoming
    4x4 Frame and Motor that's here now just got to get to work on the swap over!!!
    54% Gear Reduction
     
    #5
    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/11 06:41:21 (permalink)
    Did some more looking around the bike today trying to figure this no fire out. Don't see any frayed or loose wires. When I saw the Dynatek FS Digital Ignition sitting there wondering if that could have went bad. Got on the Dynatek site and pulled up the installation instructions which also has a trouble shooting section. It states if its not firing and or running to disconnect the cables and put back to stock to see if it works. It also said to reconnect the orange connector back to the coil. But this stock connector does not fit on the connector on the coil. Leaving me to think this isn't the original coil either. I'll make up a connection in the morning and see if the bike will fire and then I'll know if its the digital ignition or not. Hopefully I can get the frame welded tomorrow as well.
    #6
    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/11 09:57:22 (permalink)
    Looks like it was the digital ignition!!! Removed it, reconnected back to stock...Got spark, fired right up... Idle is alittle low but eventually warmed up. So bike came with this digital ignition...Is it needed? All I really will use the bike for is trail riding and hunting. Hunting mostly... My EPS light wont go off so I'll have to check that out. Time to clean out tank, replace screen and some fresh gasoline.

    Todd
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    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/11 15:49:55 (permalink)
    Bike still doing ok. Have about 10 miles on it. Starts and restarts like it should. Digital ignition is removed(it was already disconnected). Removed the fuel tank, drained varnished fuel and cleaned out tank(it was pretty bad). Replaced the filter and reinstalled. New 100% gasoline and she is running pretty good. Time to drain all oils and replace with new and put bike back together

    Todd
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/11 17:50:19 (permalink)
    Man I'd say trash that digital ignition and leave it factory. Probably someone before you was looking for a little more power. Glad it was something not super crazy. They say the bike is very reliable so hopefully you will be able to enjoy it once you get it welded up!!!

    00_NUTT
    1997 Honda 300 4x4
    Head Ported and Polished
    317 Kit
    Big Red Cam
    Clutch Kit
    SuperTrapp IDS2 Exhaust
    K&N Filter
    Carb Kit
    32" Interco Interforce II's
    16" MSA M30 Trottles
    Snorkled 
    54% gear reduction
    Honda 350 rear axle assm.

    6" BPC CUSTOM LIFT WITH 8" STRETCH AND 3" BODY LIFT OLD 300 LOOKING GOOD AS EVER THANKS TO WHITNEY!!!!!

    SON'S BIKE
    1998 Honda 300 2x4
    6" BPC LIft with some sick a-arms
    420 spindles and disk brakes
    29.5" OL2'S
    14" MSA M26 Vibes
     
    Upcoming
    4x4 Frame and Motor that's here now just got to get to work on the swap over!!!
    54% Gear Reduction
     
    #9
    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/11 20:10:12 (permalink)
    00_NUTT
    Man I'd say trash that digital ignition and leave it factory. Probably someone before you was looking for a little more power. Glad it was something not super crazy. They say the bike is very reliable so hopefully you will be able to enjoy it once you get it welded up!!!

    Bike all welded up.  Digital ignition module already disconnected.  Bike has ran better that it has since I've had it.  Will change oil in motor and diffs in the morning.  EPS system has an error.  Will have to look into it as well.  Once all serviced I'll start putting bike all back together again.
     
    Thanks for the replys
    Todd
    post edited by 36racin - 2018/12/11 20:12:56
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/11 20:19:49 (permalink)
    No problem. I glad you got it going and now you can enjoy it!!!

    00_NUTT
    1997 Honda 300 4x4
    Head Ported and Polished
    317 Kit
    Big Red Cam
    Clutch Kit
    SuperTrapp IDS2 Exhaust
    K&N Filter
    Carb Kit
    32" Interco Interforce II's
    16" MSA M30 Trottles
    Snorkled 
    54% gear reduction
    Honda 350 rear axle assm.

    6" BPC CUSTOM LIFT WITH 8" STRETCH AND 3" BODY LIFT OLD 300 LOOKING GOOD AS EVER THANKS TO WHITNEY!!!!!

    SON'S BIKE
    1998 Honda 300 2x4
    6" BPC LIft with some sick a-arms
    420 spindles and disk brakes
    29.5" OL2'S
    14" MSA M26 Vibes
     
    Upcoming
    4x4 Frame and Motor that's here now just got to get to work on the swap over!!!
    54% Gear Reduction
     
    #11
    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/13 10:50:46 (permalink)
    Bike still running and starting good. Found another aftermarket item on the bike yesterday. A procom ECU. Programable with a computer and the software. Anyone use these? Should I get the software and see what settings this thing is on? Otherwise all fluids are changed. Rotella T6 Synthetic oil. Wix 51538 filter, Lucas Synthetic gear oil and Catapillar ELC coolant. The front diff was like mud colored molasses so I will get bike warm and drain that one again. Frame and rear fender mount all welded back up. Time to start putting this bike back together.

    Bike has a KN type air filter...Leave it or replace it with stock type? Or can I add a stock type on top of the KN filter like a prefilter?
    post edited by 36racin - 2018/12/13 11:19:38
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    00_NUTT
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/13 11:49:57 (permalink)
    Man if it's running good I'd let well enough be. I would get the software just to have and backup the settings. The k&n is fine I'd just put the k&n Drycharger Filter Wrap on it. On your diff you can also put some diesel in it to help cut the crude out and drain a little easier.

