Yamaha Grizzly ATV Forum

We tell it like it is!

More Power for the Grizzly 350

This is a discussion on More Power for the Grizzly 350 within the Grizzly Engine & Transmission forums, part of the Grizzly Forums category; Went on another ride this weekend with my brother. He owns a 2008 Grizzly 350 IRS which to put it mildly, lacks a lot of ...


Go Back   Yamaha Grizzly ATV Forum > Grizzly Forums > Grizzly Engine & Transmission

Grizzly Engine & Transmission Discuss your Grizzly engine and transmission modifications here.


Reply


Grizzly07's Avatar

Join Date: Dec 2008
Posts: 512
Thanks: 11
Thanked 33 Times in 27 Posts
Rep Power: 72
Grizzly07 is just really niceGrizzly07 is just really niceGrizzly07 is just really niceGrizzly07 is just really nice
Location: West Virginia

Quote  
#1
08-31-2009, 07:57 AM
More Power for the Grizzly 350

Went on another ride this weekend with my brother. He owns a 2008 Grizzly 350 IRS which to put it mildly, lacks a lot of power. I've put in a lot of seat time on 300s, 350s, 400s, etc. with other brands, and IMHO the Grizz 350 has to be one of the most under-powered mid-class atvs on the market. Obviously, he is looking to improve performance. If anyone has any tips for him, let me know and I will pass them along. I've already gave him my opinions, but I want to hear other peoples.
__________________
2012 Teryx4 EPS
2009 Brute Force 750
2002 Suzuki LT80
2007 Grizzly 700 EPS (sold)
My Garage
Reply With Quote
Grizzly07 is offlineReport Post
Cant wait to go ride

Grizzly Ed's Avatar

Join Date: Dec 2007
Age: 47
Posts: 364
Thanks: 6
Thanked 10 Times in 9 Posts
Rep Power: 84
Grizzly Ed will become famous soon enoughGrizzly Ed will become famous soon enough
Location: Ohio

Quote  
#2
08-31-2009, 01:08 PM
Check my garage if you want to see what I've done with mine, its a 2wd but I have done enough I think that has helped it out. I am in beginning of doing a conversion to 4wd so I'm sure it will be different once I get this done in comparison to the 2wd performance.
__________________
Enter the cave of a little Grizzly bear: bear cave
Reply With Quote
Grizzly Ed is offlineReport Post

SHOOTER's Avatar

Join Date: Jul 2009
Posts: 31
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 0
SHOOTER is on a distinguished road
Location: Northeast Arkansas

Quote  
#3
08-31-2009, 04:39 PM
I use to have one it was junk slow and no power thats why i BOUGHT A 700
Reply With Quote
SHOOTER is offlineReport Post

Grizzly07's Avatar

Join Date: Dec 2008
Posts: 512
Thanks: 11
Thanked 33 Times in 27 Posts
Rep Power: 72
Grizzly07 is just really niceGrizzly07 is just really niceGrizzly07 is just really niceGrizzly07 is just really nice
Location: West Virginia

Quote  
#4
08-31-2009, 07:44 PM
Quote:
Originally Posted by SHOOTER View Post
I use to have one it was junk slow and no power thats why i BOUGHT A 700
It's slow and underpowered, but it's not junk.


Quote:
Originally Posted by Grizzly Ed View Post
Check my garage if you want to see what I've done with mine, its a 2wd but I have done enough I think that has helped it out. I am in beginning of doing a conversion to 4wd so I'm sure it will be different once I get this done in comparison to the 2wd performance.
Thanks man. I will pass this along. Nice mods BTW!
__________________
2012 Teryx4 EPS
2009 Brute Force 750
2002 Suzuki LT80
2007 Grizzly 700 EPS (sold)
My Garage
Reply With Quote
Grizzly07 is offlineReport Post

jwede's Avatar

Join Date: Sep 2008
Age: 39
Posts: 226
Thanks: 11
Thanked 18 Times in 17 Posts
Rep Power: 75
jwede has a spectacular aura aboutjwede has a spectacular aura about
Location: Southwest Iowa

Quote  
#5
09-01-2009, 11:12 AM
I have one and the thing is solid, but yes, underpowered. My wife rides it now and is more than happy. It always did what I asked of it.

