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  1. J

    JD4100 replacement bulb for ROP bar flashers

    Is the bulb for these 1156 or 1157? (Bulbs I pulled out have no numbers on them.) I want to swap them out with LED bulbs. Thanks.
  2. J

    Land Pride or Frontier rear grader blade... which is best???

    Looking at picking up a lightly used rear grader blade for light earth terraforming and occasionial snow removal. I've found a couple of nice examples not too far from me. One is a Land Pride, the other is a Frontier. The only clear advantage I can see of one over the other is that the...
  3. J

    Chevron (bar/tractor) tread too abusive to grass. Have to swap. :-/

    Well gang, after almost a whole summer with the 930D I confess that I am in LOVE with this machine!:licking: It has surpassed all of my expectations. I can mow practically wide open (10-12mph) and still get an amazingly manicured cut. Fuel consumption is noticeably less - even with another 9...
  4. J

    genuine GH dealer service manuals online ???

    I'm trying to find an online copy of the complete service/shop repair manual for my 2014 GH 930D. I'd rather do some of the simpler stuff myself, but would still prefer a manual to guide me through things. Anyone know where I could download one? I've done some searches trying differenct...
  5. J

    Burned up about burnt up PTO belts!

    OK. Quick question... Recently bought a beautiful new (to me) mower and in its first 2 mowings I've smoked 2 sets of PTO belts. Everything on this mower has just been serviced - by me. All fluids, filters, grease fittings plus a fresh set of factory blades... so the culprit isn't any of these...
  6. J

    Anyone upsized their wheels from 10" to 12" ???

    Newer 900 series GH mowers use 12" wheels. Older units run 10". So, anyone ever swapped or upsized? Just wondering if there are any fitment issues. I would like a set of 'winter' wheels with bar tread and 12" rims have a much bigger variety of manufacturers & styles to choose from than 10"...
  7. J

    ATV/UTV bling wheels on a lawn/garden tractor?

    Anyone out there spiffed up their tractors by replacing stock steel rims with stylish aluminum rims like those on many ATVs and UTVs out there? I was thinking about swapping out my summer rims with a set of aluminum units but have been unsuccessful finding rims in the right size/width... and...
  8. J

    aftermarket roofs/sunshades for garden tractors & mowers?

    Been mulling over the idea of adding a sunroof to my ZTR. There are a TON out there and, of course, everyone says theirs is The Best. The one I keep coming back to is RhinoHide. Anyone own one of these - or any other brand??? I am very curious. I gravitate towards RhinoHide mainly because...
  9. J

    time to upgrade

    Proud owner of a 721D for the last eight years. The other afternoon I was out mowing when I had the housing on the right side Gemini wheel motor take a dump. Luckily I was able to get it repaired by a local shop but after conferring with their parts guy and couple of other GH parts places in my...
  10. J

    Any ideas what's causing this (it's killing my grass) ...and how to reverse it???

    Snow finally melts away... and within a few weeks this starts growing/happening to my lawn: Never had (or even seen) anything like this before. Not sure what the holes are. Wife thinks it's insects; I'm wondering if they're caused by birds digging for insects/food. (I dropped a quarter...
  11. J

    What to do when our obsolete Gemini drives give up the ghost?

    I was told by the local GH dealer that the Gemini final drives are no longer being made and new ones in the box are about gone from GH inventory. I have a 1997 721D with these older units. Any idea if different drive motors can be transplanted ...or are we older, Gemini-powered GH owners out of...
  12. J

    Pole barn? >>>questions & advice

    Looking to put up a pole barn sometime this summer/Fall. My wife & I measured everything we currently have in our garage, sitting outside or what we want and/or plan to put in the pole barn and then drew blocked "paper dolls" on graph paper and lined them up, with approx. 3feet between...
  13. J

    glow plugs for 721D ???

    Dumb brainfart-type question, but does the 721D diesel engine utilize "traditional" glow plugs to start? I wonder because I cannot see a 120v grounded plug to pre-heat them, like I used to have on my diesel truck. If this mower does use glowplugs then it may be time to get new ones... I tried...
  14. J

    replacing air deck tires with flat free

    Both of deck frame tires on the 72" mower I have are losing air and require pumping with every mow and the diamond tread is about worn off. I searched and found Marathon Flat Free Tires thru Northern Tool. The stock tires are 4x10 and these are 3.5x9 so I hope that won't screw up the cut...
  15. J

    anybody have a dethatcher for their front mount GH???

