honda hrm21 question
- Thread starter maxster94
- Start date
bertsmobile1
Lawn Royalty
- Joined
- Nov 29, 2014
- Threads
- 65
- Messages
- 24,995
It sits in a slot cut into the crankshaft
When you take the retaining nut / bolt off the flywheel you will see the slot .
When you take the retaining nut / bolt off the flywheel you will see the slot .
bertsmobile1
Lawn Royalty
- Joined
- Nov 29, 2014
- Threads
- 65
- Messages
- 24,995
The mower is the same as every Briggs on a bowl.
So the flywheel is under the blower housing which is the metal bit the pull starter sits on.
On most of them use the same 3 bolts that hold the pull starter to hold the housing on
Right under there is the flywheel, same as every engine apart from the Victa power torque engine which has the flywheel underneath the crankcase.
What you are looking at under the mower deck is the blade clutch.
You will find it very useful to go to one of the Honda parts suppliers , download the parts breakdown then print it out.
If nothing else it will show you how the engine goes together so you don't end up pounding on a part that is still bolted on or pick it up by a part that is loose and have it fall on your foot.
So the flywheel is under the blower housing which is the metal bit the pull starter sits on.
On most of them use the same 3 bolts that hold the pull starter to hold the housing on
Right under there is the flywheel, same as every engine apart from the Victa power torque engine which has the flywheel underneath the crankcase.
What you are looking at under the mower deck is the blade clutch.
You will find it very useful to go to one of the Honda parts suppliers , download the parts breakdown then print it out.
If nothing else it will show you how the engine goes together so you don't end up pounding on a part that is still bolted on or pick it up by a part that is loose and have it fall on your foot.
A picture is worth a thousand words, and I'll bet everyone assumed you have an engine that looks somewhat similar to this
https://www.singlecylinderstore.com/image/cache/Honda%20engine/SCR_GCV190-800x800.jpg
since that's a pretty popular model of engine for a mower. That picture you posted explains a lot.
I did not mean to be condescending, but I thought you had the usual engine most are familiar with, and that was my mistake not being familiar with mowers other than what I own or have seen used in my neighborhood. Sorry.
https://www.singlecylinderstore.com/image/cache/Honda%20engine/SCR_GCV190-800x800.jpg
since that's a pretty popular model of engine for a mower. That picture you posted explains a lot.
I did not mean to be condescending, but I thought you had the usual engine most are familiar with, and that was my mistake not being familiar with mowers other than what I own or have seen used in my neighborhood. Sorry.
(HurstGN)
Ya I know that’s what everyone was thinking, I wasn’t able to get pic before I did.
I have worked on small engines for years (few mowers and am familiar with pic u posted).
I didn’t want to take anything apart if I didn’t have to or was wrong part. I am pretty sure it’s carb, I took apart and jets were in bowl when it came apart, I noticed the small o-ring on one was partially missing. So I bought new, seemed somewhat smaller but went in good. Still has same issue.
Chugs when full throttle, gas petcock wide open.
When I shut petcock off, it will run strong for few seconds just before it runs out of gas.
Ya I know that’s what everyone was thinking, I wasn’t able to get pic before I did.
I have worked on small engines for years (few mowers and am familiar with pic u posted).
I didn’t want to take anything apart if I didn’t have to or was wrong part. I am pretty sure it’s carb, I took apart and jets were in bowl when it came apart, I noticed the small o-ring on one was partially missing. So I bought new, seemed somewhat smaller but went in good. Still has same issue.
Chugs when full throttle, gas petcock wide open.
When I shut petcock off, it will run strong for few seconds just before it runs out of gas.
bertsmobile1
Lawn Royalty
- Joined
- Nov 29, 2014
- Threads
- 65
- Messages
- 24,995
Firstly , humble pie time.
Never seen nor heard of this mower engine, no service information for it either.
The flywheel looks like it is underneath as you said so the key will be there.
However it sounds like you float level is too high or the carb jets have become enlarged.
It does not sound like a timing problem.
Never seen nor heard of this mower engine, no service information for it either.
The flywheel looks like it is underneath as you said so the key will be there.
However it sounds like you float level is too high or the carb jets have become enlarged.
It does not sound like a timing problem.