I did the carb spring mod and that helped. The next thing I want to do to it is the shim mod. The machine has planty of power once it gets going, just needs a lower gear to start.
__________________
2009 Grizzly 550 - Black - Viper 3500# - 26" BH 2.0 - K&N - SS112 - Shimed
1983 Honduh ATC 200 - Big Red - runs great
2009 PoPo RZR - Nuclear Orange - 26" Big Horns on 14" Bruisers - Way too much to list
2008 Grizzly 350 - Red - 4X4 - IRS - Full Ricochets - Carb spring mod
2007 Polaris Sportsman 90 - Green
2009 E-ton Viper 70 - Blue
Reply With Quote
jwede is offlineReport Post

Join Date: Jul 2010
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Riverrancher is on a distinguished road
Quote  
#6
07-27-2010, 11:21 AM
I have a stock 2008 yamaha grizzly 350 4x4 solid rear axle and i am getting a snorkel kit for it to go mudding, but i was wondering if i could get a lift kit and bigger tires without losing performance in the mud. or what could i do that is semi cheap to give it more power
Reply With Quote
Riverrancher is offlineReport Post

Grizzly07's Avatar

Join Date: Dec 2008
Posts: 512
Thanks: 11
Thanked 33 Times in 27 Posts
Rep Power: 72
Grizzly07 is just really niceGrizzly07 is just really niceGrizzly07 is just really niceGrizzly07 is just really nice
Location: West Virginia

Quote  
#7
07-27-2010, 03:19 PM
Quote:
Originally Posted by Riverrancher View Post
I have a stock 2008 yamaha grizzly 350 4x4 solid rear axle and i am getting a snorkel kit for it to go mudding, but i was wondering if i could get a lift kit and bigger tires without losing performance in the mud. or what could i do that is semi cheap to give it more power
We put a 2" exhaust tip, UNI filter and added 3 450 Grizz weights to make a 3-350 and 3-450 clutch weight setup (good trail riding setup). He is still running stock tires and wheels and the difference in power is noticeable. In all, he probably has under $100 in performance mods and I would recommend that anyone with a 350 Grizzly do these simple mods. In addition to this, a re-jet of the carb is needed. We just haven't got around to doing it yet on his. And to answer your question, yes. Bigger tires would certainly have a negative impact on the power...as it would for any machine.
__________________
2012 Teryx4 EPS
2009 Brute Force 750
2002 Suzuki LT80
2007 Grizzly 700 EPS (sold)
My Garage
Reply With Quote
Grizzly07 is offlineReport Post
The Following User Says Thank You to Grizzly07 For This Useful Post:
Grizzly Bryan (01-12-2011)

Join Date: Sep 2012
Age: 42
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Gomezsalfredo is on a distinguished road
Quote  
#8
09-03-2012, 09:12 AM
Did you convert your 350 to 4wd? I have one and I'm planning to do the same thing. Can you share your experience? How much have you spent? What parts you need? Thank you in advance.
Reply With Quote
Gomezsalfredo is offlineReport Post

adan350's Avatar

Join Date: Jan 2011
Age: 21
Posts: 78
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 46
adan350 is on a distinguished road
Location: Northern California

Quote  
#9
09-08-2012, 02:39 AM
what will the 450 weights do for the quad, I'm also wanting to get some more power out of my 350. does it give a lot more bottom end. I'm looking to do some clutch work a new pipe and a re-jet so i don't run lean.
__________________
08 350 Grizzly IRS
Twin-Air air filter
Moose Racing exhaust tip
2500lb Champion winch
Moose Racing gas cap vent tube
Super ATV 2" lift kit
Sway Bar Delete
1mm Shim Mod
Reply With Quote
adan350 is offlineReport Post

TrailWolf's Avatar

Join Date: Dec 2011
Posts: 662
Thanks: 125
Thanked 202 Times in 171 Posts
Rep Power: 38
TrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond reputeTrailWolf has a reputation beyond repute
Location: Mississippi