    I've got a spiked/aereating lawn roller that I've already been able to put to use this spring. Clearing out the mat of old lawn clippings is my next step. I have a 2-section, 48" pull behind spike drag that would work but I don't want to damage the grass too much, so I was thinking the...
  16. J

    aluminum wheels (?) & winter tire questions

    Wanted to ask if anyone out there knows if there are aluminum wheels available to fit the Grasshopper? I've looked at a lot of ATV wheels, many of them very sharp-looking, but I can't find any that are the right size (8x6 with a 5x4.5" bolt pattern). Any help would be greatly appreciated. I am...
  17. J

    best tire pressure for winter snowclearing

    OK, so I am doing pretty good with my snow thrower, but I am wondering if it is better to have the tires aired down or to inflate them so that they are firm? What works best for you guys?? Any mix between front and rear set up or do you run all tires firm/all soft, etc.? BTW... I have the bar...
  18. J

    FINALLY... go to use my snowthrower! WooHoo!!!

    I plunked down $1200 for the 48" GH snowthrower for my '97 721D back in 2011, and it sat hooked up & ready to go - and unused - thru the past two very mild winters. I was beginning to think I had wasted some major money. Well, this winter so far has had some of the heaviest snowfall in the past...
  19. J

    TIRES? 1) grippy yet turf-friendly mowing? 2) best traction for winter snowthrowing?

    I currently have the chevron/bar-tread drive tires on my 721D but would like something more turf-friendly during mowing season that still has good grip for sidehill mowing. I have a set of Carlisle All-Trail tires on my GT235 JD and wondered if anyone has these on their 'Hopper??? Also...
  20. J

    Modifying old steel discharge shield mount to newer plastic style shield

    Just wanted to put this up here for owners of older G'Hoppers with the heavy steel grass discharge shields. I knew the one that came on my 72" would only get beaten up even worse than it already was, so I removed it... but I still wanted something to keep debris from flying and possibly causing...
  21. J

    Modifying old steel discharge shield mount to newer plastic style shield

    Just wanted to put this up here for owners of older G'Hoppers with the heavy steel grass discharge shields. I knew the one that came on my 72" would only get beaten up even worse than it already was, so I removed it... but I still wanted something to keep debris from flying and possibly causing...
  22. J

    Users of Oregon "Gator" type blades... any contact/impact problems???

    Since buying my used '97 721D a few years ago, I have experimented with the various styles of blades. It came with a set of mid-lift blades and I wasn't too impressed. I tried low/contour and hi-lift blades and again... OK, but nothing to rave about. This season I picked up a set of the...
  23. J

    last night 721D wouldn't shut-off, today it lost power & died, now it won't re-start

    last night 721D wouldn't shut-off, today it lost power & died, now it won't re-start Title about sums it all up. Never had running/shut off probs before this. Pulled into the garage last night, turned the key to off and it just kept running. I briefly spun the key right to "Start" and then...
  24. J

    G'hopper 72" deck grease zerk question

    For Grasshopper owners who have a 72" mower deck... is there supposed to be a grease zerk fitting on the drive spindle of the rear center (the one closest to the operator's foot rest) drive spindle/pully??? There appears to be an opening for one, but mine has what looks like a small plug in it...
  25. J

    Hints to replace alternator/fan/PTO belt ???

    My alt/fan/PTO belt shredded (I think it was the original) this past weekend. I got a new one from my dealer ($10) but would appreciate some advice on the best way to get the PTO apart to install the belt. Don't want to do more work than needed nor damage anything in the process. Any help is...
  26. J

    charging/starting troubles

    Hi gang. Been mowing along with no troubles so far this season... however the last couple of times I noticed the battery light coming on & staying on. The battery was just replaced mid-summer last year, so I doubt that it has gone south already. When I climbed on tonight to mow, it wouldn't...
  27. J

    Shhh... be quiet!

    One of the basic improvements that I wanted to make to my newly-acquired GH 721D was to make it as quiet as possible. Luckily, I happened to have 2 good-sized pieces of Dynamat sound/heat absorbing material sitting in my garage that was leftover from a Jeep hood project. I took one of the...
  28. J

    frontmount tractor attachments - anyone here got 'em?

    Just wondering if any GH frontmount mower owners on this board also happen to have any of the GH attachments for their tractors?? I'm particularly interested in the Little Bully Dozer Blade, Snow Thrower and the AERO-vator. Would love to hear any and all comments, pros/cons, etc. TIA
  29. J

    Question: adjustment of steering levers

    I notice that when going forward if I take both hands off the levers simultaneously they both return to a home/neutral position, but not at the same speed; the left pops back into neutral rather quickly whereas the right just sort of slowly "drifts" back, and it doesn't seem to slip as...
  30. J

    Anyone ever tour the Grasshopper manufacturing facility?

