How to mend ... Going Rpm Runs

the engine pulsates???

it starts fine, at idle or at full speed the engine pulsates in rpm. up then down. repeats over and over again... [Read more]

Onan P220G, Nikki 146 0479 Carb?

Engine has 1265 Hrs, it burns no oil very solid. It runs at 2800-3000 RPM's but at full throttle it will stop ... [Read more]

I have a 33cc 1999 Homelite 14in saw, runs but wont top out?

I have a 33cc 1999 Homelite 14in saw, runs but wont top out. Idles fine, spools up but will not get the RPM to... [Read more]

xlt runs then falls flat?

xlt 1200 idles great starts fine heats up and then acts like it loses fuel or cylinder wont pull over 4000 rpm... [Read more]

Why is motor quitting at 3000 rpm?

My chevy 307 inboard has had a new electronic fuel pump installed as well as both the water/fuel separation fi... [Read more]

vauhall vectra 2.5 v6 idles at 1500 rpm?

yesterday my car started ticking over at 1500 rpm. it has not done this before. when you start it from cold it... [Read more]

Renault Laguna 2 1.6 'stutter'?

I have a 52 plate Laguna 1.6ltr which has developed a 'stutter' between 2600 rpm and 3000 rpm. The problem is... [Read more]

engine starts ok but then rpm goes up on its own?

engine runs on its own oil

What is wrong with my Vectra? low/rough idle/stalling fault!?

I have a T reg/99 1.8/16v eco Vauxhall Vectra, generally it runs ok! but when I pull up in neutral, idle is ro... [Read more]

How do I stop my engine from running rough?

My engine runs rough at idle and low RPM. Seems to go at RPMs greater than 2000. I changed out the spark plu... [Read more]

How do I adjust my Poulan Weedeater GHT225 carb for running at high speed?

I have a weedeater GHT225 trimmer which ran fine the one time I used it last spring 2007. It will start r... [Read more]

10HP Tecumsah won't run smoothly unless choke half closed?

This is on a Coleman Maxa 8500 generator. If choke is wide open, it accelerates, then lets off, backfiring, t... [Read more]

My ttr yamaha1987 dirt bike cuts out at high Rpm but idles fine what is it?

My 1987 yamaha ttr225 runs fine at idle and low rpm when ridden but when you try to rev it up the bike wants t... [Read more]

what are the proper fuel/air mixture for my mac 2816?

I can.t get my mac 2816 to start. runs for a few seconds @ low rps then stops I can.t get it to operate at hi... [Read more]

How do I cure rough running in my Briggs & Stratton 'Quattro' engine?

After starting the Briggs & Stratton 'Quattro' engine in my Billy Goat KD-10 'Estate' vac, the engine then run... [Read more]

B&S Pulsajet carb needle doesn't do anything?

I have a B&S 5.5 engine (103000 series) on a splitter that with the air cleaner OFF, starts & runs at max rpm ... [Read more]

john deer 310a back hoe, runs fine, then suts down,?

either at idle or full rated speed ( 2500 rpm)., lots of fuel flow(deisel) at lift pump, fuel filter and at in... [Read more]

how can i fix my hyundai lantra?

my lantra runs at 3000rpm on idle and sticks on higher rpm when driven.i have changed the idle speed aculater... [Read more]

my car has trouble staying on?

i have a 95 escort i have 2 pump the gas 4 it 2 start it runs good 4 about 10mins then the rpm goes down and i... [Read more]

how to stop O2 sensors going overvoltage?

Vauxhaul frontera 3.2 limited (latest shape). only when running on LPG, mostly in damp conditions but also whe... [Read more]