    00_NUTT
    1997 Honda 300 4x4
    Head Ported and Polished
    317 Kit
    Big Red Cam
    Clutch Kit
    SuperTrapp IDS2 Exhaust
    K&N Filter
    Carb Kit
    32" Interco Interforce II's
    16" MSA M30 Trottles
    Snorkled 
    54% gear reduction
    Honda 350 rear axle assm.

    6" BPC CUSTOM LIFT WITH 8" STRETCH AND 3" BODY LIFT OLD 300 LOOKING GOOD AS EVER THANKS TO WHITNEY!!!!!

    SON'S BIKE
    1998 Honda 300 2x4
    6" BPC LIft with some sick a-arms
    420 spindles and disk brakes
    29.5" OL2'S
    14" MSA M26 Vibes
     
    Upcoming
    4x4 Frame and Motor that's here now just got to get to work on the swap over!!!
    54% Gear Reduction
     
    #13
    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/13 12:45:21 (permalink)
    00_NUTT
    Man if it's running good I'd let well enough be. I would get the software just to have and backup the settings. The k&n is fine I'd just put the k&n Drycharger Filter Wrap on it. On your diff you can also put some diesel in it to help cut the crude out and drain a little easier.

    What is a drycharger filter wrap?  Ill look it up....And I did flush with alittle diesel yesterday.  Just didn't want to run diff with it in it.  I'll see what it looks like this time I drain
     
    Thanks
    Todd
    #14
    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/24 14:01:14 (permalink)
    Didn't see a drycharger filter wrap to fit over this K&N filter.  Without changing everything back to stock or Uni filter and base I bought a stock filter and just put it on top of the K&N.  Looks like it's working well.  Bike it running better than ever.  Bike going back together nicely.  Amazing how many bolts and fastners were removed off the bike from previous owners.  Finally figured out the rear brake problem.  Thought I had a bad brake line but ended up being air in the lines.  Someone had removed one of the copper crush washers on the right rear and it was grabbing air and leaking some.  Had to remove both rear wheels and get wife to help me bleed them.  Now have rear brakes(alittle)  May have to bleed somemore.  Not getting as much brake on back as I am the front...Awaiting some screws, bolts and other minor items. 
     
    Thanks for the assistance,
    Todd
     
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/24 14:35:18 (permalink)
    Man that's great. I buy many spare plactic fastners from Amazon. You can get them by the bags full for cheap. Also look at harbor freight for a vacuum brake bleeder. It may be call mighty Max and works like a champ. Anytime you need something just give a yell and I'll try to help as much as possible.

    00_NUTT
    1997 Honda 300 4x4
    Head Ported and Polished
    317 Kit
    Big Red Cam
    Clutch Kit
    SuperTrapp IDS2 Exhaust
    K&N Filter
    Carb Kit
    32" Interco Interforce II's
    16" MSA M30 Trottles
    Snorkled 
    54% gear reduction
    Honda 350 rear axle assm.

    6" BPC CUSTOM LIFT WITH 8" STRETCH AND 3" BODY LIFT OLD 300 LOOKING GOOD AS EVER THANKS TO WHITNEY!!!!!

    SON'S BIKE
    1998 Honda 300 2x4
    6" BPC LIft with some sick a-arms
    420 spindles and disk brakes
    29.5" OL2'S
    14" MSA M26 Vibes
     
    Upcoming
    4x4 Frame and Motor that's here now just got to get to work on the swap over!!!
    54% Gear Reduction
     
    #16
    36racin
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/29 08:36:55 (permalink)
    I do like a reason for buying new tools.  And love Harbor Freight...especially since there is one half mile from my house....Bike is back together and running good....With the exception of a needing a new winch its ready to ride...The rear brakes are not working as good as I think they should.  Ordered a master cylinder repair kit... It's amazing how many small bolts, rivets and other pieces were removed from the bike over the years. Bike has 30" Silverbacks on it. I'd rather go with a smaller tire...Maybe I can find someone locally to swap tires with. Thanks for all the help guys....I'm sure I'll need more...I have three bikes
     
    Thanks for all the assistance
    Todd
    #17
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    Re: 07 Yamaha Grizzly 700 FI EPS 2018/12/29 09:14:08 (permalink)
    Your welcome my friend and hope you enjoy. Post those tires up on bookface and I'm sure they will be gone as soon as you finish typing

    00_NUTT
    1997 Honda 300 4x4
    Head Ported and Polished
    317 Kit
    Big Red Cam
    Clutch Kit
    SuperTrapp IDS2 Exhaust
    K&N Filter
    Carb Kit
    32" Interco Interforce II's
    16" MSA M30 Trottles
    Snorkled 
    54% gear reduction
    Honda 350 rear axle assm.

    6" BPC CUSTOM LIFT WITH 8" STRETCH AND 3" BODY LIFT OLD 300 LOOKING GOOD AS EVER THANKS TO WHITNEY!!!!!

    SON'S BIKE
    1998 Honda 300 2x4
    6" BPC LIft with some sick a-arms
    420 spindles and disk brakes
    29.5" OL2'S
    14" MSA M26 Vibes
     
    Upcoming
    4x4 Frame and Motor that's here now just got to get to work on the swap over!!!
    54% Gear Reduction
     
    #18
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