    My folks retired and settled in east central Kansas several years ago. I just bought a nice, used 721D and I was kind of curious, since I knew they were built out there. Well, it turns out that the folks are only about 90 minutes from the GH factory in Moundridge. I had planned to go out and...
  31. J

    proper oil type & amount for 721D?

    Last thing on my "to-do" list for this mower is to change the engine oil & filter. The PO is still digging for the GH manuals (buried in a storage unit), so I need the proper amount & type/wt. for the Kubota diesel engine. I plan to put some Seafoam in the crankcase, do 1 mowing, then change...
  32. J

    aftermarket seat on frontmount?

    I am wondering if anyone has installed an aftermarket seat on their Grasshopper? I put a very nice cordura fabric seat on my amphibious ATV a couple of years ago that I picked up from Tractor Supply and it is super comfy: Premium High-Back Seat, Cordura - 0278239 | Tractor Supply Company To...
  33. J

    Upgrades & improvements

    I have finally finished up the cleaning/detailing on my recent used 721D purchase. Now, I have been going over the entire mower, upgrading where I can to make things better or fix what, IMHO, are design "oversights" on this rig. LOL. This has mostly involved sawing off all of the rusted out...
  34. J

    cold start tips for the Kubota diesel 'Hoppers?

    I realize it's a bit early for winter weather concerns, but as I am hoping to pick up a snow thrower by Fall i wanted to know if there are any tricks or tips using the diesel Grasshoppers when it starts getting really cold outside? I know my old diesel truck had a few quirks when the temps...
  35. J

    aftermarket paint that matches GH brown & tan?

    I'm just looking to touch up the leading edge of my deck and a few other small spots and would like to know if Rustoleum or Krylon have a color that you 'Hopper owners have found that closely matches Grasshopper brown and/or tan? i haven't gone hunting through my local auto supply places yet...
  36. J

    Diesel additives for small Kubota engines?

    Years ago I owed a diesel pick-up. My mechanic told me that adding Power Service Diesel Kleen additive helped to offset the modern diesel fuel in my older ('84) truck, as well as being good for its injection cleaning properties and the cetane boost. So, my question is do you diesel mower owners...
  37. J

    Will a new 721 engine hood fit older machine?

    I really like the look of the full coverage engine hoods on the newer Grasshoppers. Anyone know if they would retrofit onto my older ('97) 721D??? It would keep the engine a little cleaner and the full sides would help keep the engine noise down a bit, too. Thanks!
  38. J

    Engine size question

    I just happened to notice something odd while cleaning up the mower yesterday afternoon. The Kubota engine tag doesn't seem to jive and it has me in a quandary. My 'new' GH is a 721D, but the motor ID says: I brought it up to the previous owner and he had never even noticed it before. So...
  39. J

    LED replacements for stock headlights?

    Anyone upgraded their stock 'Hopper lights for a set of LED units?? The forklifts where I work were just replaced under lease and all of the new lifts have LED headlights. Man, those things are amazingly bright! LED has many benefits: they run cooler, last longer and draw less juice from the...
  40. J

    WANTED: wheels for GH 721D 5-hole 8x6 (for bar tread)

    I'd like to pick up a spare pair of rims for my Grasshopper so I can mount another set of turf-friendlier tires in order to allow me to swap one set for the other when Winter gets here and I need the bar tread chevron-style tires to get more traction for snow pushing/throwing. Anyone have a...
  41. J

    ROPS for GH 721D

    Anyone have measurements on the factory ROPS for a Grasshopper??? My quick tape measure once-over gave me 24" outside frame-to-outside frame at the point just behind the fender/seat where it looks as though the factory ROPS bolts up. I figured roughly 18" up then a bend back (unsure of the...
  42. J

    3000 vs. 4000 series retail $

    Just curious what a top-of-the-line 3000 series tractor retails for compared to the same in the 4000 series. Just the tractor itself, no attachments. Thanks.
  43. J

    question on 721D

    I have this guy at the shop where I work who is selling his GH. It's a 1997 721D with a 72" deck. I know NOTHING about GH mowers other than what little I've read so far here. I am unsure of the hours, but figuring his quote of 90min mow time twice a week 6mos a year then that gives me...
  44. J

    Honda engine transplant for Briggs-powered push mower?

    Hello! I am new to this forum and am hoping for some sage advice for someone like myself who is semi-handy and somewhat mechanically-inclined. LOL My GF has a 199? 21" Troy-Bilt push mower (self-propelled bagger w/ B&S 190cc 6.75 Quantum engine) that got damaged when she accidentally hit the...
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