Quote  
#10
09-08-2012, 09:44 AM
Quote:
Originally Posted by adan350 View Post
what will the 450 weights do for the quad, I'm also wanting to get some more power out of my 350. does it give a lot more bottom end. I'm looking to do some clutch work a new pipe and a re-jet so i don't run lean.
The best thing you can do for the 350 for power is a shim. Primary Shim Having lighter weights will keep it in low longer, but the RPM will run much higher.
__________________
03 450 Kodiak 4x4
Warn 2500
Warn Front Bumper
Stick Stoppers

Moose
Fender Bags
PowerMadd Hand Guards
Audio Tube
IPT 112's
27'' Silverback X-Lites
HMF Slip-On
Uni Foam Filter
Fully Snorkeled

JBS Sheave
12 Gram OD Weights
Blue Secondary Spring

Modded Carb Spring



Last edited by TrailWolf; 09-08-2012 at 09:48 AM..
Reply With Quote
TrailWolf is offlineReport Post

adan350's Avatar

Join Date: Jan 2011
Age: 21
Posts: 78
Thanks: 0
Thanked 3 Times in 3 Posts
Rep Power: 46
adan350 is on a distinguished road
Location: Northern California

Quote  
#11
09-10-2012, 03:51 AM
Is there anywhere other than eBay to get the shims for the cvt. What is the Carb spring mod
__________________
08 350 Grizzly IRS
Twin-Air air filter
Moose Racing exhaust tip
2500lb Champion winch
Moose Racing gas cap vent tube
Super ATV 2" lift kit
Sway Bar Delete
1mm Shim Mod
Reply With Quote
adan350 is offlineReport Post

Join Date: Feb 2013
Posts: 15
Thanks: 2
Thanked 0 Times in 0 Posts
Rep Power: 0
bucket is on a distinguished road
Location: jackson ky. in the sticks

Quote  
#12
03-19-2013, 08:43 PM
i have a 2011 350 grizzly.i open up original exhaust k&n air lid off #20 pilot #133.1 main jets.it runs great.wood some 450 rollers and blue secondary spring help?i really need to soon.bucket/im gone****
Reply With Quote
bucket is offlineReport Post

Join Date: Feb 2013
Posts: 15
Thanks: 2
Thanked 0 Times in 0 Posts
Rep Power: 0
bucket is on a distinguished road
Location: jackson ky. in the sticks

Quote  
#13
03-31-2014, 11:06 AM
I put a 136.3 main and 35 pilot end off pipe it help it some.
Reply With Quote
bucket is offlineReport Post
Reply

Lower Navigation
Go Back   Yamaha Grizzly ATV Forum > Grizzly Forums > Grizzly Engine & Transmission



Search tags for this page
2011grizzzly350 4 4 performance parts
,

2014 grizzly 350 performance parts

,

350 grizzly power

,
grizzly 350 engine
,
grizzly 350 performance
,

grizzly 350 performance mods

,

grizzly 350 power

,

grizzly 350 power mods

,

grizzly 350 upgrades

,

more power 350 grizzly

,
power of 350 yamaha grizzly
,
put bigger jets in 2011350 griz,now it misses when i open it up
,
what can you do to get more performace out of a yamaha gizzly 350
,
yamaha conversion 350 2009
,

yamaha grizzly 350 upgrades

Click on a term to search our sites for related topics.

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Grizzly making no power duttey Grizzly Talk 6 06-11-2009 09:45 PM
Grizzly Power Commander... How much?? mark21 Grizzly Electrical & Lighting 4 08-21-2008 11:41 AM
Grizzly vs. BATTERY POWER WildWest Grizzly Challenges 10 04-07-2008 06:44 PM
grizzly power !!!!!! justclapp Grizzly Talk 8 03-10-2008 10:06 AM
Grizzly 700 Power Commander triple j Grizzly Engine & Transmission 0 07-08-2007 07:34 AM

All times are GMT -5. The time now is 10:21 AM. Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc. Website by Jamey Garrant (GEARSLAYER).