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My mates ride on has a 21 HP sinle cyl briggs/stratton. starter
My mates ride on has a 21 HP sinle cyl briggs/stratton. starter is fine & will swing engine as long as not on compression stroke. have checked valve lash & setting to spec has starter still unable to … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
2,108 satisfied customers
The intake rocker arm is opening, what seems to be normal.
The intake rocker arm is opening, what seems to be normal. The exhaust rocker arm is barley opening at all. With the lash as close as it can be at Tdc. Popping sound when it is running. Push the throt… read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
2,108 satisfied customers
I have a Tecumseh ohv 155 spec. 204509 riding mower engine
I have a Tecumseh ohv 155 spec. 204509 riding mower engine and I suspect it needs a head gasket. I had a guy come out who said he thought it needed a new carb, but I put a new carb on last summer when… read more
Donald
Donald
Owner / Technician
High School
2,680 satisfied customers
I have a kohler cv745 27hp vtwin just replaced head gaskets
I have a kohler cv745 27hp vtwin just replaced head gaskets torqued everything according to kohler manual. compression is 130 in each cylinder, good spark and good gas. now the engine will not start, … read more
PK.
PK.
Owner
High School or GED
943 satisfied customers
Hi guys; Engine is model 21A707 in a murray 38inch/12.5 hp
Hi guys; Engine is model 21A707 in a murray 38inch/12.5 hp mower.. When unit is started with throttle in fast position -, it runs with lots of backfires... continuous bsckfires it seems to me. When st… read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,342 satisfied customers
I have a generac 7550 with a gn 410 OHV. It is running rich
I have a generac 7550 with a gn 410 OHV. It is running rich and occasionally backfires out the carb. I have cleaned the carb with Gumout and compressed air however it was spotless inside. I took the v… read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,342 satisfied customers
I have a 2004 Simplicity garden tractor with a Kawasaki FD750D
I have a 2004 Simplicity garden tractor with a Kawasaki FD750D 27 hp engine. It has always run rough at lower rpms after getting warmed up, any idea what could be causing this?… read more
wheelhrs
wheelhrs
Vocational, Technical or Trade Scho
424 satisfied customers
I have a Toro Super Recycler (10 years old) with B&S 6.75hp
I have a Toro Super Recycler (10 years old) with B&S 6.75hp motor that is very hard starting. Thought the spark was anemic so replaced the mag - no change. Replaced the carb still won't start right. I… read more
wheelhrs
wheelhrs
Vocational, Technical or Trade Scho
424 satisfied customers
I have a 20 hp engine, model # XXXXX type 0119-E1 I bought
I have a 20 hp engine, model # XXXXX type 0119-E1 I bought a used lawn tractor and thot it had full power but after a half hour of use it just didn't seem right. Les and less power and thenwould not s… read more
PK.
PK.
Owner
High School or GED
943 satisfied customers
i have a generac 4000 watt generator.the problem is that the
i have a generac 4000 watt generator.the problem is that the generator ran for about 10 minutes and then shut off.when i tried to start it again,the pull string was very hard to pull,almost like the e… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
How do i adjust the valves on my onan 4000 genset b series.
How do i adjust the valves on my onan 4000 genset b series. Its got a loud tapping noise when running.… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
I have a Cub Cadet with an 18HP horzontal shaft engine. The
I have a Cub Cadet with an 18HP horzontal shaft engine. The engine has been running a bit rough. When trying start today, engine will not start. Coughs fire back through the carb when choked. I am a p… read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 satisfied customers
I had a problem with my exhaust valve. The rocker arm had
I had a problem with my exhaust valve. The rocker arm had loosened and the engine stopped. In the process of tightening the adjusting nut I broke the bolt holding the rocker arm to the engine. After r… read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 satisfied customers
I have a 1996 6 hp Tecumseh Lawn mower engine. I keep it clean
I have a 1996 6 hp Tecumseh Lawn mower engine. I keep it clean and well maintained over the years. Last year I put a new carb on it along with belts & pulleys. Always has started on one or two pulls. … read more
Vince O.
Vince O.
Small Engine Technician
High School or GED
2,943 satisfied customers
I have a 18.5 briggs engine, at time engine turns very slow
I have a 18.5 briggs engine, at time engine turns very slow acting like battery low, others it turns over and over back firing at time and evently starts. replaced battery three time, seems to ruin sa… read more
J.R.
J.R.
Vocational, Technical or Trade Scho
7,173 satisfied customers
I have a 2005 Huskee Supreme 18.5HP riding mower. I rebuilt
I have a 2005 Huskee Supreme 18.5HP riding mower. I rebuilt the engine internally. When I put it back together, it turns over but occasionally backfires through the muffler. The keyway on the flywheel… read more
Chris Huber
Chris Huber
President
Vocational, Technical or Trade Scho
501 satisfied customers
i have a gxv390 it just stopped running i found that the rocker
i have a gxv390 it just stopped running i found that the rocker arm on the exuast side had broken i did a leakdown the valves seem to be sealed up but when i replaced the rocker arm it seems to be ope… read more
Hank F.
Hank F.
Service Technician
High School or GED
5,366 satisfied customers
Hello I have a X Mark Lazer with a ch25s engine , it seems
Hello: I have a X Mark Lazer with a ch25s engine , it seems to be running on one cylinder, most of the time . I will run on either cylinder if i remove one of the spark plug wires . It seems on side o… read more
roger
roger
owner of small engine shop
Vocational, Technical or Trade Scho
350 satisfied customers
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Curtis B.

Curtis B.

Technician

15,342 satisfied customers

have worked on and around most engine models for 35 yrs./Polaris ATV expert

Rick

Rick

Factory Authorized Trainer

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Outdoor Power Equipment technical trainer since 1990, covering eight states.

Jon K.

Jon K.

Small Engine Diagnostic Expert

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Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines

James W

James W

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7 years as Mechanic & Parts Manager for Brother who has Owned Lawn & Garden Repair shop for 35 years

Vince O.

Vince O.

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2,943 satisfied customers

Over 30 years experience repairing lawn and garden equipment. Chainsaws, mowers,blowers and trimmers

Wayne

Wayne

Engine Rebuilder

2,108 satisfied customers

many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines

RUSS

RUSS

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1,723 satisfied customers

28 YEAR SERVICE TECHNICIAN

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